3 papers
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-ph2026
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…