147 citations · 1.4k across the 56 of their papers we have counts for
5 papers · 1 filter
Non-Markovian qubit dynamics in a thermal field bath: Relaxation, decoherence and entanglement
S. Shresta, C. Anastopoulos, A. Dragulescu +1
We study the non-Markovian dynamics of a qubit made up of a two-level atom interacting with an electromagnetic field (EMF) initially at finite temperature. Unlike most earlier stud…
Qubit Decoherence and Non-Markovian Dynamics at Low Temperatures via an Effective Spin-Boson Model
K. Shiokawa, B. L. Hu
Quantum Brownian oscillator model (QBM), in the Fock-space representation, can be viewed as a multi-level spin-boson model. At sufficiently low temperature, the oscillator degrees…
Comment on "Enhancing Acceleration Radiation from Ground-State Atoms via Cavity Quantum Electrodynamics"
B. L. Hu, Albert Roura
This is a comment on [Phys. Rev. Lett. 91, 243004 (2003)] by Marlan O. Scully, Vitaly V. Kocharovsky, Alexey Belyanin, Edward Fry and Federico Capasso (quant-ph/0305178).
Induced quantum metric fluctuations and the validity of semiclassical gravity
B. L. Hu, Albert Roura, Enric Verdaguer
We propose a criterion for the validity of semiclassical gravity (SCG) which is based on the stability of the solutions of SCG with respect to quantum metric fluctuations. We pay s…
Moving Charges, Detectors, and Mirrors in a Quantum Field with Backreaction
Chad R. Galley, B. L. Hu, Philip R. Johnson
This is a progress report on our current work on moving charges, detectors, and moving mirrors in a quantum field treated in a fully relativistic way via the Feynman-Vernon influen…