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An operational measure for squeezing

Martin Idel, Daniel Lercher, Michael M. Wolf

J. Phys. A: Math. Theor. 49 (44), (2016) 1607.00873 Pfeil

Abstract: We propose and analyse a mathematical measure for the amount of squeezing contained in a continuous variable quantum state. We show that the proposed measure operationally quantifies the minimal amount of squeezing needed to prepare a given quantum state and that it can be regarded as a squeezing analogue of the