activity
19932026
most citedSplit fermion quasi-normal modes

56 citations · 279 across the 33 of their papers we have counts for

collaborators

34 papers

quant-ph2026

Quantum optomechanics with arbitrary mirror displacement: nonlinear Langevin equation with non-Markovian back-action noises

Adrian E. Rubio Lopez, Hing-Tong Cho, Bei-Lok Hu

Quantum optomechanics (QOM) explores the interaction between a quantum field, often confined in a cavity, and the quantum motion of mirrors, membranes or material media, usually as…

gr-qc2026

Open quantum system approach to the Unruh-DeWitt detector in impulsive plane wave spacetimes

Hing-Tong Cho

In this paper we employ the open quantum system framework with the influence functional formalism to non-perturbatively analyze the response of an Unruh-DeWitt detector modeled as…

quant-ph2026

Quantum Brownian motion with non-Gaussian noises: Fluctuation-Dissipation Relation and nonlinear Langevin equation

Hing-Tong Cho, Bei-Lok Hu

Building upon the work of Hu, Paz, and Zhang [1,2] on open quantum systems we consider the quantum Brownian motion (QBM) model with one oscillator (position variable ) as the sy…

hep-ph2025

Four-point correlation functions in axion inflation

Hing-Tong Cho, Kin-Wang Ng

We study parity violation in the early universe by examining the four-point correlation function within the axion inflation model. Using an open quantum system formalism from our p…

gr-qc2025

Non-Markovian Quantum Master and Fokker-Planck Equation for Gravitational Systems and Gravitational Decoherence

Hing-Tong Cho, Bei-Lok Hu

A quantum master equation describing the stochastic dynamics of a quantum massive system interacting with a quantum gravitational field is useful for the investigation of quantum g…

gr-qc2024

A semi-analytic treatment of quasinormal excitation factors in the eikonal regime

Chun-Hung Chen, Hing-Tong Cho, Anna Chrysostomou +1

In this paper, we present an enhanced semi-analytic method for calculating quasinormal excitation factors in the eikonal regime, specifically for Schwarzschild black holes. To achi…