Abstract
We show that by minor modification of the previously proposed procedure for the generation of near-coherent states, one can produce “near states” even from a mixed input state. In this study, we consider this procedure as a conditional quantum-state transformation and find the explicit form of the non-unitary transformation operator. We demonstrate that even in mixed states, this quantum process can produce nonclassical states with a smooth non-positive P-function.
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Nahvifard, E., Bazrafkan, M.R. Conditional Transformation Operator for Near State Generation. J Russ Laser Res 45, 147–154 (2024). https://doi.org/10.1007/s10946-024-10197-3
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DOI: https://doi.org/10.1007/s10946-024-10197-3