Heralded dissipative preparation of nonclassical states in a Kerr oscillator
arXiv:1906.05126 · doi:10.1103/PhysRevResearch.2.013071
Abstract
We present a heralded state preparation scheme for driven nonlinear open quantum systems. The protocol is based on a continuous photon counting measurement of the system's decay channel. When no photons are detected for a period of time, the system has relaxed to a measurement-induced pseudo-steady state. We illustrate the protocol by the creation of states with a negative Wigner function in a Kerr oscillator, a system whose unconditional steady state is strictly positive.
arXiv comment8 pages, 5 figures, corresponds to published version
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