Quantum Statistics of Nonlinear Optics
In these lectures we shall discuss a number of intrinsically quantum mechanical features of light. We begin with a discussion of photon statistics, including photon antibunching, and sub-Poissonian photon statistics.1 We then describe phase sensitive quantum fluctuations and the property of squeezing.2 Squeezed states of light have fewer fluctuations in one quadrature than a coherent state. This offers the possibility of an enhanced signal to noise ratio in optical communication systems compared to the quantum limit imposed using coherent light sources. Squeezed states also have potential applications in the detection of very weak forces such as gravitational radiation, where the quantum noise in the detector is comparable to the signal strength.
KeywordsCoherent State Cavity Mode Photon Number Photon Statistic Output Field
Unable to display preview. Download preview PDF.
- 4.A.J. Leggett, “Proc. Int. Symp. Foundations of Quantum Mechanics,” Tokyo (1983).Google Scholar
- 17.J.S. Bell, Physics 1:195 (1965); Rev. Mod. Phys. 38:447 (1983).Google Scholar
- 18.J.S. Bell, D. F. Walls, Phys. Rev. A 53:955 (1984)Google Scholar
- 22.M.J. Collett, M.Sc. Thesis, University of Waikato (1984).Google Scholar
- 24.G.J. Milburn, Ph.D. Thesis, University of Waikato (1983).Google Scholar
- 30.A. Caldeira and A.J. Leggett, to be published.Google Scholar
- 31.W.H. Louisell, “Quantum Statistical Properties of Radiation,” Wiley, New York (1973), p. 109.Google Scholar
- 32.G.J. Milburn and D.F. Walls, to be published.Google Scholar