9 papers
Continuous symmetry analysis and systematic identification of candidate order parameters for interacting fermion models
Cheng-Hao He, Yi-Zhuang You, Xiao Yan Xu
Symmetry plays a central role in modern physics, from classifying quantum states to characterizing phases of matter through spontaneous symmetry breaking. In interacting fermionic…
Symmetric Mass Generation in a Bilayer Honeycomb Lattice with Symmetry
Cheng-Hao He, Yi-Zhuang You, Xiao Yan Xu
A central question beyond the Landau paradigm is the non-perturbative critical theory of the symmetric mass generation (SMG) transition, where strong interactions gap Dirac fermion…
Resolving Quantum Criticality in the Honeycomb Hubbard Model
Fo-Hong Wang, Fanjie Sun, Chenghao He +1
Quantum phase transitions driven by electronic correlations are central to understanding the physics of graphene and related two-dimensional materials. A paradigmatic example is th…
Stabilizer-Rényi Microscopy of Critical Correlations in Interacting Fermions
Jun Qi Fang, Fo-Hong Wang, Xiao Yan Xu
Quantum magic---the resource that separates universal quantum computation from efficiently simulable Clifford circuits---has emerged as a diagnostic of many-body quantum states, ye…
Fermionic Partial Transpose in the Overlap Matrix Framework for Entanglement Negativity
Jun Qi Fang, Xiao Yan Xu
Over the past two decades, the overlap matrix approach has been developed to compute quantum entanglement in free-fermion systems, particularly to calculate entanglement entropy an…
Untwisted and Twisted Rényi Negativities: Toward a Rényi Proxy for Logarithmic Negativity in Fermionic Systems
Fo-Hong Wang, Xiao Yan Xu
Entanglement entropy is a fundamental measure of quantum entanglement for pure states, but for large-scale many-body systems, Rényi entanglement entropy is much more computational…