9259 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 presents a one-sided device-independent QKD protocol that achieves security against coherent attacks with detection efficiencies above 50.1% on the untrusted side, enabling long-distance implementation comparable to standard QKD by placing the state source near the untrusted device.
This paper presents a composable, finite-size secure continuous-variable quantum key distribution system using discrete modulation and polarization encoding over urban atmospheric channels, validated by a laboratory demonstration that calculates key rates against collective attacks without Gaussian assumptions.
This paper develops a theoretical framework for the error convergence of the stitching approximation in Green's function calculations via the Lanczos algorithm, demonstrating that the convergence rate depends on the decay of subleading Lanczos coefficients and the smoothness of the spectral function, while also deriving a formula linking the spectral function at the origin to continued fraction coefficients to estimate the diffusion constant in the mixed-field Ising model.
This paper reports the experimental violation of Bell inequality using unentangled four-photon states, demonstrating that quantum indistinguishability arising from path identity and frustrated interference can generate non-local correlations typically associated with entanglement.
This paper proposes a novel quantum blockchain architecture that integrates temporal GHZ entanglement with phase encoding to combine the tamper sensitivity of time-entangled states with the scalability and efficiency of quantum hypergraph structures, thereby offering a unified framework for secure and scalable quantum data storage.
This paper presents a scalable method for encoding genomic data, specifically the bacteriophage genome, into quantum states using Matrix Product States, demonstrating the trade-offs between circuit complexity and reconstruction error while validating the approach on both high-performance computing systems and current quantum hardware.
This paper presents the first experimental measurement of Quantum First-Passage-Time Distributions (QFPTDs) using a single trapped ion, achieved through a novel composite-phase laser pulse sequence that enables tunable stroboscopic projective measurements and opens new avenues for exploring quantum dynamics and measurement problems.
This paper evaluates the Sample-based Krylov Quantum Diagonalization (SKQD) algorithm on one- and two-dimensional Heisenberg models, demonstrating its ability to accurately reproduce ground-state properties and magnetization curves across various regimes through both classical benchmarks and successful implementation on 18- and 30-qubit quantum hardware.
This paper resolves the fundamental trade-off between signal sensitivity and noise protection in quantum metrology by introducing asymmetric quantum error correction codes that relax protection along the signal direction while maintaining robustness against errors in complementary directions, thereby restoring Heisenberg-limited precision with scalable, sparse, and tunable resources.
This paper proves that massive Dirac particles in one dimension, guided by a Gaussian wave packet, exhibit trajectories with constant asymptotic momentum and energy determined by their initial position, utilizing the stationary phase approximation to demonstrate that negative-energy particles travel in the opposite direction of their momentum.