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Optica Publishing Group
  • International Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 1987),
  • paper TUFF4

Squeezing and the positive P representation

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Abstract

One central problem of quantum optics is the derivation of the statistical properties of light from the properties of the corresponding atomic sources. A coherent state, subject only to quantum fluctuations, is the most classical state compatible with the laws of quantum mechanics. A squeezed state has even less noise in one quadrature component at the expense of increased noise in the other component. A number of nonlinear optical devices have been suggested that produce light with a certain amount of squeezing. A realistic theoretical description of this effect requires the solution of a coherent, nonlinear, and dissipative quantum process—a problem not solved easily in analytical terms. Since it is a subtle quantum effect one is looking for, no simple approximations can be used which are not entirely compatible with the laws of quantum mechanics.

© 1987 Optical Society of America

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