5886 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 GPU-accelerated semidefinite programming solver that enables the exploration of higher local dimensions in causal games, revealing that increasing the dimension beyond does not significantly improve the winning probability, thereby suggesting that current strategies are insufficient to close the gap with known upper bounds.
This paper presents a near-optimal, non-adaptive algorithm for learning local Lindbladians from black-box access that achieves channel uses and total evolution time using only random product states and Pauli measurements, while proving that these scaling limits are information-theoretically fundamental and preclude Heisenberg-limited performance in the presence of dissipation.
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 provides a complete characterization of the constraints on real and imaginary Bloch-type coordinates for finite-dimensional quantum states, revealing a surprising qualitative difference in the shape of state-space boundaries between even and odd dimensions.
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.
Using single-atom-resolved detection in an interacting lattice Bose gas, researchers experimentally mapped the full non-Gaussian probability distribution of the order parameter across a continuous phase transition, revealing critical scaling in high-order cumulants that aligns with quantum models rather than classical ones.