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Entangled Atoms in Micromaser Physics
Author(s) -
Englert B.G.,
Englert B.G.,
Löffler M.,
Löffler M.,
Benson O.,
Benson O.,
Varcoe B.,
Weidinger M.,
Walther H.,
Walther H.
Publication year - 1998
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/(sici)1521-3978(199811)46:6/8<897::aid-prop897>3.0.co;2-2
Subject(s) - maser , quantum entanglement , physics , quantum mechanics , field (mathematics) , quantum optics , photon , photon statistics , atomic physics , quantum , astrophysics , mathematics , pure mathematics
A micromaser in standard operation produces entangled two‐level atoms. This entanglement can be investigated in the correlations of atoms leaving the micromaser cavity in the upper and lower maser levels. The correlations contribute to the stabilization of the photon number in the cavity and are thus vital for the generation of sub‐Poissonian statistics in the maser field. We review how various statistical signatures for this entanglement are calculated in micromaser theory, and report recent measurements that demonstrate the case. Ways are described leading to an optimal entanglement for the atoms in the micromaser.