activity
20202022
most citedEnhancing the sensitivity of nonlinearity sensors through homodyne detection in dissipatively coupled systems

11 citations · 11 across the 6 of their papers we have counts for

collaborators

6 papers

quant-ph2022

Giant atom induced zero modes and localization in the nonreciprocal Su-Schrieffer-Heeger chain

Junjie Wang, Fude Li, X. X. Yi

A notable feature of non-Hermitian systems with skin effects is the sensitivity of their spectra and eigenstates to the boundary conditions. In the literature, three types of bound…

quant-ph2022

Bloch band structures and linear response theory of nonlinear systems

Fude Li, Junjie Wang, Dianzhen Cui +2

We investigate the Bloch bands and develop a linear response theory for nonlinear systems, where the interplay between topological parameters and nonlinearity leads to new band str…

quant-ph2022

Controlled unidirectional reflectionlessness by coupling strength in a non-Hermitian waveguide quantum electrodynamics system

De-Xiu Qiu, Fude Li, K. Xue +1

Unidirectional reflectionlessness is investigated in a waveguide quantum electrodynamics system that consists of a cavity and a -type three-level quantum dot coupled to a one-di…

physics.optics2022★ 11 cited

Enhancing the sensitivity of nonlinearity sensors through homodyne detection in dissipatively coupled systems

Dianzhen Cui, Jianning Li, Fude Li +2

In this manuscript, we propose a new sensing mechanism to enhance the sensitivity of a quantum system to nonlinearities by homodyning the amplitude quadrature of the cavity field.…

cond-mat.mes-hall2021

Hall conductance of a non-Hermitian two-band system with k-dependent decay rates

Junjie Wang, Fude Li, X. X. Yi

Two-band model works well for Hall effect in topological insulators. It turns out to be non-Hermitian when the system is subjected to environments, and its topology characterized b…

quant-ph2020

Nonlinear Dirac Points and topological invariant in coupled hexagonal lattices

Fude Li, X. X. Yi

Topological phases and materials have attracted much attention in recent years. Though many progress has been made, the effect of nonlinearity on such system remains untouched. In…