Squeezed few-photon states of the field generated from squeezed atoms

Hiroki Saito and Masahito Ueda
Phys. Rev. A 59, 3959 – Published 1 May 1999
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Abstract

This paper develops a method of manipulating the squeezed atom state to generate a few-photon state whose phase or photon-number fluctuations are prescribed at our disposal. The squeezed-atom state is a collective atomic state whose quantum fluctuations in population difference or collective dipole are smaller than those of the coherent atom state. It is shown that the squeezed-atom state can be generated by the interaction of atoms with a coherent state of the electromagnetic field, and that it can be used as a tunable source of squeezed radiation. A variety of squeezed states, including the photon-number squeezed state and the phase squeezed state, can be produced by manipulating the atomic state. This is owing to the fact that quantum-statistical information of the atomic state is faithfully transferred to that of the photon state. Possible experimental situations to implement our theory are discussed.

  • Received 14 September 1998

DOI:https://doi.org/10.1103/PhysRevA.59.3959

©1999 American Physical Society

Authors & Affiliations

Hiroki Saito and Masahito Ueda

  • Department of Physical Electronics, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
  • CREST, Japan Science and Technology Corporation (JST), Higashi-Hiroshima 739-8527, Japan

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Issue

Vol. 59, Iss. 5 — May 1999

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