Distinctive features in the quantum sub-dynamics of bipartite systems
Abstract
Distinctive features in the sub-dynamics of an interacting bipartite system are explored. The sub-dynamic Heisenberg operators are introduced in a novel way leading to the quasi-particle-like concept in the respective subsystems. This formulation is illustrated using the known exact solutions of the generic (Jaynes - Cummings) model of interacting bipartite system of a spin 1/2 particle and a single mode electromagnetic field (more generally, boson field). The striking effects of interaction and entanglement are reflected in the dressing of the non-interacting number and spin representations, displaying quasi-particle-like properties. This development may be at the heart of the physics of back - action discussed in the recent literature.
Cite
@article{arxiv.0709.1212,
title = {Distinctive features in the quantum sub-dynamics of bipartite systems},
author = {A. K. Rajagopal and A. R. Usha Devi and R. W. Rendell and Michael Steiner},
journal= {arXiv preprint arXiv:0709.1212},
year = {2007}
}
Comments
4 pages, 1 ps figure