cond-mat.str-el 篇论文

Symmetric $\mathrm{U(1)}$ and $\mathbb{Z}_2$ spin liquids on the pyrochlore lattice

本文利用投影对称群框架，对保持空间群对称性的三维烧绿石晶格费米子自旋子进行了完整分类，发现了多种对称性保护的 $\mathrm{U(1)}$ 和 $\mathbb{Z}_2$ 自旋液体态，并特别提出了一种具有受保护的“节点星”能带结构的 $\mathrm{U(1)}$ 自旋液体，其低温比热表现出独特的 $\sqrt{T}$ 标度行为。

Chunxiao Liu, Gábor B. Halász, Leon BalentsWed, 11 Ma🔬 cond-mat

Nonlocal Andreev transport through a quantum dot in a magnetic field: Interplay between Kondo, Zeeman, and Cooper-pair correlations

该研究通过费米液体理论导出的多体光学定理和 Wilson 数值重正化群方法，系统揭示了在强关联量子点连接正常与超导引线的非局域输运中，Kondo 效应、塞曼分裂与库珀对关联的相互作用机制，并发现零温下交叉安德烈夫反射在 Kondo 态与超导近邻主导态的交叉区域及特定塞曼主导区得到显著增强。

Masashi Hashimoto, Yasuhiro Yamada, Yoichi Tanaka, Yoshimichi Teratani, Takuro Kemi, Norio Kawakami, Akira OguriWed, 11 Ma🔬 cond-mat.mes-hall

Exact Calculations of Coherent Information for Toric Codes under Decoherence: Identifying the Fundamental Error Threshold

本文首次给出了退相干环面码相干信息的精确解析表达式，从而在理论上严格建立了基本误差阈值与随机键伊辛模型临界性之间的直接联系。

Jong Yeon LeeWed, 11 Ma⚛️ quant-ph

Effect of Pressure and Oxygen-Isotope Substitution on Density-Wave Transitions in La $_4$ Ni $_3$ O $_{10}$

该研究通过μSR 和电阻率测量，揭示了 La $_4$ Ni $_3$ O $_{10}$ 中自旋密度波（SDW）与电荷密度波（CDW）的紧密耦合机制，发现压力抑制了所有相变温度，而氧同位素取代仅在 CDW 与 SDW 纠缠时显著影响 SDW 转变温度，表明晶格效应在纠缠态中起关键作用。

Rustem Khasanov, Vahid Sazgari, Thomas J. Hicken, Igor Plokhikh, Marisa Medarde, Ekaterina Pomjakushina, Lukas Keller, Vladimir Pomjakushin, Marek Bartkowiak, Szymon Królak, Michał J. Winiarski, Alexander Steppke, Jonas A. Krieger, Hubertus Luetkens, Tomasz Klimczuk, Christof W. Schneider, Dariusz J. Gawryluk, Zurab GuguchiaWed, 11 Ma🔬 cond-mat

Oxygen-isotope effect on density wave transitions in La $_3$ Ni $_2$ O $_{7}$

该研究通过氧同位素取代实验发现，La $_3$ Ni $_2$ O $_7$ 中的电荷密度波转变温度随 $^{18}$ O取代而升高，而自旋密度波转变温度不受影响，表明电荷序的形成强烈依赖于晶格振动（电子 - 声子耦合），而自旋序主要源于电子关联，这一发现暗示电子 - 声子耦合可能在镍酸盐超导配对机制中起关键作用。

Rustem Khasanov, Vahid Sazgari, Igor Plokhikh, Lifen Shi, KeYuan Ma, Marisa Medarde, Ekaterina Pomjakushina, Tomasz Klimczuk, Thomas J. Hicken, Hubertus Luetkens, Christof W. Schneieder, Zurab Guguchia, Sergey Medvedev, Dariusz J. GawrylukWed, 11 Ma🔬 cond-mat

Exact downfolding and its perturbative approximation

该论文提出了一个严格的下折叠（downfolding）形式体系，通过显式积分掉高能自由度来推导任意目标空间中的精确有效模型，并在此基础上论证了微扰截断的适用条件、从第一性原理推导了约束随机相位近似（cRPA）及其修正项，同时通过镍和铜氧化物等材料实例展示了该方法在构建可控有效模型及评估目标空间适用性方面的价值。

Jonas B. Profe, Jakša Vučičevic, P. Peter Stavropoulos, Malte Rösner, Roser Valentí, Lennart KleblWed, 11 Ma🔬 cond-mat.mtrl-sci

Incommensurate Twisted Bilayer Graphene: emerging quasi-periodicity and stability

该论文通过结合重整化群分析与数论方法，证明了在非公度扭转角（满足特定 Diophantine 条件的分形集）下，尽管存在通常被忽略的大动量转移 Umklapp 项，非公度扭转双层石墨烯的半金属相在有限层间耦合下依然保持稳定，从而为忽略此类项的有效连续介质描述提供了理论依据。

Ian Jauslin, Vieri MastropietroWed, 11 Ma🔢 math-ph

Phase diagrams of S=1/2 bilayer Models of SU(2) symmetric antiferromagnets

本文研究了具有 SU(2) 对称性的 $S=1/2$ 双层反铁磁模型在零温下的相图，对比了层间仅交换能量（类 Ashkin-Teller 耦合）与同时交换自旋和能量两种情形，揭示了前者无法形成简单二聚体态且两者在 Néel-VBS 相变及 VBS-二聚体相变中展现出截然不同的有限尺寸标度行为与相变特征。

Fan Zhang, Nisheeta Desai, Wenan Guo, Ribhu K. KaulWed, 11 Ma🔬 cond-mat

Tensor-network methodology for super-moiré excitons beyond one billion sites

该论文提出了一种结合张量网络编码与切比雪夫算法的实空间方法，成功突破了传统计算限制，实现了对包含超过十亿个格点（希尔伯特空间维度达$10^{18}$）的准晶和超莫尔激子体系光谱的直接计算，从而能够同时解析原子尺度与介观尺度的激子物理特性。

Anouar Moustaj, Yitao Sun, Tiago V. C. Antão, Lumen Eek, Jose L. LadoWed, 11 Ma⚛️ quant-ph

Qubit discretizations of d=3 conformal field theories

该论文提出了一种利用近中期量子模拟平台上的量子比特系统，通过在多面体晶格上优化耦合来研究三维共形场论标度维度的方案，并在 20 个量子比特的伊辛模型中成功以百分之几的精度提取了标度算符的标度维数，展示了量子模拟解决经典计算机难以处理的三维共形场论问题的潜力。

Hansen S. Wu, Ribhu K. KaulWed, 11 Ma⚛️ quant-ph

Boundary critical behavior of the Gross-Neveu-Yukawa model

本文研究了半无限 Gross-Neveu-Yukawa 模型的边界临界行为，在满足幺正性、共形不变性和电荷共轭对称性的最一般费米子边界条件下，分析了相图并识别出不同的边界临界普适类，同时计算了一阶单圈下的边界临界指数。

Andrei A. Fedorenko, Ilya A. GruzbergWed, 11 Ma🔬 cond-mat

Revisiting the $J_1$ - $J_2$ Heisenberg Model on a Triangular Lattice: Quasi-Degenerate Ground States and Phase Competition

该研究通过先进的矩阵乘积态模拟发现，三角晶格 $J_1$ - $J_2$ 海森堡模型在 $J_2/J_1=0.125$ 处的两个准简并基态在静态关联和动力学激发上存在显著差异，表明它们并非仅仅是拓扑不同的 $\mathbb{Z}_2$ 量子自旋液体扇区。

Oleksandra Kovalska, Ester Pagès Fontanella, Benedikt Schneider, Hong-Hao Tu, Jan von DelftWed, 11 Ma🔬 cond-mat

Thermal Hall conductivity from semiclassical spin dynamics simulations: implementation and applications to chiral ferromagnets and Kitaev magnets

该论文通过构建基于线性响应理论的半经典自旋动力学模拟框架，详细阐述了如何从实时能量流关联和能量磁化计算热霍尔电导，并将其应用于手性铁磁体和Kitaev反铁磁体模型，证明了该方法能有效捕捉磁子相互作用及强热涨落引起的非线性效应，为相关实验提供了重要的基准。

Ignacio Salgado-Linares, Alexander Mook, Léo Mangeolle, Johannes KnolleWed, 11 Ma🔬 cond-mat.mes-hall

Introduction to Generalized Symmetries

这篇为日本多所大学讲座准备的讲义，从高阶对称性、反常和离散规范理论出发，系统介绍了 $(1+1)$ 维和 $(3+1)$ 维系统中的非可逆对称性及其物理应用，并阐述了融合范畴的基本结构，且无需读者具备共形场论或晶格模型的先验知识。

Justin KaidiWed, 11 Ma⚛️ hep-th

Intrinsic magnetization of the superconducting condensate in Fe(Te,Se)

该研究通过观测 Fe(Te,Se) 介观环中内禀磁场随直流偏置电流的线性标度及磁电阻的双重磁通量子化效应，证实了自旋极化超导凝聚体的存在，并为超导自旋电子学和量子信息应用开辟了新途径。

Mohammad Javadi Balakan, Shiva Heidari, Genda Gu, Qiang Li, Kenji Watanabe, Takashi Taniguchi, Ji Ung LeeWed, 11 Ma🔬 cond-mat.mes-hall

Proximate Spin Liquid Ground State Arising from Competing Stripy and 120 $^{\circ}$ Spin Correlations in the Triangular Quantum Antiferromagnet ErMgGaO $_4$

该研究通过非弹性中子散射发现，三角晶格量子反铁磁体 ErMgGaO $_4$ 在低温下表现出自旋玻璃态，其低能激发谱呈现连续谱特征，且理论拟合参数表明其处于条纹序与量子自旋液体相之间的临界区域，暗示其基态可能为近邻量子自旋液体。

S. H. -Y. Huang, S. Petit, Bo Yuan, Z. W. Cronkwright, C. Pinvidic, Y. Wang, E. M. Smith, S. Bhattacharya, C. Yang, J. -M. Zanotti, Q. Berrod, M. B. Stone, A. I. Kolesnikov, R. J. Cava, E. Kermarrec, B. D. GaulinWed, 11 Ma🔬 cond-mat

cond-mat.str-el

Symmetric $\mathrm{U(1)}$ and $\mathbb{Z}_2$ spin liquids on the pyrochlore lattice

Nonlocal Andreev transport through a quantum dot in a magnetic field: Interplay between Kondo, Zeeman, and Cooper-pair correlations

Exact Calculations of Coherent Information for Toric Codes under Decoherence: Identifying the Fundamental Error Threshold

Effect of Pressure and Oxygen-Isotope Substitution on Density-Wave Transitions in La $_4$ Ni $_3$ O $_{10}$

Oxygen-isotope effect on density wave transitions in La $_3$ Ni $_2$ O $_{7}$

Exact downfolding and its perturbative approximation

Incommensurate Twisted Bilayer Graphene: emerging quasi-periodicity and stability

Phase diagrams of S=1/2 bilayer Models of SU(2) symmetric antiferromagnets

Tensor-network methodology for super-moiré excitons beyond one billion sites

Qubit discretizations of d=3 conformal field theories

Boundary critical behavior of the Gross-Neveu-Yukawa model

Revisiting the $J_1$ - $J_2$ Heisenberg Model on a Triangular Lattice: Quasi-Degenerate Ground States and Phase Competition

Thermal Hall conductivity from semiclassical spin dynamics simulations: implementation and applications to chiral ferromagnets and Kitaev magnets

Introduction to Generalized Symmetries

Intrinsic magnetization of the superconducting condensate in Fe(Te,Se)

Proximate Spin Liquid Ground State Arising from Competing Stripy and 120 $^{\circ}$ Spin Correlations in the Triangular Quantum Antiferromagnet ErMgGaO $_4$

Hydrodynamics as cospans of field theories into the BF theory

Orbital-Zeeman cross correlation in $p$ - and $d$ -wave altermagnets

Polaron effects on the information backflow in Jaynes-Cummings model

Interplay of Rashba spin-orbit coupling and Coulomb interaction in topological spin-triplet excitonic condensates

cond-mat.str-el

Symmetric U(1)\mathrm{U(1)}U(1) and Z2\mathbb{Z}_2Z2​ spin liquids on the pyrochlore lattice

Nonlocal Andreev transport through a quantum dot in a magnetic field: Interplay between Kondo, Zeeman, and Cooper-pair correlations

Exact Calculations of Coherent Information for Toric Codes under Decoherence: Identifying the Fundamental Error Threshold

Effect of Pressure and Oxygen-Isotope Substitution on Density-Wave Transitions in La4_44​Ni3_33​O10_{10}10​

Oxygen-isotope effect on density wave transitions in La3_33​Ni2_22​O7_{7}7​

Exact downfolding and its perturbative approximation

Incommensurate Twisted Bilayer Graphene: emerging quasi-periodicity and stability

Phase diagrams of S=1/2 bilayer Models of SU(2) symmetric antiferromagnets

Tensor-network methodology for super-moiré excitons beyond one billion sites

Qubit discretizations of d=3 conformal field theories

Boundary critical behavior of the Gross-Neveu-Yukawa model

Revisiting the J1J_1J1​-J2J_2J2​ Heisenberg Model on a Triangular Lattice: Quasi-Degenerate Ground States and Phase Competition

Thermal Hall conductivity from semiclassical spin dynamics simulations: implementation and applications to chiral ferromagnets and Kitaev magnets

Introduction to Generalized Symmetries

Intrinsic magnetization of the superconducting condensate in Fe(Te,Se)

Proximate Spin Liquid Ground State Arising from Competing Stripy and 120∘^{\circ}∘ Spin Correlations in the Triangular Quantum Antiferromagnet ErMgGaO4_44​

Hydrodynamics as cospans of field theories into the BF theory

Orbital-Zeeman cross correlation in ppp- and ddd-wave altermagnets

Polaron effects on the information backflow in Jaynes-Cummings model

Interplay of Rashba spin-orbit coupling and Coulomb interaction in topological spin-triplet excitonic condensates

Symmetric $\mathrm{U(1)}$ and $\mathbb{Z}_2$ spin liquids on the pyrochlore lattice

Effect of Pressure and Oxygen-Isotope Substitution on Density-Wave Transitions in La $_4$ Ni $_3$ O $_{10}$

Oxygen-isotope effect on density wave transitions in La $_3$ Ni $_2$ O $_{7}$

Revisiting the $J_1$ - $J_2$ Heisenberg Model on a Triangular Lattice: Quasi-Degenerate Ground States and Phase Competition

Proximate Spin Liquid Ground State Arising from Competing Stripy and 120 $^{\circ}$ Spin Correlations in the Triangular Quantum Antiferromagnet ErMgGaO $_4$

Orbital-Zeeman cross correlation in $p$ - and $d$ -wave altermagnets