⚛️ Category

quant-ph

8792 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.

🔬 condensed matter

Emergent hydrodynamic response and dynamical backreaction: Magnon bound-state propagation in a Bose-Hubbard fluid

This paper investigates the nonequilibrium hydrodynamic response of a one-dimensional Bose-Hubbard fluid to a propagating two-magnon bound state, demonstrating through matrix-product-state simulations that the coupling induces a dynamical backreaction which slows the bound state and generates distinct density wave patterns depending on whether the system is in the Mott or compressible regime.

Andrés N. Cáliz, Arnau Riera, Enrique Rico, João Barata, Marcin Pł odzień2026-09-01
⚛️ lattice

Quantum Simulations of Two-Dimensional Non-Abelian Adjoint String Breaking

This paper presents a quantum simulation of adjoint string breaking in a truncated SU(2) lattice gauge theory on an 8x8 and 16x8 triangular lattice using all 156 qubits of the ibm_boston device, achieving quantitative agreement with tensor network results and identifying non-Abelian signatures in oscillation rates and glueball production.

Anthony N. Ciavarella, Roland de Putter, Ed Younis, Ermal Rrapaj2026-09-01
⚛️ quantum physics

BAHAMAS: A Control Plane for Optimization and Execution of Variational Quantum Circuits

The paper introduces BAHAMAS, an online control framework that stabilizes variational quantum algorithm optimization by adaptively selecting physical qubit mappings through consensus-based fidelity estimation, thereby mitigating the effects of temporal noise drift and static mapping distortions without requiring simulators or offline training.

Amit Samanta, Mohammad Abrarul Hasanat, Jason Ludmir, Ryan Stutsman, Tirthak Patel, Rohan Basu Roy2026-09-01
🔬 physics

A priori Assessment of Tensor-Network Encoding for Isotropic Turbulent Flows

This paper demonstrates that the matrix product state (MPS) tensor network ansatz can effectively compress isotropic turbulent flow data from direct numerical simulations, achieving 99.8% reconstruction fidelity with only 5–15% of the original memory while accurately preserving key statistical properties like kinetic energy and dissipation rates.

Massen Esmaeili, Hirad Alipanah, Robert Pinkston, Peyman Givi, Daniel Livescu, Andrew J. Daley, Dieter Jaksch, Juan José (…)2026-09-01
⚛️ quantum physics

Eigenvalues of multipartite entanglement witnesses

This paper investigates the spectral properties of multipartite block-positive operators and entanglement witnesses, providing a necessary and sufficient condition for constructing specific decomposable witnesses from GHZ states, explicitly characterizing eigenvalue bounds and trace properties for multipartite decomposable witnesses, and deriving results on non-decomposable witnesses and 2×n2 \times n systems with physical implications.

Nalan Wang, Lin Chen2026-09-01
⚛️ quantum physics

Quantum discord of Gaussian states in non-inertial frames

This paper investigates how the Unruh effect redistributes continuous-variable Gaussian quantum discord among Rindler mode pairs for one and two accelerated observers, revealing that while accessible correlations decay with acceleration, the total correlation is preserved through generation in causally disconnected regions, with the specific redistribution dynamics governed by the interplay of squeezing parameters and field frequencies.

Siwei Li, Xiaofen Huang2026-09-01
⚛️ quantum physics

Fully integrated continuous-variable quantum key distribution with composable security over 100 km

This paper presents a fully integrated continuous-variable quantum key distribution platform using hybrid III-V/Si3_3N4_4 lasers and silicon components that achieves composable security over 100 km with a secret-key rate of 29.3 kbps, marking a significant advancement in practical, chip-based quantum networks.

Yankai Xu, Xinhang Li, Tao Wang, Jisheng Dai, Xueqin Jiang, Yuyao Guo, Peng Huang, Linjie Zhou, Guihua Zeng2026-09-01