In this work, we study the scaling relation of energy and length scales in the 2D random-singlet (RS) state of the random $Q$ model. To investigate the intrinsic energy scale of the spinon subsystem arising from the model, we develop a constrained subspace update algorithm within the framework of the stochastic series expansion method (SSE) to extract the singlet-triplet gap of the system. The 2D RS state exhibits scaling behavior similar to the infinite randomness fixed point (IRFP), at least within the length scales that we simulate. Furthermore, by rescaling the system size according to the strength of randomness, we observe that the data for the excitation gap and the width of the gap distribution collapse onto a single curve. This implies that the model with different strengths of randomness may correspond to the same fixed point.
Squeezing dynamical singlets in bilayer nickelates
Center for Computational Quantum Physics, Flatiron Institute（Flatiron研究所计算量子物理中心）；Department of Physics, Columbia University（哥伦比亚大学物理系）；Université Paris-Saclay, CNRS, CEA, Institut de physique théorique（巴黎萨克雷大学、法国国家科学研究中心、法国原子能和替代能源委员会、理论物理研究所）
Kondo scaling of $4f$-electron states and the Kondo singlet breakdown in heavy fermions
Helmholtz-Zentrum Berlin für Materialien und Energie（柏林亥姆霍兹材料与能源中心）；Heidelberg University（海德堡大学）；Synchrotron SOLEIL（SOLEIL同步辐射中心）；Université de Rennes, CNRS, Institut des Sciences Chimiques de Rennes-UMR6226（雷恩大学，法国国家科学研究中心，雷恩化学科学研究所）；Université de Lorraine, CNRS, Institut Jean Lamour（洛林大学，法国国家科学研究中心，让·拉穆尔研究所）；National Synchrotron Radiation Research Center（国家同步辐射研究中心）
Random singlet physics in the $S = \frac{1}{2}$ pyrochlore antiferromagnet NaCdCu$_2$F$_7$
Charles University（查理大学）；Advanced Science Research Center, Japan Atomic Energy Agency（日本原子力机构先进科学研究中心）；Institute of Physics, Czech Academy of Sciences（捷克科学院物理研究所）；Helmholtz-Zentrum Dresden-Rossendorf (HZDR)（德累斯顿-罗斯多夫亥姆霍兹中心）；ISIS Neutron and Muon Source, Rutherford Appleton Laboratory, Science and Technology Facilities Council（英国科学与技术设施委员会卢瑟福阿普尔顿实验室中子与μ子源）
Dynamical dimer structure factor of the triangular $S=1/2$ Heisenberg antiferromagnet
Technische Universität München（慕尼黑工业大学）；Université Libre de Bruxelles（布鲁塞尔自由大学）；Max-Planck-Institut für Physik komplexer Systeme（马克斯·普朗克复杂系统物理研究所）；Munich Center for Quantum Science and Technology (MCQST)（慕尼黑量子科学与技术中心）
