1134 papers
This paper constructs -symmetric conformal boundary states in the Wess-Zumino-Witten conformal field theory by embedding , identifies them as ground states of Affleck-Kennedy-Lieb-Tasaki spin chains within the integrable Uimin-Lai-Sutherland model, and analytically computes their boundary entropy using exact overlap formulas.
This paper demonstrates that while approximate decoherent histories emerge in both measurement and scrambling phases of a solvable quantum model, true classicality characterized by environment-induced decoherence and preferred pointer states is uniquely distinguished by the non-ergodicity and correlation with the measured qubit found only in the measurement apparatus phase.
This paper demonstrates that a driven-dissipative system coupling the Landau levels of a charge-neutral particle in a synthetic gauge potential to a quantized optical cavity can be effectively modeled as two highly nonlinearly coupled quantum harmonic oscillators, giving rise to hybrid "Landau polaritons" with unique entanglement, squeezing, and diverse nonequilibrium dynamics.
This paper demonstrates that time-dependent tuning of confining potentials in electron-on-helium systems enables fast, high-fidelity two-qubit gates (specifically and CZ) with minimal control-induced errors, providing a methodology to isolate these effects from environmental noise for future device design.
This paper demonstrates that Gaussian operations are sufficient to embezzlement arbitrary Gaussian entangled states from ground states of non-interacting critical fermions, establishing embezzlement as a generic property of fermionic Gaussian states and bridging finite-size systems with abstract von Neumann algebra classifications through novel distance bounds.
This paper investigates the relationship between two- and three-mode entanglement (quantified by negativities) and squeezing (described by principal squeeze variances) within a restricted three-qubit bosonic system, ultimately identifying specific entangled states that exhibit squeezing.
This paper extends the strong disorder renormalization group method to analyze excited states and finite temperature properties of bond-disordered antiferromagnetic quantum spin chains with both short-range and long-range power-law interactions, deriving key thermodynamic and entanglement characteristics while characterizing the distribution of coupling signs and amplitudes.
The authors propose a parallelizable simulated annealing decoder for the XZZX code under -biased noise that, when initialized by a randomized greedy matching decoder, achieves accuracy comparable to optimal solvers while offering competitive runtime potential for fault-tolerant quantum computation.
This paper presents efficient classical algorithms for the and Constrained Integer Solution problems previously solved by an efficient quantum algorithm, thereby demonstrating that no exponential quantum speedup exists for these tasks.
This paper derives analytic expressions to predict how the initial state influences the steady-state weights in multistable open quantum systems, enabling the design of dissipative schemes that generate robust, metrologically useful entangled states in spin ensembles without requiring dynamic integration.
This paper introduces measurement-dressed imaginary-time evolution (MDITE) as a novel framework for studying mixed-state phase transitions driven by the competition between coherence-restoring dynamics and decoherence, demonstrating the existence of new critical behaviors in one- and two-dimensional models that fall outside known universality classes.
This paper demonstrates that the Yao-Kivelson chiral spin liquid model supports compact localized states and non-Abelian Ising anyons without quasiparticle hybridization, offering a promising framework for quantum simulation of topologically ordered matter and flat-band physics.
By combining the energy resolution limits of quantum sensors with the human brain's metabolic power, this paper establishes a technology-independent fundamental bound of approximately 2.2 Mbit/s on the information capacity of magnetoencephalography, revealing an inherent spatio-temporal trade-off that limits the spatial complexity of detectable neural patterns.
This paper establishes a complete bulk-boundary correspondence and topological characterization for non-Hermitian nonlinear-eigenvalue systems by introducing an auxiliary system and generalized Brillouin zone, revealing a novel exotic complex-band topological phase that coexists with the real-band phase.
This paper introduces a scalable gradient-descent method for quantum detector tomography that achieves reconstruction fidelities comparable to or better than constrained convex optimization in significantly less time, while also proposing an extension to phase-sensitive detectors via complex Stiefel manifold parametrization.
This paper establishes a physically meaningful preorder for comparing quantum channels by demonstrating that one channel can be derived from another via a Hermitian-preserving trace-preserving (but not necessarily positive) linear map if their output statistics are distinguishable, thereby providing a framework to quantify implementation difficulty and analyze device incompatibility.
This paper presents a transformer-based algorithm that efficiently transpiles quantum circuits from QASM to IonQ's native gate sets with over 99.98% accuracy for up to five qubits, demonstrating polynomial scaling complexity suitable for training on high-performance computing infrastructures.
This paper introduces a novel framework for engineering persistent coherent oscillations in Markovian open quantum systems by utilizing block-diagonal Hamiltonian and jump operator structures to sustain non-zero dissipative dynamics, thereby extending beyond traditional decoherence-free subspace approaches.
This paper introduces a variational regularisation framework that combines Fisher information and flux closure to derive analytical solutions for the stationary de Broglie–Bohm wave equation, revealing a systematic inverse-square potential term and a geometric length scale that naturally reduces to the reduced Compton wavelength when the coupling parameter equals Planck's constant.
This study develops a rigorous, nonperturbative framework to quantify how mirror birefringence and polarization misalignment degrade sensitivity in axion-like particle searches, revealing that while misalignment effects can be mitigated through postselection, birefringence introduces a distinct high-mass resonance peak that necessitates careful consideration in high-precision optical-cavity experiments.