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Multimode thermal states with multiphoton subtraction: study of the photons number distribution in the selected subsystem

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arxiv 1906.08811 v2 pith:LKQDWKSP submitted 2019-06-20 quant-ph physics.optics

Multimode thermal states with multiphoton subtraction: study of the photons number distribution in the selected subsystem

classification quant-ph physics.optics
keywords numberphotondistributionpropertiessubtractionthermalcorrelationgeneral
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Thermal states of light are widely used in quantum optics due to their correlation properties. As is well known, their correlation properties and the photon number distribution as a whole are strongly dependent on the mode number selected by the detection scheme. The same changes can be caused by photon subtraction. Therefore, we describe the general case of the multimode thermal state after a multiphoton subtraction, when the photon number statistics is registered by the detector selecting a part of the initial modes. We present an analytical form of the obtained photon number distribution and its general properties and check them in the experiment.

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