@article {bhaktavatsala raogeneration2011,
	title = {Generation of macroscopic superpositions of quantum states by linear coupling to a bath.},
	journal = {Physical review letters},
	volume = {106},
	year = {2011},
	abstract = {We demonstrate through an exactly solvable model that collective coupling to any thermal bath induces effectively nonlinear couplings in a quantum many-body (multispin) 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.},
	author = {Bhaktavatsala Rao, D and Nir Bar-Gill and Gershon Kurizki}
}
