84 citations · 307 across the 14 of their papers we have counts for
14 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…
Many-body physics of spontaneously broken higher-rank symmetry: from fractonic superfluids to dipolar Hubbard model
Shuai A. Chen, Peng Ye
Fractonic superfluids are exotic phases of matter in which bosons are subject to mobility constraints, resulting in features beyond those of conventional superfluids. These exotic…
The Ginzburg-Landau theory of flat band superconductors with quantum metric
Shuai A. Chen, K. T. Law
Recent experimental study unveiled highly unconventional phenomena in the superconducting twisted bilayer graphene (TBG) with ultra flat bands, which cannot be described by the con…
Continuous transition from a Landau quasiparticle to a neutral spinon
Jing-Yu Zhao, Shuai A. Chen, Rong-Yang Sun +1
We examine a wavefunction ansatz in which a doped hole can experience a quantum transition from a charge Landau quasiparticle to a neutral spinon as a function of the underlyi…
Quantum Hydrodynamics of Fractonic Superfluids with Lineon Condensate: from Navier-Stokes-like Equations to Landau-like Criterion
Jian-Keng Yuan, Shuai A. Chen, Peng Ye
Fractonic superfluids are exotic states of matter with spontaneously broken higher-rank symmetry. The latter is associated with conserved quantities that include not only pa…
Proposal for asymmetric photoemission and tunneling spectroscopies in quantum simulators of the triangular-lattice Fermi-Hubbard model
Shuai A. Chen, Qianqian Chen, Zheng Zhu
Recent realization of well-controlled quantum simulators of the triangular-lattice Fermi-Hubbard model, including the triangular optical lattices loaded with ultracold Fermions and…
Hierarchical Proliferation of Higher-Rank Symmetry Defects in Fractonic Superfluids
Jian-Keng Yuan, Shuai A. Chen, Peng Ye
Symmetry defects, e.g., vortices in conventional superfluids, play a critical role in a complete description of symmetry-breaking phases. In this paper, we develop the theory of sy…
Quantum Entanglement of Non-Hermitian Quasicrystals
Li-Mei Chen, Yao Zhou, Shuai A. Chen +1
As a hallmark of pure quantum effect, quantum entanglement has provided unconventional routes to condensed matter systems. Here, from the perspective of quantum entanglement, we di…
Fractonic superfluids. (II). Condensing subdimensional particles
Shuai A. Chen, Jian-Keng Yuan, Peng Ye
In this paper, we develop an exotic fractonic superfluid phase in -dimensional space where subdimensional particles -- their mobility is \emph{partially} restricted -- are conde…
Entanglement, non-Hermiticity, and duality
Li-Mei Chen, Shuai A. Chen, Peng Ye
Usually duality process keeps energy spectrum invariant. In this paper, we provide a duality, which keeps entanglement spectrum invariant, in order to diagnose quantum entanglement…
Fractonic Superfluids
Jian-Keng Yuan, Shuai A. Chen, Peng Ye
We propose a superfluid phase of ``many-fracton system'' in which charge and total dipole moments are conserved quantities. In this work, both microscopic model and long-wavelength…