Supercurrents in Josephson junctions with chiral molecular potentials

该研究利用 Bogoliubov-de Gennes 紧束缚模型发现,虽然手性分子势对约瑟夫森结的平衡电荷电流影响甚微,但能诱导产生显著的手性依赖自旋超电流,从而确立了基于自旋极化输运的约瑟夫森干涉仪作为检测分子手性及开发超导自旋电子器件的有效平台。

Oleg Kuliashov, Alberto Cappellaro, Oded Millo, Yossi Paltiel, Mikhail Lemeshko, Ragheed Alhyder2026-03-12⚛️ quant-ph

Efficient construction of Z2\mathbb{Z}_2 gauge-invariant bases for the Quantum Minimally Entangled Typical Thermal States algorithm

该论文提出了一种针对Z2\mathbb{Z}_2规范约束系统的量子最小纠缠典型热态(QMETTS)算法,通过推导特定的测量基以在保持计算效率的同时严格维持规范不变性,并引入更高效的采样方法处理硬件噪声,从而成功在数值上复现了有限温度和有限密度下的平衡态。

Reita Maeno2026-03-12⚛️ hep-lat

Violating the All-or-Nothing Picture of Local Charges in Non-Hermitian Bosonic Chains

该论文通过构建具有特定局部守恒荷的非厄米玻色子链模型,打破了局部守恒荷“全有或全无”的普遍预期,证明了此类系统中可存在仅针对特定阶数(如 3 阶或除 4 阶外所有阶)的守恒荷,从而揭示了 Grabowski-Mathieu 可积性判据的局限性并给出了该系统中 k 阶局部守恒荷存在的充要条件及完整分类。

Mizuki Yamaguchi, Naoto Shiraishi2026-03-12🌀 nlin

Mitigating crosstalk errors for simultaneous single-qubit gates on a superconducting quantum processor

该研究通过在 49 量子比特超导处理器上结合基于模型的频率优化与新型“串扰跃迁抑制”脉冲整形技术,成功将同时单量子比特门操作的平均保真度提升至 99.96%,显著缓解了频率拥挤和串扰对扩展量子处理器规模的限制。

Jaap J. Wesdorp, Eric Hyyppä, Joona Andersson, Janos Adam, Rohit Beriwal, Ville Bergholm, Saga Dahl, Simone Diego Fasciati, Alejandro Gomez Friero, Zheming Gao, Daria Gusenkova, Andrew Guthrie, Johannes Heinsoo, Tuukka Hiltunen, Keiran Holland, Amin Hosseinkhani, Sinan Inel, Joni Ikonen, Shan W. Jolin, Kristinn Juliusson, Seung-Goo Kim, Anton Komlev, Roope Kokkoniemi, Otto Koskinen, Joonas Kylmälä, Alessandro Landra, Julia Lamprich, Magdalena Lehmuskoski, Nizar Lethif, Per Liebermann, Tianyi Li, Aleksi Lintunen, Fabian Marxer, Kunal Mitra, Jakub Mro\.zek, Lucas Ortega, Miha Papič, Matti Partanen, Alexander Plyushch, Stefan Pogorzalek, Michael Renger, Jussi Ritvas, Sampo Saarinen, Indrajeet Sagar, Matthew Sarsby, Mykhailo Savytskyi, Ville Selinmaa, Ivan Takmakov, Brian Tarasinski, Francesca Tosto, David Vasey, Panu Vesanen, Jeroen Verjauw, Alpo Välimaa, Nicola Wurz, Hsiang-Sheng Ku, Frank Deppe, Juha Hassel, Caspar Ockeloen-Korppi, Wei Liu, Jani Tuorila, Chun Fai Chan, Attila Geresdi, Antti Vepsäläinen2026-03-12⚛️ quant-ph

Realizing the Emery Model in Optical Lattices for Quantum Simulation of Cuprates and Nickelates

该论文提出了一种利用超冷原子量子模拟平台在二维光晶格中实现铜氧化物和镍酸盐相关物理参数的 Emery 模型(三带模型)的方案,旨在通过超越当前数值方法计算能力的系统规模,深入探索高温超导的微观机制。

Hannah Lange, Liyang Qiu, Robin Groth, Andreas von Haaren, Luca Muscarella, Titus Franz, Immanuel Bloch, Fabian Grusdt, Philipp M. Preiss, Annabelle Bohrdt2026-03-12🔬 physics.atom-ph

Quantum state tomography, entanglement detection and Bell violation prospects in weak decays of massive particles

该论文提出了一种基于布洛赫参数化和 Wigner/Weyl 变换的通用方法,用于从角衰变数据中重构多粒子系统的自旋密度矩阵,并展示了该方法在大型强子对撞机(LHC)及希格斯玻色子衰变等双粒子系统模拟中用于检测量子纠缠和验证贝尔不等式违反的可行性。

Rachel Ashby-Pickering, Alan J. Barr, Agnieszka Wierzchucka2026-03-11⚛️ quant-ph