144 citations · 1.7k across the 89 of their papers we have counts for
5 papers · 2 filters
Non-Markovian Dynamics and Entanglement of Two-level Atoms in a Common Field
C. H. Fleming, N. I. Cummings, Charis Anastopoulos +1
We derive the stochastic equations and consider the non-Markovian dynamics of a system of multiple two-level atoms in a common quantum field. We make only the dipole approximation…
Consistent thermodynamics for spin echoes
Charis Anastopoulos, Ntina Savvidou
Spin-echo experiments are often said to constitute an instant of anti-thermodynamic behavior in a concrete physical system that violates the second law of thermodynamics. We argue…
Generalized uncertainty relations and entanglement dynamics in quantum Brownian motion models
C. Anastopoulos, S. Kechribaris, D. Mylonas
We study entanglement dynamics in quantum Brownian motion (QBM) models. Our main tool is the Wigner function propagator. Time evolution in the Wigner picture is physically intuitiv…
The quantum measurement approach to particle oscillations
C. Anastopoulos, N. Savvidou
The LSND and MiniBoone seeming anomalies in neutrino oscillations are usually attributed to physics beyond the Standard model. It is, however, possible that they may be an artefact…
The Rotating-Wave Approximation: Consistency and Applicability from an Open Quantum System Analysis
Chris Fleming, N. I. Cummings, Charis Anastopoulos +1
We provide an in-depth and thorough treatment of the validity of the rotating-wave approximation (RWA) in an open quantum system. We find that when it is introduced after tracing o…