Quantum state diffusion with a moving basis: computing quantum-optical spectra

R. Schack; T. A. Brun; I. C. Percival

doi:10.1103/physreva.53.2694

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arXiv · atom-ph/9510001

Quantum state diffusion with a moving basis: computing quantum-optical spectra

R. Schack·T. A. Brun·I. C. Percival

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Abstract

Quantum state diffusion (QSD) as a tool to solve quantum-optical master equations by stochastic simulation can be made several orders of magnitude more efficient if states in Hilbert space are represented in a moving basis of excited coherent states. The large savings in computer memory and time are due to the localization property of the QSD equation. We show how the method can be used to compute spectra and give an application to second harmonic generation.

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R. Schack, T. A. Brun, I. C. Percival. 1995-10-03. Quantum state diffusion with a moving basis: computing quantum-optical spectra. https://doi.org/10.1103/physreva.53.2694

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