Generation of macroscopic quantum-superposition states by linear coupling to a bath
Quantum Physics
2011-06-10 v1 Mesoscale and Nanoscale Physics
Abstract
We demonstrate through an exactly solvable model that collective coupling to any thermal bath induces effectively nonlinear couplings in a quantum many-body (multi-spin) system. The resulting evolution can drive an uncorrelated large-spin system with high probability into a macroscopic quantum-superposition state. We discuss possible experimental realizations.
Cite
@article{arxiv.1012.4594,
title = {Generation of macroscopic quantum-superposition states by linear coupling to a bath},
author = {D. D. Bhaktavatsala Rao and Nir Bar-Gill and Gershon Kurizki},
journal= {arXiv preprint arXiv:1012.4594},
year = {2011}
}
Comments
4 pages, 2 figures, Physical Review Letters (in press)