964 papers
This paper proposes using an anti-squeezing transformation on a weakly coupled, two-photon driven Jaynes-Cummings model to effectively simulate the deep-strong coupling regime of the quantum Rabi model, thereby enabling the experimental exploration of its chaotic dynamics without requiring intrinsic ultra-strong light-matter coupling.
This paper investigates the topological phase transitions of a deformed toric code by mapping its wavefunction norm to classical partition functions, revealing a rich phase diagram with three distinct phases separated by critical lines characterized by and parafermion conformal field theories, as well as isolated critical points exhibiting Hilbert space fragmentation and quantum many-body scars.
This paper reviews the essential metrology and precision-measurement capabilities needed to support the industrialization and standardization of diverse quantum computing hardware, highlighting how established measurement frameworks can enable the reliable development and operation of emerging quantum technologies.
This paper demonstrates that gallium-based liquid-metal interconnects enable high-performance, non-destructive, and reconfigurable modular superconducting quantum circuits by maintaining microwave quality across thermal cycles and module replacements while revealing specific kinetic inductance and power-dependent loss characteristics.
This paper investigates the quantum dynamics of two repulsively interacting particles confined to a helix, revealing how the helix's geometry creates a tunable multi-well potential that governs complex wave packet scattering patterns, including beats and pulsed emissions.
This paper analyzes the phase-space features of a Toda-like Hamiltonian constrained by specific conditions to demonstrate that it not only analytically reproduces classical Lotka-Volterra prey-predator dynamics but also exhibits quantum stability through non-perturbative distortions, thereby establishing a predictive framework for quantized competitive biosystems.
This paper presents a method for constructing strongly nonlocal unextendible biseparable bases in four-qudit systems with local dimension , thereby generating genuinely entangled subspaces that exhibit distillable entanglement across all bipartitions.
This paper presents an experimental demonstration of an optimal projective measurement scheme for unambiguously discriminating multiple asymmetric qudit states using photonic orbital angular momentum, overcoming previous limitations that focused primarily on symmetric states.
This paper argues that while statistical violations of Bell's inequalities do not prove quantum nonlocality, a distinct form of nonlocality exists in detection outcome series as a counterfactual consequence of relativistic covariance, which can be modeled via contextual instructions and computer simulations without contradicting relativity.
This paper introduces RALLY methods, which utilize parametrized pulse sequences composed of random constant-amplitude pulses grouped into layers to achieve exponential convergence to the Haar-random ensemble, thereby enabling quantum optimal control with an information-theoretic minimum of optimization parameters that significantly outperforms existing algorithms.
This paper establishes the existence of an uncloneable bit by proving the unconditional security of a quantum encryption scheme that prevents two non-communicating adversaries from simultaneously decrypting a single ciphertext, even when both possess the key, relying solely on fundamental quantum principles like the monogamy of entanglement without any computational assumptions.
This paper presents a parallel, GPU-accelerated iQCC method that overcomes classical emulation bottlenecks to simulate 100–124 qubit ruthenium catalysts with superior accuracy to classical benchmarks, effectively pushing the threshold for genuine quantum advantage in chemistry beyond 200 qubits.
This paper proposes and theoretically analyzes a hyper-entangled SU(1,1) interferometer scheme that utilizes crossed-polarization nonlinear media to detect minute birefringence with a sensitivity enhancement of 3–15 dB beyond the classical shot-noise limit, even under realistic conditions of gain and internal loss.
This paper establishes that circle graph states are closed under local unitary equivalence, demonstrates their correspondence to planar code states to prove the classical simulability of measurement-based quantum computation on them, and shows that counting LU-equivalent graph states is -hard.
This paper investigates the interplay between temporal localization and causality across different quantum reference frames, demonstrating that a consistent operational notion of causality across multiple clocks requires modeling interventions within the constraint equation, a framework that naturally accommodates temporal delocalization and indefinite causal order.
This paper extends the study of quantum non-stabilizerness to time-dependent drivings across quantum phase transitions, demonstrating that stabilizer Rényi entropies and Pauli spectrum cumulants exhibit universal power-law scaling with driving rates and that the Pauli spectrum follows a lognormal distribution, as validated by exact and analytical results in the transverse-field Ising and long-range Kitaev models.
This paper introduces a large language model (LLM) framework that automates the control and measurement of superconducting qubits by dynamically generating and invoking tools based on a knowledge base, thereby enabling rapid deployment of standard protocols and the flexible implementation of novel experimental procedures.
This paper presents a quantum numerical scheme for solving anisotropic diffusion and convection equations that utilizes vector-norm analysis to achieve an exponential reduction in the required number of time-steps compared to previous operator-norm bounds.
This paper proposes an efficient training procedure for photon-native quantum generative models using maximum mean discrepancy, leveraging the ability to classically simulate intermediate-complexity circuits for training while requiring quantum hardware for the final boson sampling deployment.
This paper demonstrates a method for measuring coincidences between polarization-entangled photons at distant locations by utilizing compact, chip-scale atomic clocks to eliminate the need for conventional synchronization protocols.