title: Transfer of nonclassical properties from a microscopic superposition to macroscopic thermal states in the high temperature limit.
abstract: We present several examples where prominent quantum properties are transferred from a microscopic superposition to thermal states at high temperatures. Our work is motivated by an analogy of Schrödinger's cat paradox, where the state corresponding to the virtual cat is a mixed thermal state with a large average photon number. Remarkably, quantum entanglement can be produced between thermal states with nearly the maximum Bell-inequality violation even when the temperatures of both modes approach infinity.
authors.affiliation: Department of Physics, University of Queensland, St Lucia, Qld 4072, Australia. jeong@physics.uq.edu.au
authors.forename: Hyunseok
authors.initials: H
authors.lastname: Jeong
authors.forename: Timothy C
authors.initials: TC
authors.lastname: Ralph