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.

🔬 optics

Quantum heat transport in nonequilibrium anisotropic Dicke model

This paper investigates heat transport in a nonequilibrium anisotropic Dicke model using a quantum dressed master equation, revealing that anisotropic qubit-photon interactions critically modulate steady-state heat flow by suppressing it under strong coupling while enhancing it under moderate coupling, with effects amplified by the number of qubits and analyzed through both numerical simulations and analytical thermodynamic limits.

Kong Junran, Mao Mang, Liu Huan, Wang Chen2026-04-01

⚛️ quantum physics

Calculating the quantum Fisher information via the truncated Wigner method

This paper proposes a method to efficiently compute the quantum Fisher information for a broad class of quantum systems using the Truncated Wigner Approximation, thereby extending sensitivity analysis capabilities beyond the limitations of traditional methods like the method of moments.

Thakur G. M. Hiranandani, Joseph J. Hope, Simon A. Haine2026-04-01

🔬 condensed matter

Generation of dipolar supersolids through a barrier sweep in droplet lattices

This paper proposes and analyzes a dynamical protocol using a sweeping repulsive barrier to transform an incoherent array of dipolar quantum droplets into a coherent supersolid state, characterized by a persistent superfluid background and synchronized crystal oscillations.

E. L. Brakensiek, G. A. Bougas, S. I. Mistakidis2026-04-01

⚛️ quantum physics

Direct measurement of the energy spectrum of a quantum dot qubit

This paper introduces delta-axis spectroscopy (DAXS), a Hamiltonian-agnostic technique that enables the direct measurement of the full energy spectrum of a Si/SiGe double quantum dot across a wide detuning range, allowing for the precise extraction of diagonal and off-diagonal couplings in a 15-level Hubbard-like Hamiltonian.

J. Reily, Daniel J. King, Jonathan C. Marcks, M. A. Wolfe, Piotr Marciniec, E. S. Joseph, Tyler J. Kovach, Brighton X. C (…)2026-04-01

⚛️ quantum physics

From Promises to Totality: A Framework for Ruling Out Quantum Speedups

This paper introduces a general framework for ruling out superpolynomial quantum query speedups by analyzing the relationship between promise-aware combinatorial measures and the complexity of total function completions, providing sharp characterizations for structured promise families and broad non-speedup criteria for functions with well-behaved completions.

Thomas Huffstutler, Upendra Kapshikar, David Miloschewsky, Supartha Podder2026-04-01

⚛️ quantum physics

On the Entanglement Entropy Distribution of a Hybrid Quantum Circuit

This paper investigates the entanglement entropy distribution in hybrid quantum circuits, demonstrating that higher-order statistical moments serve as robust diagnostics for measurement-induced phase transitions and proposing a phenomenological model that accurately describes the system across both volume-law and area-law phases.

Jeonghyeok Park, Hyukjoon Kwon, Hyeonseok Jeong2026-04-01

⚛️ quantum physics

Multipartite controlled-NOT gates using molecules and Rydberg atoms

This paper proposes a high-fidelity, scalable hybrid architecture combining polar molecules and Rydberg atoms to implement robust multipartite controlled-NOT gates with fidelities exceeding 99%, leveraging the system's rich internal structure and strong dipole-dipole interactions for advanced quantum information processing.

Yi-Han Bai, Yue Wei, Chi Zhang, Weibin Li, Xiao-Qiang Shao2026-04-01

⚛️ quantum physics

PAEMS: Precise and Adaptive Error Model for Superconducting Quantum Processors

This paper introduces PAEMS, a precise and adaptive qubit error model that overcomes the limitations of existing depolarizing and density matrix approaches by utilizing a qubit-wise separation framework with leakage propagation and end-to-end optimization, achieving significantly reduced error correlations and superior accuracy across multiple superconducting quantum platforms compared to prior works and Google's SI1000 model.

Songhuan He, Yifei Cui, Cheng Wang2026-04-01

⚛️ quantum physics

Junction-Intrinsic Dissipation in Hybrid Superconductor-Semiconductor Gatemon Qubits

By co-fabricating hybrid gatemon and standard SIS transmon qubits with identical circuit layouts, researchers demonstrate that gatemon relaxation times are limited by an order of magnitude more than theoretical predictions due to an unidentified, temperature-independent, junction-intrinsic dissipation mechanism rather than external circuit losses or quasiparticle effects.

Zhenhai Sun, David Feldstein-Bofill, Ksenia Shagalov, Amalie T. J. Paulsen, Casper Wied, Shikhar Singh, Brian D. Isakov (…)2026-04-01

🔬 physics

Quantum Sensing with Triplet Pair States: A Theoretical Study

This theoretical study demonstrates that photoexcited pentacene dimers, utilizing spin-polarized quintet states generated via singlet fission, offer a superior interaction cross-section for detecting small ensembles of nuclear spins compared to traditional pentacene monomers, thereby establishing a baseline for high-sensitivity, chemically tunable molecular quantum sensors.

Maria Grazia Concilio, Yiwen Wang, Siyuan Wang, Xueqian Kong2026-04-01

← Previous Next →