9165 papers
Quantum physics explores the strange and often counterintuitive rules that govern the universe at its smallest scales. This field investigates how particles like electrons and photons behave in ways that defy our everyday intuition, forming the backbone of modern technologies from lasers to future quantum computers. While the mathematics can be daunting, the core ideas promise to revolutionize how we understand reality and process information.
At Gist.Science, we make these complex discoveries accessible to everyone. We systematically process every new preprint published in the Quant-Ph category on arXiv, transforming dense academic papers into clear, plain-language explanations alongside detailed technical summaries. Whether you are a seasoned researcher or a curious reader, our goal is to bridge the gap between cutting-edge theory and human understanding.
Below are the latest papers in quantum physics, distilled to help you grasp the newest breakthroughs without getting lost in the jargon.
This paper investigates the decoherence of toric codes under generalized and squeezed amplitude-damping noise by mapping the system to classical statistical-mechanical spin models and deriving logical failure probabilities as functions of temperature and squeezing.
This paper demonstrates that in minimal-length quantum mechanics governed by the Generalized Uncertainty Principle, the standard equivalent characterizations of coherent states become inequivalent, leading to unique dynamical behaviors such as deformed phase-space trajectories and an intrinsic squeezing mechanism absent in ordinary quantum mechanics.
This paper presents a closed-loop calibration workflow utilizing echoed leakage error amplification and context-aware fidelity estimation to achieve a record-breaking CZ gate fidelity exceeding 99.9% with suppressed coherent errors on an 84-qubit domestic superconducting processor, demonstrating a scalable and automated path toward fault-tolerant quantum computing.
This paper investigates parent Hamiltonians for ergodic matrix product states (EMPS) defined by random tensors, demonstrating that under mild injectivity assumptions, these states serve as unique frustration-free ground states in the thermodynamic limit while establishing conditions for spectral gaps using the martingale method and illustrating scenarios where such gaps may or may not exist.
This paper derives a general formula for the Lamb shift of a static atom near a rotating planar surface, revealing that rotation induces two distinct contributions from orbital and spin angular momentum that modify the Casimir-Polder interaction and generate a finite linewidth signaling quantum friction.
This paper introduces a comprehensive validation framework that bridges quantum simulations, inelastic neutron scattering experiments, and classical many-body simulations by employing explicit observable mapping, uncertainty propagation, and robustness testing to quantitatively assess and improve the accuracy of quantum spin dynamics across different computational and experimental scales.
This paper introduces a pulsed all-optical protocol using nitrogen-vacancy ensembles that employs dual photoluminescence measurements to suppress common-mode noise, achieving up to a 10-fold improvement in low-frequency noise performance over conventional continuous-wave techniques while resolving NV-NV cross-relaxation features.
This paper presents the explicit construction of logarithmic-depth, spatially nonlocal unitary circuits that efficiently implement exact Kramers-Wannier dualities for arbitrary symmetries in one and two dimensions, providing a coherent pathway to transform short-range entangled states into long-range entangled duals on modern quantum platforms.
This paper introduces a two-mode coherent superposed quantum state generated by a specific operator, characterizes its nonclassical and non-Gaussian properties via Wigner distributions, and demonstrates its effectiveness as an entangled resource in continuous-variable quantum teleportation by achieving fidelities beyond the classical threshold in specific parameter regimes.
This paper establishes an upper bound on extractable work for non-Markovian quantum heat engines with finite baths, demonstrating that maximizing efficiency through coherent system-bath resonances requires quasi-static operation, whereas optimizing for power forces a finite-time regime where Trotterisation errors and interaction costs inevitably suppress quantum memory effects, confining these two operational goals to distinct, mutually exclusive regimes.