August 28, 2026.

Spectral Fingerprints of Gauge Theories on a Quantum ComputerTier 3

Maximally mixed state spectral sampling is an unbiased quantum algorithm that allows for extraction of a finite-resolution spectral distribution from a Hamiltonian over potentially the entire allowed range of energies. We show how it may be focused on any desired area of the spectrum in order to learn about the full \textit{fingerprint} of the model of interest: from its gro...

Ultra-Low-Loss Silicon Nitride on Sapphire for Broad-Transparency Nonlinear and Quantum PhotonicsTier 3

The field of photonic integrated circuits (PIC) has flourished in the past two decades, fueling numerous cutting-edge applications across sensing, networking, data interconnect, and quantum information processing. As a guiding material for PIC, Si$_3$N$_4$ has seen extensive use for its ultra-low loss, broad transparency, and diversity in implementation across both thin and...

A Superconducting Phase Transition Single-Electron TransistorTier 3

Quantum computers require fast and accurate methods for qubit state detection. Phase-transition sensors exploit the abrupt change between two physical states of a material to achieve enhanced sensitivity and have enabled advanced detectors for quantum technologies, such as superconducting nanowire single-photon detectors. However, this sensing principle has not yet been appl...

Bound-state-mediated remote charging of a quantum batteryTier 3

Remote charging of a quantum battery (QB) is hindered by radiative leakage of the excitation into the photonic environment that acts as a mediator for energy transfer. We consider a charger-battery model consisting of two two-level systems (TLSs) that are locally coupled to two sites of a one-dimensional coupled cavity array. When their transition frequency lies outside the...

Topologically protected perfect crossed Andreev reflection in flux-engineered quantum wire junctionsTier 3

Generating non-locally entangled electron pairs via Cooper-pair splitting is vital for solid-state quantum information processing. However, isolating the underlying crossed Andreev reflection (CAR) is challenging due to competing transport processes like electron tunneling (ET) and local Andreev reflection (AR). Here, we propose a flux-tunable four-terminal normal metal-supe...

A thermometric quantum Brownian model for low-temperature electronicsTier 3

Quantum mechanical models of resistors in quantum electronics are often based on the quantum optical master equation (QOME). The QOME overlooks several fundamental properties, limiting its ability to model certain superconducting phenomena. Here we present a thermometric model of resistors, adapted from the quantum Brownian motion equation (QBME), that facilitates practical...

IonQ Demonstrates Real-Time QEC Decoding at MegaQuOp Scale on a Single Apple M4 Max CPUTier 2

<p>IonQ quantum information researchers Min Ye, Andrii Maksymov, and Nicolas Delfosse have published research on arXiv (arXiv:2608.25027) detailing an end-to-end real-time Quantum Error Correction (QEC) decoding pipeline for large-scale trapped-ion quantum computers. Executed entirely on a single off-the-shelf Apple M4 Max CPU (12 cores used), the decoding stack processed Me...

Guest Post: Quantum Readiness Starts With the Infrastructure We’re Building TodayTier 2

<a href="https://thequantuminsider.com/2026/08/28/quantum-readiness-infrastructure-around-qpus/" rel="nofollow" title="Guest Post: Quantum Readiness Starts With the Infrastructure We’re Building Today"><img alt="Kyle Okamoto Headshot" class="webfeedsFeaturedVisual wp-post-image" height="661" src="https://thequantuminsider.com/wp-content/uploads/2026/08/2026-08-28_15-31.png"...

Quantum-enhanced ghost imaging recognition via joint optimization of speckle patterns and quantum network parametersTier 3

Ghost imaging enables nonlocal image reconstruction and exhibits strong robustness against interference, but achieving high-fidelity recognition at ultra-low sampling rates remains challenging. Quantum machine learning offers a novel approach for efficient feature extraction on noisy medium-scale quantum devices; however, existing methods generally suffer from low recognitio...

Exact Stiffness and Dynamical Responses from Fock-Space FragmentationTier 3

Exactly solvable quantum many-body models are rare, and even when their spectra are algebraically organized, dynamical responses generally remain difficult to obtain because they probe an extensive number of excited states. Here we show that quantum geometric nesting (QGN) models admit an unusually strong form of solvability rooted in \emph{Fock-space fragmentation}: excitat...

QH-GEM: Quantum-Hydrodynamic Generative ModelingTier 3

In this paper, we develop a deterministic, physically constrained generative framework based on the Madelung formulation of the free-particle Schrödinger equation. A reference Born probability density and a controllable initial phase function serve as initial data for the free Madelung system, which couples the Born probability density and phase function through the Bohm qua...

Dynamics and spectra of open quantum systems coupled to anharmonic environmentsTier 3

In open quantum systems, the environment is typically modelled as a collection of harmonic oscillators, whereas realistic environments often exhibit unique non-Markovian effects due to the anharmonicity of the environment. Here we present a framework for modelling anharmonic environments in open quantum systems numerically exactly, in which, via a matching criterion, we map...

Geometric optimality of entanglement-induced fast qubit resetTier 3

Fast and reliable qubit reset is essential for the efficient operation of quantum processors. Among the proposed strategies, Mpemba-effect-based protocols offer a simple route to accelerated relaxation, but provide limited insight into the optimality of the full reset dynamics. Geometric approaches, by contrast, quantify optimality but do not generally suggest practical acce...

Italian Council of State Rejects Region Appeal, Resetting €61.2M Campania Quantum TenderTier 2

<p>Italy’s Consiglio di Stato (Section Five) has rejected an appeal by the Campania Region and IBM Italia, upholding the lower administrative court's decision to annul a €61.2 million public tender for a regional quantum computer intended for the University of Salerno campus in Fisciano. The ruling (N. 02397/2026 REG.RIC., published August 26, 2026) resets the [...]</p> <p>T...

FAU Researchers Use Quantum Machine Learning to Predict Heart DiseaseTier 2

<a href="https://thequantuminsider.com/2026/08/27/fau-researchers-use-quantum-machine-learning-to-predict-heart-disease/" rel="nofollow" title="FAU Researchers Use Quantum Machine Learning to Predict Heart Disease"><img alt="Arslan Munir, Ph.D" class="webfeedsFeaturedVisual wp-post-image" height="568" src="https://thequantuminsider.com/wp-content/uploads/2026/08/2026-08-27_2...

Postquant Labs Launches QuipSwap Bridgeless Protocol for Quantum-Safe Cross-Chain TransactionsTier 2

<p>Decentralized quantum network developer Postquant Labs has announced the public launch of QuipSwap, a trustless, bridgeless cross-chain swap protocol engineered to eliminate bridge vulnerabilities and mitigate quantum decryption risks across multi-blockchain workflows. Developed alongside quip.network, the protocol removes centralized intermediaries, smart contract bridge...

NASA Awards Infleqtion $20M Follow-On Contract for Quantum Gravity Gradiometer Pathfinder MissionTier 2

<p>Infleqtion (NYSE: INFQ) has received a $20 million follow-on contract from NASA to advance the Quantum Gravity Gradiometer Pathfinder (QGGPf) mission, led by NASA’s Jet Propulsion Laboratory (JPL). The award brings total NASA funding for the space-based quantum gravity sensing program to $40 million, moving the mission into its next phase of hardware integration, sub-syst...

EuroHPC Joint Undertaking Selects 13 European QPU Startups for Quantum Grand ChallengeTier 2

<p>The EuroHPC Joint Undertaking (EuroHPC JU) Governing Board has officially approved Decision No. 31/2026, selecting 13 European quantum computing startups under the Quantum Grand Challenge call (HORIZON-JU-EUROHPC-2026-QGC-02). The selected companies receive Phase 1 Coordination and Support Action (CSA) funding as a preliminary milestone to establish technical proof-of-con...

Types of Quantum Computers: 6 Major Quantum Computing ApproachesTier 2

<a href="https://thequantuminsider.com/2026/08/28/main-types-of-quantum-computers-explained/" rel="nofollow" title="Types of Quantum Computers: 6 Major Quantum Computing Approaches"><img alt="Types of Quantum computers." class="webfeedsFeaturedVisual wp-post-image" height="664" src="https://thequantuminsider.com/wp-content/uploads/2023/06/2026-08-27_21-21.png" style="display...

Programmable Cavity Squeezing for Distributed Sensing in a Tweezer ArrayTier 3

Field sensing with state-of-the-art atom interferometers is restricted to the use of uncorrelated devices op- erating in parallel. We can overcome this limitation by using distributed sensing protocols where quantum correlations among spatially-separated devices are engineered in the spatial mode carrying the signal. We show that a tweezer array in a cavity offers an ideal t...

Bridgewater State University Awarded $380,000 MassTech Grant to Expand Undergraduate Quantum LabsTier 2

<p>Bridgewater State University (BSU) has received approximately $380,000 from the Massachusetts Technology Collaborative (MassTech) to advance undergraduate quantum technology education, hands-on laboratory training, and workforce development. Awarded through the MassTech Technology and Innovation Ecosystem program, the grant funds the procurement of three commercial-grade...

A*STAR and NUS Researchers Achieve Qubit Compression for Bio-Molecular Docking on IBM HardwareTier 2

<p>Illustration of the problem formalism and multi-basis encoding approach Researchers from Singapore’s Agency for Science, Technology and Research (A*STAR) and the National University of Singapore (NUS) have introduced a hybrid quantum-classical framework that compresses the qubit footprint required for structure-based drug discovery. Published on arXiv (arXiv:2608.19868),...

QuEra Uses Anthropic AI Agent to Automate Critical Quantum Computer ProcessTier 2

<a href="https://thequantuminsider.com/2026/08/28/quera-uses-anthropic-ai-agent-to-automate-critical-quantum-computer-process/" rel="nofollow" title="QuEra Uses Anthropic AI Agent to Automate Critical Quantum Computer Process"><img alt="QuEra" class="webfeedsFeaturedVisual wp-post-image" height="941" src="https://thequantuminsider.com/wp-content/uploads/2026/08/Quera.png" st...

Conditional contraction coefficients and their applications to quantum networksTier 3

Contraction coefficients quantify the loss of distinguishability induced by a channel and provide a strong form of the data-processing inequality. While standard contraction coefficients ignore auxiliary quantum systems, existing extensions based on complete contraction coefficients require the compared states to have identical reference marginals. In this work, we introduce...

Optimal Gaussian networks for private distributed quantum sensingTier 3

Private distributed quantum sensing aims to estimate an authorized collective parameter while preventing independent estimation of individual local parameters. Here, we analytically characterize Gaussian quantum networks satisfying this perfect local privacy condition. Using a graph representation of the Gaussian pairing matrix, we show that two-mode squeezed vacuum states c...

Towards Reproducible Evaluation of Distributed Quantum Circuit Partitioning AlgorithmsTier 3

Distributed Quantum Computing (DQC) addresses the physical scaling limitations of monolithic quantum processors by networking modular Quantum Processing Units (QPUs). Efficient execution of quantum algorithms on DQC architectures requires compiling them across QPUs while minimizing inter-QPU communication bottlenecks, primarily through circuit partitioning. However, current...

Quantum Interconnects Part I: Strategic Quantum Network FormationTier 3

The realization of large-scale quantum networks requires more than advances in quantum repeaters, memories, and processors, it requires a framework explaining how heterogeneous quantum technologies evolve from isolated deployments into interconnected infrastructures. While the classical Internet evolved under strong utility incentives associated with resource sharing and com...

Dynamics of local quantum information in random unitary circuitsTier 3

The physics of information scrambling in quantum many-body systems is intimately related to thermalisation and emergence of chaos. However, its standard characterisation through bipartite entanglement or operator growth remains inherently coarse-grained, obscuring the spatiotemporal anatomy of how quantum information flows between different regions of the system and across v...

Factorized Boolean representations for efficient quantum synthesisTier 3

Quantum algorithms promise advantages beyond classical reach, but running them on error-corrected hardware requires translating Boolean specifications into reversible circuits, and the resources that translation demands determine what is executable. Established methods minimize a Boolean expression and map it to a circuit, assuming the minimized form is best. Here we show th...

Detuning- and Stark-robust Rydberg gatesTier 3

Rydberg entangling gates driven by a two-photon transition in alkali atoms suffer from an adverse scaling of light-shift-induced errors. Robustness to such detuning errors is known to be impossible to achieve in the design of conventional Rydberg gate protocols, where only one of the qubit states is coupled to the Rydberg state. Here, we show that in a more general framework...

Krylov Break Times from an Inhomogeneous Lieb--Robinson Light ConeTier 3

Krylov and Lanczos approximations are used in quantum dynamics, quantum subspace methods, and Hamiltonian learning. A practical question is how long an $m$-dimensional Krylov truncation can be trusted. We argue that this time is fixed by causal propagation on the associated Jacobi chain. The relevant distance is not the Krylov index itself, but the inhomogeneous transport me...

Randomness can be certified in energy-constrained semi-device-independent scenariosTier 3

The prepare-and-measure framework based on energy constraints offers a practical middle ground between fully device-dependent and device-independent quantum cryptography. The only assumption on an otherwise uncharacterized prepare-and-measure device is that the energy of the prepared states is bounded. Existing security analyses of this framework assume that the preparation...

Dynamics-based nonclassicality witness under dissipative dynamicsTier 3

A dynamics-based test, originally proposed by Tsirelson for the harmonic oscillator, provides a method for certifying quantumness under the assumption of a known Hamiltonian. These tests, however, are typically proposed for isolated systems, an assumption that breaks down in experimental implementation. In this paper, we extend the protocol to the harmonic oscillator coupled...

Evaluating Quantum Kernel Methods for Track-Based Classification in High-Energy PhysicsTier 3

We present a systematic design for large-scale quantum kernel classification, demonstrated through a quantum support vector classifier (QSVC) for particle-track classification using centroid-based CLAS12 drift-chamber features. Each event is encoded into a six-qubit state via a fully entangled ZZFeatureMap, whose fidelities define a quantum kernel within a standard SVM frame...

The Geometry of Dissipative Complexity: A Levi-Type Decomposition Theorem for Markovian Quantum Dynamics via Lie Wedges and Invariant ConesTier 3

Lie algebras describe how control Hamiltonians combine in closed quantum systems. In open Markovian systems, however, dissipation introduces irreversible directions that the Lie algebra alone does not retain. A dynamical Lie wedge preserves this information as a convex cone of locally admissible generators. The classical Levi decomposition separates a finite-dimensional Lie...

The heavy Fermi polaron I: the Lithium-Cesium experimentTier 3

We present details of an experimental platform for studying Fermi polarons in a quantum-gas mixture. The system consists of about a thousand bosonic $^{133}$Cs impurities immersed in a deeply degenerate Fermi gas ($T/T_F \sim 0.2$) of approximately $2\times 10^5$ $^6$Li atoms in a single hyperfine state, with interspecies interactions tunable via a Feshbach resonance. Using...

Optimal cloning of mixed statesTier 3

We consider the problem of approximate cloning of quantum states: given $n$ copies of an unknown state $ρ\in \mathbb{C}^{d \times d}$, prepare an $(n+k)$-copy state with high fidelity to $ρ^{\otimes (n+k)}$. Werner's pure state cloner is the optimal channel for the pure state case, and shows that $n = Θ(kd/\varepsilon)$ copies are necessary and sufficient to clone $k$ additi...

Efficient formation and identification of single emitters in 4H-SiC following maskless heavy ion implantationTier 3

Single photon emitters in silicon carbide (SiC) are a leading platform for scalable quantum technologies. Recent interest has focused on oxygen-vacancy-related emitters, which show exceptionally high optical brightness and strong spin readout contrast. One barrier to scalable quantum devices based on these emitters is the challenge of maskless formation and rapid identificat...

Tight Bounds for Purity and Product Testing from Partial TranspositionTier 3

Coherent measurements across multiple copies of an unknown quantum state can substantially reduce the number of samples required to learn its properties, but remain experimentally challenging. Current experiments typically prepare and measure one copy at a time, potentially adapting later measurements to earlier outcomes. A central challenge is adaptivity, which makes the sp...

Kramers pseudospin and the quantum number proposed for the many-electron Dirac?Coulomb HamiltonianTier 3

The square of a sum of single-electron time reversals has been proposed as a conserved quantity with an integer eigenvalue spectrum for the many-electron Dirac-Coulomb Hamiltonian [Phys. Rev. A 94, 052104 (2016)], and its expectation value is in use as a diagnostic of Kramers contamination. This work identifies the operator behind the construction, a component of a pseudospi...

Fast On-Chip Thermometry with TiN Kinetic Inductance Resonators in 22 nm Process TechnologyTier 3

Understanding the temporal and spatial dependence of temperature is critical in high-performance cryogenic devices. Typical thermometry techniques struggle to simultaneously combine high bandwidth, sensitivity and on-chip integration, limiting their ability to measure fast intra-device thermal fluctuations. Here, we demonstrate a time-resolved thermometry platform based on T...

Crossing the Rotational Sound Barrier in a Quantum SolventTier 3

Molecules embedded in superfluids provide an experimentally controllable platform for investigating impurity physics. Here, we investigate a driven molecule rotating in a superfluid environment, including helium and Bose--Einstein condensates, at rotation frequencies similar to the bath dynamics. Within the experimentally relevant platform of an optical centrifuge, we show t...

Quantum-Inspired Computational Fluid Dynamics for Transient Turbulent Compressible FlowsTier 3

Quantum-inspired algorithms are an emerging class of algorithms for computational fluid dynamics (CFD) with potentially favourable scaling for large problems compared to classical methods. However, their applications have been limited to incompressible flows due to arithmetic limitations, which are addressed in this work. This work introduces the first complete quantum-inspi...

Isotropic Nanoscale Quantum Sensor at Room-TemperatureTier 3

Color-center based quantum sensors provide nanoscale resolution under ambient conditions, yet their applicability remains limited. Because the quantization axes are locked to the host lattice, conventional color centers suffer severe signal loss in off-axis magnetic fields. To address this, we report an isotropic magnetometer enabled by the neutrally charged nitrogen-vacancy...

Cavity-assisted homodyne detection with a single photodiodeTier 3

High-frequency squeezed states are important for quantum metrology and information processing, but quadrature measurements at gigahertz frequencies remain challenging. Balanced homodyne detection (BHD), the standard approach, requires closely matched complex transfer functions in both photodetection channels to suppress local-oscillator (LO) noise and maintain a well-defined...

Corrections induced by the GUP to the Lamb shift of an accelerated atom interacting with a quantum scalar fieldTier 3

We investigate the effect of the GUP on the Lamb shift of a two-level atom interacting with a real massless scalar quantum field, within the DDC formalism. For an atom undergoing inertial motion, uniform acceleration, and uniform circular motion, we analyze the separate contributions of vacuum fluctuations and radiation reaction. We first derive the statistical functions of...

Correcting Connectivity in Arc-Based QUBO Models for Fixed-Fleet Vehicle RoutingTier 3

We revisit a degree-only arc Hamiltonian for fixed-fleet, homogeneous, uncapacitated vehicle routing. Because its local penalties define only a cycle cover, ground states may contain customer cycles disconnected from the depot. We construct a polynomial-size quadratic unconstrained binary optimization (QUBO) repair using capped single-commodity flow and prove that every grou...

Coupled-channel scattering from artificial confinementTier 3

Artificial confinement encodes continuum scattering information in discrete, bound-state-like spectra, allowing reaction observables to be extracted with finite-basis or finite-domain methods. We apply this strategy to a two-channel cluster model of $^4$He with open $^3$H+p and $^3$He+n channels. We extract coupled-channel observables from spectra generated by a harmonic-osc...

Energy Ordering from Nonlinear Quantum DissipationTier 3

Energy-ordered occupation is deeply embedded in quantum physics, from the Aufbau principle governing the filling of electronic states in atoms and molecules to the emergence of low-energy configurations in quantum many-body systems. However, the dynamical mechanism by which a generic quantum state develops such an energy hierarchy remains a fundamental question. Here we show...

Quantum Rare-Event Estimation for Ising Graphical Models with Belief-Propagation State PreparationTier 3

Quantum amplitude estimation can reduce the sampling cost of rare-event probability estimation, but applying it to correlated Ising graphical models is limited by the difficulty of preparing the target distribution and building a practical event oracle. This work explores two approximate strategies for mitigating these challenges. We introduce a sample-free state-preparation...

Quantum Chaos and Spread of States in Krylov Subspace: A Topical ReviewTier 3

Krylov state complexity, or spread complexity, has emerged as a sharp and versatile diagnostic of quantum chaos, information spreading, and many-body dynamics. Built from the Lanczos algorithm and grounded in the optimal-basis theorem, Krylov complexity thereby provides a robust spectroscopic window into quantum dynamics. A central theme is the characteristic overshoot obser...

Uncertainty limits for post-selected metrologyTier 3

For unitary transformations, the quantum Fisher information (QFI) of a pure state is given by the uncertainty of the generator in that state. In post-selected metrology, the QFI is given by a modified expression describing conditional quantum statistics of the generator. Here, we show that the conditional generator uncertainties defined by post-selected QFI correspond to Oza...

Observing relativistic trajectories of single photonsTier 3

While the standard interpretation of quantum mechanics does not assign definite trajectories to particles, the Bohmian interpretation does. Only recently has an operational method for reconciling Bohmian mechanics with relativity been proposed. Here, we experimentally reconstruct relativistic Bohmian trajectories of a single photon in a Michelson-Sagnac interferometer, where...

Adiabatic Otto-like quantum thermodynamical cycle in the non-quasi-static regimeTier 3

We show a finite-time Otto-like quantum thermodynamic cycle that preserves the adiabatic population structure of a time-dependent harmonic oscillator in the non-quasi-static regime. In the conventional energy representation, finite-rate driving induces non-adiabatic population redistribution and leaves residual excitations after the Hamiltonian has returned to its initial va...

Q-CTRL Demonstrates First GPS-Free Quantum Gravimetric Maritime Navigation in Coral Sea Field TrialTier 2

<p>Quantum infrastructure software firm Q-CTRL has announced the world's first open-water field demonstration of a GPS-free, quantum-gravimetric maritime navigation system. Tested aboard a 29-meter surface vessel in the Coral Sea off Australia's eastern coast, the company's Ironstone Opal navigation platform achieved bounded 1-nautical-mile positioning accuracy without satel...

Pasqal Announces Board of Directors Ahead of Nasdaq ListingTier 2

<a href="https://thequantuminsider.com/2026/08/28/pasqal-announces-board-of-directors-ahead-of-nasdaq-trading/" rel="nofollow" title="Pasqal Announces Board of Directors Ahead of Nasdaq Listing"><img alt="Pasqal logo" class="webfeedsFeaturedVisual wp-post-image" height="656" src="https://thequantuminsider.com/wp-content/uploads/2026/08/2026-08-28_14-43.png" style="display: b...

Higher-Energy X-Rays Could Enable a New Form of Quantum SensingTier 2

<a href="https://thequantuminsider.com/2026/08/28/higher-energy-x-rays-could-enable-a-new-form-of-quantum-sensing/" rel="nofollow" title="Higher-Energy X-Rays Could Enable a New Form of Quantum Sensing"><img alt="helium" class="webfeedsFeaturedVisual wp-post-image" height="628" src="https://thequantuminsider.com/wp-content/uploads/2026/08/tenio_helium_laser_1.jpg" style="dis...

Pasqal Completes SPAC Merger With $360 Million in CashTier 2

<a href="https://thequantuminsider.com/2026/08/28/pasqal-completes-spac-merger-with-360-million-in-cash/" rel="nofollow" title="Pasqal Completes SPAC Merger With $360 Million in Cash"><img alt="Pasqal" class="webfeedsFeaturedVisual wp-post-image" height="630" src="https://thequantuminsider.com/wp-content/uploads/2026/08/Screenshot-2026-08-28-at-3.34.52-AM.png" style="display...

NASA Awards Infleqtion $20M Contract for Quantum Gravity SensorTier 2

<a href="https://thequantuminsider.com/2026/08/27/nasa-awards-infleqtion-20m-contract-for-quantum-gravity-sensor/" rel="nofollow" title="NASA Awards Infleqtion $20M Contract for Quantum Gravity Sensor"><img alt="Infleqtion logo" class="webfeedsFeaturedVisual wp-post-image" height="661" src="https://thequantuminsider.com/wp-content/uploads/2026/08/2026-08-27_17-54.png" style=...

Previously: 2026-08-19, 2026-08-14, 2026-05-31

Q-CTRL Demonstrates GPS-Free Quantum Gravimetric Navigation Demonstration in Maritime Field TrialTier 2

<a href="https://thequantuminsider.com/2026/08/27/q-ctrl-demonstrates-gps-free-quantum-gravimetric-navigation-demonstration-in-maritime-field-trial/" rel="nofollow" title="Q-CTRL Demonstrates GPS-Free Quantum Gravimetric Navigation Demonstration in Maritime Field Trial"><img alt="" class="webfeedsFeaturedVisual wp-post-image" height="1365" src="https://thequantuminsider.com/...

On supporting affine functionals for Entanglement of FormationTier 3

In several articles, the authors assume that the convex roof structure of the EoF and finite-dimensionality of subsystems $A$ and $B$ guarantee the existence of the (global) supporting affine functional for the EoF at any state of the system $AB$. This means that for any state $ρ$ of $AB$ there is a Hermitian operator $Λ_ρ$ on $\mathcal{H}_{AB}=\mathcal{H}_A\otimes\mathcal{H...

Efficient Quantum Simulations of Yang-Mills theory with Maximal-tree GaugeTier 3

We develop a quantum algorithmic framework for the efficient simulation of Yang--Mills theories, including the $\mathrm{SU}(3)$ gauge theory in Quantum Chromodynamics (QCD). The framework uses maximal-tree gauge in terms of gauge field variables that removes all local gauge redundancies. In the resulting gauge-fixed formulation and digitization in the field-amplitude basis,...

Bridgewater State University Receives $380K for Quantum Technology EducationTier 2

<a href="https://thequantuminsider.com/2026/08/27/bridgewater-state-university-receives-380k-for-quantum-technology-education/" rel="nofollow" title="Bridgewater State University Receives $380K for Quantum Technology Education"><img alt="Bridgewater State University logo" class="webfeedsFeaturedVisual wp-post-image" height="654" src="https://thequantuminsider.com/wp-content/...

Quantum Chaos and Quantum Optimal TransportTier 3

Chaos in classical systems can be characterized by Lyapunov exponents that measure the exponential divergence of nearby trajectories, but directly extending this framework to quantum mechanics has been a persistent challenge. The wavelike nature of quantum states and the non-commutative geometry of quantum phase space obstruct a straightforward generalization of classical ch...

Nordic Defence Tech Hub Expands Dual-Use Deep-Tech Ecosystem in Helsinki RegionTier 2

<p>Enter Espoo and the City of Espoo have announced a major expansion of the Defence Tech Hub, the Nordics' leading dual-use deep-tech ecosystem centered in the Otaniemi innovation district of Espoo, Finland. Bringing together over 100 companies, research institutes, and defense stakeholders, the hub consolidates Finland’s capabilities across quantum computing, space/SAR sat...

Strong Converse Exponent of Quantum State MergingTier 3

We determine the strong converse exponent for the entanglement cost of quantum state merging, showing that it is characterized by the optimized $α$-$z$ conditional Rényi entropies with $z=α/2\in[1/2,1]$. This contrasts with the sandwiched conditional Rényi entropies that typically govern strong converse exponents in quantum information theory. As a consequence, we derive the...