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20112026
most citedAbsence of topological insulator phases in non-Hermitian PT-symmetric Hamiltonians

263 citations · 354 across the 19 of their papers we have counts for

collaborators

20 papers

hep-th2026

Semiclassical state on algebra of observables for de Sitter space and time reversal symmetry

Muxin Han, Yichen Hu

In de Sitter static patch holography, coupling bulk quantum fields to an observer's dynamical clock yields a type II von Neumann algebra of gauge-invariant obse…

math-ph2026

Euler Topological Metals in 1D

Yichen Hu, Jacob Shapiro

We give a rigorous one-dimensional formulation of Kane's transport proposal for probing the Euler characteristic of a Fermi sea. For a clean, translation-invariant continuum Hamilt…

stat.ME2026

Bias-Corrected Multiplier Bootstrap Inference for Spectral Edges of Large Covariance Matrices

Xiucai Ding, Yichen Hu, Jiahui Xie

Inference for spectral edges of large covariance matrices is a fundamental problem in high-dimensional statistics. A major difficulty is that the largest non-spiked sample eigenval…

math.AP2026

Rigidity of weak solutions for anisotropic N-Laplacian equation with Neumann or Robin boundary condition

Yuxia Guo, Yichen Hu, Shaolong Peng +1

This paper is devoted to the rigidity of weak solutions for anisotropic -Laplacian equations with Neumann or Robin boundary conditions on smooth bounded convex domains of $\math…

math.AP2026

Nonlinear Neumann boundary problems for -Laplacian Liouville equation on a half space

Wei Dai, Changfeng Gui, Yichen Hu +1

In this paper, for general , we classify solutions to -Laplacian Liouville equation with positive nonlinear Neumann boundary condition on the half-space $\mathbb{R}^{n}_…

math.AP2025

On the sharp quantitative stability of critical points of the Hardy-Littlewood-Sobolev inequality in with

Wei Dai, Yichen Hu, Shaolong Peng

Assume and . Recently, Piccione, Yang and Zhao \cite{Piccione-Yang-Zhao} established a nonlocal version of Struwe's decomposition in \cite{St…

cond-mat.mes-hall2024

Resistance Distribution of Decoherent Quantum Hall-Superconductor Edges

Yichen Hu, Jing Wang, Biao Lian

We study the probability distribution of the resistance, or equivalently the charge transmission, of a decoherent quantum Hall-superconductor edge, with the decoherence coming from…

stat.ME2023

Two sample test for covariance matrices in ultra-high dimension

Xiucai Ding, Yichen Hu, Zhenggang Wang

In this paper, we propose a new test for testing the equality of two population covariance matrices in the ultra-high dimensional setting that the dimension is much larger than the…

cond-mat.str-el2023★ 8 cited

Twisted coupled wire model for a moiré sliding Luttinger liquid

Yichen Hu, Yuanfeng Xu, Biao Lian

Recent experiments in twisted bilayer WTe revealed the existence of anisotropic Luttinger liquid behavior. To generically characterize such anisotropic twisted bilayer systems,…

math.AP2023

Double-tower Solutions for Higher Order Prescribed Curvature Problem

Yuan Gao, Yuxia Guo, Yichen Hu

We consider the following higher order prescribed curvature problem on \begin{equation*} D^m \tilde u=\widetilde{K}(y) \tilde u^{m^{*}-1} \quad \mbox{on} \ {\m…

math-ph2023

Homotopy Classification of loops of Clifford unitaries

Roman Geiko, Yichen Hu

Clifford quantum circuits are elementary invertible transformations of quantum systems that map Pauli operators to Pauli operators. We study periodic one-parameter families of Clif…

hep-th2023

Decomposition of superconformal minimal models and their fractional quantum Hall wavefunctions

Yichen Hu, Sirui Ning, Yehao Zhou

superconformal minimal models are the first series of unitary conformal field theories (CFTs) extending beyond Virasoro algebra. Using coset constructions, we chara…

math.AP2022★ 5 cited

Non-degeneracy of solution for critical Lane-Emden systems with linear perturbation

Yuxia Guo, Yichen Hu, Shaolong Peng

In this paper, we consider the following elliptic system \begin{equation*} \begin{cases} -Δu = |v|^{p-1}v +ε(αu + β_1 v), &\hbox{ in }Ω, \\-Δv = |u|^{q-1}u+ε(β_2 u +αv), &\hbox{ in…

cond-mat.str-el2021★ 2 cited

Integrability of the fractional quantum Hall edge states

Yichen Hu, Biao Lian

We investigate the homogeneous chiral edge theory of the filling fractional quantum Hall state, which is parameterized by a Luttinger liquid velocity matrix and an electron…

cond-mat.str-el2021★ 8 cited

Chiral Sachdev-Ye model: Integrability and chaos of anyons in 1+1d

Yichen Hu, Biao Lian

We construct and study a chiral Sachdev-Ye (SY) model consisting of chiral SU Wess-Zumino-Witten (WZW) models with current-current interactions among each other, which g…

cond-mat.str-el2021★ 3 cited

Dihedral twist liquid models from emergent Majorana fermions

Jeffrey C. Y. Teo, Yichen Hu

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…

cond-mat.str-el2020★ 17 cited

Excitonic fractional quantum Hall hierarchy in Moiré heterostructures

Yves H. Kwan, Yichen Hu, Steven H. Simon +1

We consider fractional quantum Hall states in systems where two flat Chern number bands are labeled by an approximately conserved 'valley' index and interchanged by time…

cond-mat.mes-hall2017★ 45 cited

Fibonacci Topological Superconductor

Yichen Hu, C. L. Kane

We introduce a model of interacting Majorana fermions that describes a superconducting phase with a topological order characterized by the Fibonacci topological field theory. Our t…

cond-mat.mes-hall2016★ 3 cited

Universal Symmetry-Protected Resonances in a Spinful Luttinger Liquid

Yichen Hu, C. L. Kane

We study the problem of resonant tunneling through a quantum dot in a spinful Luttinger liquid. For a range of repulsive interactions, we find that for symmetric barriers there exi…

cond-mat.other2011★ 263 cited

Absence of topological insulator phases in non-Hermitian PT-symmetric Hamiltonians

Yi Chen Hu, Taylor L. Hughes

In this work we consider a generalization of the symmetry classification of topological insulators to non-Hermitian Hamiltonians which satisfy a combined -symmetry (parity and…