%0 Journal Article
%T Generation of macroscopic quantum-superposition states by linear coupling to a bath
%A D. D. Bhaktavatsala Rao
%A Nir Bar-Gill
%A Gershon Kurizki
%J Physics
%D 2010
%I arXiv
%R 10.1103/PhysRevLett.106.010404
%X 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.
%U http://arxiv.org/abs/1012.4594v1