title: Deterministic nonclassicality from thermal states.
abstract: Coupling an oscillator to a single two-level system is one of the most fundamental interactions in quantum physics. We report on a dynamical effect during which a thermal state of an oscillator is unconditionally transformed to a highly nonclassical state with negative Wigner function values by mere absorbtion by a single uncontrolled two-level system. This complements the traditional test of Rabi oscillations and it serves as a simply measurable witness that the process in question is highly nonclassical. The process is experimentally feasible with possible experimental implementation in a number of experimental platforms with intrinsic Jaynes-Cummings interaction and it has the potential of enabling deterministic generation of nonclassical quantum states.
authors.forename: L
authors.initials: L
authors.lastname: Slodička
authors.forename: P
authors.initials: P
authors.lastname: Marek
authors.forename: R
authors.initials: R
authors.lastname: Filip