1157 papers
This paper demonstrates that the low-temperature ferromagnet-to-paramagnet transition in the two-dimensional random-bond Ising model is controlled by a zero-temperature fixed point that can be understood via a renormalization group mapping to a noninteracting quantum problem exhibiting an infinite randomness fixed point, where the tunneling exponent equals the spin stiffness exponent.
This paper unifies the understanding of Strong Zero Modes (SZMs) by revealing their underlying commutant algebra structures, which not only demystifies their connection to ground state phases but also enables the construction of integrability-breaking models that preserve exact SZMs, while distinguishing between SZMs that survive such perturbations and those that do not.
This paper proposes a new local decoder for the toric code called the 2D signal-rule, which uses binary signal exchanges to attract defects and achieves a high pseudo-threshold with optimal scaling, offering a promising path toward practical two-dimensional local quantum memory.
This paper demonstrates that while the classical problem of Euler's thirty-six officers has no solution for order six, a solution exists using entangled quantum Latin squares, whereas mutually orthogonal quantum Latin squares of order six are impossible without entanglement.
This paper investigates entanglement asymmetry in fragmented quantum systems, demonstrating that while typical asymmetry is bounded in conventional settings, it can scale extensively in fragmented systems, thereby providing a distinct probe to differentiate between classical and genuine quantum fragmentation.
This paper introduces Fredholm integral operators involving Airy functions that commute with Hamiltonians of quantum systems featuring quartic potentials, offering a framework for high-accuracy numerical analysis and dual descriptions of these systems as infinite one-dimensional chains.
This paper introduces Entanglement-Based Authenticated Quantum Key Distribution (EAQKD), a novel protocol that integrates quantum entanglement with information-theoretic authentication to achieve unconditional security, demonstrating through realistic simulations that it maintains low error rates and practical key generation speeds over long distances while outperforming existing QKD protocols.
This paper derives exact analytical expressions for the transition of a two-level quantum system from an initial linear superposition of eigenstates to a definite eigenstate under a delta-function pulse, demonstrating that specific interaction strengths can induce an abrupt, measurement-like "collapse" of the wavefunction that is independent of the system's energy gap.
This paper demonstrates that black-box optimization frameworks, specifically Bayesian Optimization and Genetic Algorithms, can effectively optimize satellite orbital inclinations and allocations to significantly maximize entanglement generation rates in global quantum networks compared to naive constellation designs.
This paper presents a scalable, monolithic fabrication strategy that integrates high-stress silicon nitride membranes with distributed Bragg reflectors using dry processing techniques, achieving self-aligned optomechanical cavities with high optical finesse and mechanical quality factors while eliminating the alignment and stability bottlenecks of conventional methods.
This paper demonstrates spin-mechanical conversion in a levitated microdiamond with nitrogen-vacancy centers, enabling high-contrast, non-perturbative readout of quantum spin dynamics by converting spin measurement outcomes into macroscopic mechanical rotation.
This paper presents a fault-tolerant framework for measurement-based holonomic quantum computation that suppresses non-Markovian noise via the quantum Zeno effect and corrects Markovian errors by steering the evolution path mid-flight based on decoded measurement syndromes, enabling faster gate implementation by relaxing adiabaticity requirements.
This paper demonstrates a low-confinement silicon nitride photonic platform integrated with piezo-optomechanical actuators that achieves ultra-low propagation losses of 0.026 dB/cm at visible wavelengths, enabling scalable quantum circuits with high-performance active functionality.
This paper develops a unified framework to compare all-photonic and memory-equipped quantum switches, quantifying their rate-fidelity tradeoffs to demonstrate that architectural superiority depends on specific hardware parameters and application requirements.
This paper presents a quantum algorithm for approximate graph isomorphism testing based on MNRS quantum walk search that achieves a query complexity of , establishing a polynomial speedup over the classical lower bound.
This paper overcomes the limitations of standard unitary designs in arbitrary qudit dimensions by introducing weighted state designs and a Clifford character randomized benchmarking protocol, while also establishing circuit complexity bounds and proving that spin-GKP codewords form state 2-designs whereas spin coherent states do not.
This paper introduces Neural Quantum Support Vector Data Description (NQSVDD), a classical-quantum hybrid framework for one-class classification that integrates neural networks with variational quantum circuits to achieve superior anomaly detection performance with fewer parameters and robustness on noisy intermediate-scale quantum devices.
This paper proposes a hybrid quantum-classical scheme utilizing quantum dominant orbital selection (QDOS) and subspace dynamical correlation (SDC) to accurately evaluate molecular energies on fault-tolerant quantum computers while avoiding the computational bottleneck of extracting full wavefunction data.
This paper demonstrates that solutions to the Schrödinger equation on Lie groups obtained via the non-commutative integration method belong to the class of generalized coherent states when the corresponding -representation is real, while offering a generalization thereof when the polarization is complex.
This study revisits Cherepkov's theory of spin-resolved photoionization in chiral molecules to demonstrate that the ten independent parameters governing spin- and enantio-sensitive observables can be reduced to moments of three fundamental geometric pseudovectors arising solely from electric dipole interactions.