4 papers
Kosterlitz--Thouless Criticality in a Dipole-Conserving XY Model
Han-Xie Wang, Shuai A. Chen, Zheng Yan +1
In this Letter, we study finite-temperature phase transitions in a two-dimensional classical statistical model called ``dipole-conserving XY model''. Unlike the conventional XY mod…
Quantum Statistics Forbids Particle Exchange Statistics beyond Bosons and Fermions in 3D
Chi-Chun Zhou, Shuai A. Chen, Yu-Zhu Chen +3
Quantum matter in three spatial dimensions is observed to consist exclusively of bosons and fermions. Whether this empirical fact follows from basic consistency requirements of qua…
Fractonic superfluids. III. Hybridizing higher moments
Han-Xie Wang, Shuai A. Chen, Peng Ye
Fractonic superfluids are featured by the interplay of spontaneously broken charge symmetry and mobility constraints on single-particle kinematics due to the conservation of higher…
Quantum entanglement and non-Hermiticity in free-fermion systems
Li-Mei Chen, Yao Zhou, Shuai A. Chen +1
This topical review article reports rapid progress on the generalization and application of entanglement in non-Hermitian free-fermion quantum systems. We begin by examining the re…