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Quantum Optics

Definition: the part of optics which deals with quantum effects

German: Quantenoptik

Category: quantum optics

How to cite the article; suggest additional literature

Quantum optics is the part of optics which deals with quantum effects. In many cases, such effects are studied in the context of fundamental research. However, they are also very important in laser physics:

Another area of quantum optics involves nonclassical light, such as squeezed states of light, having unusual quantum noise properties. This area is somewhat related to the topic of quantum nondemolition measurements, which make it possible, e.g., to determine the intensity of a light beam without altering it. Quantum optics also has certain applications, e.g. quantum cryptography, which is the use of quantum effects for secure transmission of information, and quantum metrology.


[1]W. P. Schleich et al., Quantum Optics in Phase Space, Wiley-VCH Verlag GmbH, Weinheim (1999)
[2]D. F. Walls and G. J. Milburn, Quantum Optics, Springer, Berlin (1994)
[3]R. Loudon, The Quantum Theory of Light, 3rd edition, Oxford University Press, New York (2000)

(Suggest additional literature!)

See also: quantum noise, stimulated emission, laser noise, coherent states, lasing without inversion, single-atom lasers, quantum cryptography
and other articles in the category quantum optics

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