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Tunneling dynamics of small two-component Fermi system

POSTER

Abstract

Tunneling is an inherently quantum mechanical process. Interactions between particles can speed the single-particle tunneling dynamics up or slow it down; they can also trigger correlated tunneling of pairs or clusters. We use high performance computing to implement a trapezoidal splitting method that allows us to solve the three-particle time-dependent Schrodinger equation for a time-dependent potential. We first use imaginary time-evolution to prepare the system in an eigenstate of the Hamiltonian at the initial time. We subsequently use real time-evolution to time evolve the initial state. Throughout the real time-evolution, we monitor the flux in configuration space to study the probability of finding zero, one, two, or three particles in the trap and extract tunneling rates. We will show preliminary results.

Presenters

  • Kevin Mack-Fisher

    University of Oklahoma

Authors

  • Kevin Mack-Fisher

    University of Oklahoma

  • Doerte Blume

    Homer L. Dodge Department of Physics and Astronomy, Center for Quantum Research and Technology, The University of Oklahoma, Norman, Oklahoma, The University of Oklahoma, University of Oklahoma, Homer L. Dodge Department of Physics and Astronomy, Center for Quantum Research and Technology, University of Oklahoma