quant-ph papers | Gist.Science

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.

⚛️ quantum physics

Ergotropy from Geometric Phases in a Dephasing Qubit

This paper establishes a direct connection between geometric and dynamic phases and ergotropy in a dephasing qubit, demonstrating that while the dynamic phase reflects only incoherent energy, the geometric phase encodes the interplay of coherence and dissipation, ultimately converging to incoherent ergotropy in the weak-coupling limit and offering a pathway to infer energetic resources via phase measurements in superconducting circuits.

Fernando C. Lombardo, Paula I. Villar2026-03-03

⚛️ quantum physics

A high-performance quantum memory for quantum interconnects

This paper introduces a comprehensive "quantum interconnect rate" metric and demonstrates a high-performance quantum memory that simultaneously achieves large multimode capacity (11-dimensional spatial modes), high efficiency (>80%), and high fidelity (>99%), enabling the practical distribution of 3.56 bits of quantum information over a 1000-km link in one minute.

H. -X Luo, C. Li, J. -L. Ren, Y. Yuan, Y. -L. Wen, J. -F. Li, Y. -F. Wang, S. -C. Zhang, H. Yan, S. -L. Zhu2026-03-03

⚛️ quantum physics

Remote state preparation of single-partite high-dimensional states in complex Hilbert spaces

This paper proposes practical schemes for the remote state preparation of various high-dimensional equatorial states in complex Hilbert spaces using both maximally and non-maximally entangled channels, demonstrating their feasibility with current technology and suggesting spatial mode encoding to avoid collection operations.

Jun-Hai Zhao, Si-Qi Du, Wen-Qiang Liu, Dong-Hong Zhao, Hai-Rui Wei2026-03-03

⚛️ quantum physics

Generalized quantum master equation from memory kernel coupling theory

This paper introduces a comprehensive tensorial extension to the Memory Kernel Coupling Theory (MKCT) that overcomes challenges in evaluating memory kernels, enabling accurate and efficient simulation of non-Markovian dynamics across diverse open quantum systems including the spin-boson model, the Fenna-Matthews-Olson complex, and one-dimensional lattice models.

Rui-Hao Bi, Wei Liu, Wenjie Dou2026-03-03

⚛️ quantum physics

QuMeld: A Modular Framework for Benchmarking Qubit Mapping Algorithms

QuMeld is an open-source, modular framework designed to systematically benchmark and compare qubit mapping algorithms across diverse quantum computer topologies and circuits, addressing the current lack of a unified evaluation system.

Gabrielius Keibas, Linas Petkevičius2026-03-03

🔬 atomic physics

Sustaining high-fidelity quantum logic in neutral-atom circuits via mid-circuit operations

This paper demonstrates a sustainable neutral-atom quantum computing framework that maintains high-fidelity two-qubit gates (~99.8%) across deep, repetitive circuits by integrating mid-circuit operations, including non-destructive erasure detection and in-situ cooling, to actively manage motional heating and atom loss for continuous error correction.

Rui Lin, You Li, Le-Tian Zheng, Tai-Ran Hu, Si-Yuan Chen, Hong-Ming Wu, Yu-Chen Zhang, Hao-Wen Cheng, Yu-Hao Deng, Zhan (…)2026-03-03

⚛️ quantum physics

Shaping frequency-tunable single photons for quantum networking in waveguide QED

This paper presents a theoretical framework and numerical validation for shaping frequency-tunable single photons in superconducting waveguide QED networks, enabling deterministic quantum state transfer and remote entanglement generation between non-resonant, frequency-detuned nodes to overcome scalability limitations.

Álvaro Pernas, Álvaro Gómez-León, Ricardo Puebla2026-03-03

🔢 mathematics

Finite-Depth, Finite-Shot Guarantees for Constrained Quantum Optimization via Fejér Filtering

This paper establishes finite-depth and finite-shot, dimension-free lower bounds on the success probability of sampling optimal solutions for the Constraint-Enhanced Quantum Approximate Optimization Algorithm (CE-QAOA) by demonstrating that restricting cost angles to a harmonic lattice induces a positive Fejér filter effect.

Chinonso Onah, Kristel Michielsen2026-03-03

⚛️ quantum physics

Nature abhors macroscopic superpositions

This paper proposes that macroscopic mass distributions naturally resist forming superpositions because the entanglement with spacetime geometry creates an energy dip that generates an opposing force, thereby offering a potential resolution to the measurement problem.

Filippus S. Roux2026-03-03

⚛️ quantum physics

Local integrals of motion encoded in a few eigenstates

This paper demonstrates that local integrals of motion in the XXZ model can be accurately estimated from a vanishingly small fraction of eigenstates in the thermodynamic limit, a property that fundamentally distinguishes true integrability from Hilbert space fragmentation, which requires the majority of eigenstates for similar reconstruction.

J. Pawłowski, P. Łydżba, M. Mierzejewski2026-03-03

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