94 citations · 241 across the 7 of their papers we have counts for
4 papers · 1 filter
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…
The Accuracy of Perturbative Master Equations
Chris H. Fleming, Nick I. Cummings
We consider open quantum systems with dynamics described by master equations that have perturbative expansions in the system-environment interaction. We show that, contrary to intu…
Protecting and Dynamically Generating Entanglement in a Two-Atom Two-Field-Mode Model
K. Sinha, N. Cummings, B. L. Hu
We analyze the time evolution of quantum entanglement in a model consisting of two two-level atoms interacting with a two-mode electromagnetic field for a variety of initial states…
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…