Multipartitioning topological phases by vertex states and quantum entanglement

Y Liu, R Sohal, J Kudler-Flam, S Ryu - Physical Review B, 2022 - APS
We discuss multipartitions of the gapped ground states of (2+ 1)-dimensional topological
liquids into three (or more) spatial regions that are adjacent to each other and meet at points …

Theory of Hofstadter superconductors

D Shaffer, J Wang, LH Santos - Physical Review B, 2021 - APS
We study mean-field states resulting from the pairing of electrons in time-reversal broken
fractal Hofstadter bands, which arise in two-dimensional lattices where the unit cell traps …

Theory of half-integer fractional quantum spin Hall insulator edges

J May-Mann, A Stern, T Devakul - arXiv preprint arXiv:2403.03964, 2024 - arxiv.org
We study the edges of fractional quantum spin Hall insulators (FQSH) with half-integer spin
Hall conductance. These states can be viewed as symmetric combinations of a spin-up and …

Interfaces and the extended Hilbert space of Chern-Simons theory

JR Fliss, RG Leigh - Journal of High Energy Physics, 2020 - Springer
A bstract The low energy effective field theories of (2+ 1) dimensional topological phases of
matter provide powerful avenues for investigating entanglement in their ground states. In [1] …

Disentangling topological states of matter with entanglement negativity

PK Lim, H Asasi, JCY Teo, M Mulligan - Physical Review B, 2021 - APS
We use the entanglement negativity, a bipartite measure of entanglement in mixed quantum
states, to study how multipartite entanglement constrains the real-space structure of the …

Dihedral twist liquid models from emergent Majorana fermions

JCY Teo, Y Hu - Quantum, 2023 - quantum-journal.org
We present a family of electron-based coupled-wire models of bosonic orbifold topological
phases, referred to as twist liquids, in two spatial dimensions. All local fermion degrees of …

Intercomponent entanglement entropy and spectrum in binary Bose-Einstein condensates

T Yoshino, S Furukawa, M Ueda - Physical Review A, 2021 - APS
We study the entanglement entropy and spectrum between components in binary Bose-
Einstein condensates in d spatial dimensions. We employ effective field theory to show that …

Information Scrambling at Quantum Hall Interfaces and Their Analog to Black Hole Event Horizon

KKW Ma, K Yang - arXiv preprint arXiv:2408.00058, 2024 - arxiv.org
The black hole information paradox has been hotly debated for the last few decades without
a full resolution. This makes it desirable to find analogues of this paradox in simple and …

Dynamics of quantum Hall interfaces

Q Li, KKW Ma, R Wang, ZX Hu, H Wang, K Yang - Physical Review B, 2021 - APS
A quantum Hall (QH) interface is different from an ordinary QH edge, as the latter has its
location determined by the confining potential, while the former can be unpinned and …

Simple analog of the black-hole information paradox in quantum Hall interfaces

KKW Ma, K Yang - Physical Review B, 2022 - APS
The black hole information paradox has been hotly debated for the last few decades, without
full resolution. This makes it desirable to find analogs of this paradox in simple and …