Application of Quantum Inequalities to Quantum Optics
نویسنده
چکیده
We establish a connection between quantum inequalities, known from quantum field theory on curved spacetimes, and the degree of squeezing in quantum-optical experiments. We prove an inequality which binds the reduction of the electric-field fluctuations to their duration. The bigger the level of fluctuation-suppression the shorter its duration. As an example of an application of this inequality is the case of squeezed light whose phase is controlled with 1% accuracy for which we derive a limit of −15dB on the allowed degree of squeezing.
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