Abstract
We find that the optical wavelet transformation can be used to study the Husimi distribution function in phase space theory of quantum optics. We prove that the Husimi distribution function of a quantum state |ψ〉 is just the modulus square of the wavelet transform of \(e^{-x^{2}/2}\) with ψ(x) being the mother wavelet up to a Gaussian function. Thus a convenient approach for calculating various Husimi distribution functions of miscellaneous quantum states is presented.
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Hu, LY., Fan, HY. Wavelet Transformation and Wigner-Husimi Distribution Function. Int J Theor Phys 48, 1539–1544 (2009). https://doi.org/10.1007/s10773-009-0008-z
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DOI: https://doi.org/10.1007/s10773-009-0008-z