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arXiv · 1501.00274

Orthogonal jumps of wavefunction in white-noise potentials

Lajos Diósi
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Abstract

We investigate the evolution of the quantum state for a free particle placed into a random external potential of white-noise type. The master equation for the density matrix is derived by means of path integral method. We propose an equivalent stochastic process where the wavefunction satisfies a nonlinear Schrödinger equation except for random moments at which it shows orthogonal jumps. The relation of our work to the usual theory of quantum noise and damping is briefly discussed.

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Lajos Diósi. 2015-01-01. Orthogonal jumps of wavefunction in white-noise potentials. https://doi.org/10.1016/0375-9601(85)90342-1

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