journal article·2017-11-01Open access

Dynamics of Gaussian Wigner functions derived from a time-dependent variational principle

Jens Aage Poulsen, S. Karl-Mikael Svensson, Gunnar Nyman

AIP Advances· Volume 7· Issue 11

Abstract

By using a time-dependent variational principle formulated for Wigner phase-space functions, we obtain the optimal time-evolution for two classes of Gaussian Wigner functions, namely those of either thawed real-valued or frozen but complex Gaussians. It is shown that tunneling effects are approximately included in both schemes.
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Research context

OpenAlex topics: Quantum, superfluid, helium dynamics · Spectroscopy and Quantum Chemical Studies · Quantum chaos and dynamical systems

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Affiliations

Department of Chemistry and Molecular Biology, University of Gothenburg , 41296 Gothenburg, Sweden

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