⚛️ Category

quant-ph

6677 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.

⚛️ quantum physics

Unveiling clean two-dimensional discrete time crystals on a digital quantum computer

Using IBM's 133-qubit Heron processor, researchers experimentally demonstrated the existence of a robust, clean two-dimensional discrete time crystal and an incommensurately modulated variant in a driven kicked Ising model, validating these non-equilibrium phenomena through comparison with classical simulations and highlighting the potential of gate-based quantum computers for studying complex many-body dynamics.

Kazuya Shinjo, Kazuhiro Seki, Tomonori Shirakawa, Rong-Yang Sun, Seiji Yunoki2026-03-13
🔬 optics

Ultrahigh free-electron Kerr nonlinearity in all-semiconductor waveguides for all-optical nonlinear modulation of mid-infrared light

This paper demonstrates that all-semiconductor waveguides leveraging longitudinal bulk plasmons in heavily doped semiconductors achieve ultrahigh free-electron Kerr nonlinearities exceeding 10710^7 W−1^{-1}km−1^{-1}, enabling efficient, ultrafast all-optical modulation of mid-infrared light for scalable photonic integrated circuits.

Gonzalo Álvarez-Pérez, Huatian Hu, Fangcheng Huang, Tadele Orbula Otomalo, Michele Ortolani, Cristian Ciracì2026-03-13
⚛️ quantum physics

Partial Quantum Shadow Tomography for Structured Operators and its Experimental Demonstration using NMR

This paper proposes and experimentally demonstrates a partial quantum shadow tomography protocol using NMR that efficiently estimates expectation values for structured observables by restricting measurements to specific Pauli subsets, achieving high-fidelity state reconstruction with lower experimental overhead than traditional methods.

Aniket Sengupta, Arijit Chatterjee, G. J. Sreejith, T. S. Mahesh2026-03-13
⚛️ lattice

Parton Distribution Functions in the Schwinger model from Tensor Network States

This paper proposes and demonstrates a method using tensor network states within the Hamiltonian formalism to accurately compute parton distribution functions for the vector meson in the massive Schwinger model directly in Minkowski space, thereby overcoming the limitations of Euclidean lattice calculations and offering a pathway for quantum simulations.

Mari Carmen Bañuls, Krzysztof Cichy, C. -J. David Lin, Manuel Schneider2026-03-13
⚛️ quantum physics

High-Fidelity Quantum Entanglement Distribution in Metropolitan Fiber Networks with Co-propagating Classical Traffic

This paper demonstrates the feasibility of large-scale quantum networking by successfully distributing high-fidelity polarization-entangled photon pairs over up to 100 km of Deutsche Telekom's metropolitan fiber infrastructure, where quantum signals at 1324 nm coexist with standard C-band classical traffic without requiring dedicated fibers or infrastructure changes.

Matheus Sena, Mael Flament, Shane Andrewski, Ioannis Caltzidis, Niccolò Bigagli, Thomas Rieser, Gabriel Bello Portmann (…)2026-03-13
🔬 mesoscale physics

Quantum Kinetic Uncertainty Relations in Mesoscopic Conductors at Strong Coupling

This paper introduces a generalized definition of dynamical activity valid at arbitrary system-reservoir coupling to derive a novel Quantum Kinetic Uncertainty Relation (QKUR) that accounts for quantum coherence and corrects the breakdown of standard relations in the strong-coupling regime of mesoscopic conductors.

Gianmichele Blasi, Ricard Ravell Rodríguez, Mykhailo Moskalets, Rosa López, Géraldine Haack2026-03-13