Abstract
The coherent states of light have played a central role in quantum optics. They are minimum uncertainty states with their associated quantum noise randomly distributed in phase. That is, they have equal uncertainties in the two quadrature phase amplitudes of the electric field. Squeezed states on the other hand have phase sensitive quantum noise. The uncertainty in one quadrature phase is less than that in a coherent state. The possibility of achieving less quantum fluctuations in one quadrature phase than a coherent state, at the expense of course of increased fluctuations in the other quadrature phase has intriguing potential in low noise optical communication systems.1 Squeezed states of the electromagnetic field do not have a nonsingular representation in terms of the Glauber Sudarshan P representation. They may therefore be classified as non classical states of the radiation field. The present priority in this field is to generate and detect a light field which exhibits squeezing. In this paper we shall analyse some possible schemes to generate squeezed states.
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© 1984 Springer Science+Business Media New York
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Walls, D.F. (1984). Squeezed States of the Electromagnetic Field. In: Mandel, L., Wolf, E. (eds) Coherence and Quantum Optics V. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-0605-5_89
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DOI: https://doi.org/10.1007/978-1-4757-0605-5_89
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