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Selected Works of Olga Goulko
Article
Analog Simulation of Weyl Particles with Cold Atoms
EPL: Europhysics Lettetters (2016)
  • Daniel Suchet, Ecole Normale Superieure de Paris
  • Mihail Rabinovic, Ecole Normale Superieure de Paris
  • Thomas Reimann, Ecole Normale Superieure de Paris
  • Norman Kretschmar, Ecole Normale Superieure de Paris
  • Franz Sievers, Ecole Normale Superieure de Paris
  • Christophe Salomon, Ecole Normale Superieure de Paris
  • Johnathan Lau, University of Southampton
  • Olga Goulko, University of Massachusetts Amherst
  • Carlos Lobo, University of Southampton
  • Frederic Chevy, Ecole Normale Superieure de Paris
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Abstract
We study theoretically, numerically, and experimentally the relaxation of a collisionless gas in a quadrupole trap after a momentum kick. The non-separability of the potential enables a quasi thermalization of the single particle distribution function even in the absence of interactions. Suprinsingly, the dynamics features an effective decoupling between the strong trapping axis and the weak trapping plane. The energy delivered during the kick is redistributed according to the symmetries of the system and satisfies the Virial theorem, allowing for the prediction of the final temperatures. We show that this behaviour is formally equivalent to the relaxation of massless relativistic Weyl fermions after a sudden displacement from the center of a harmonic trap.
Keywords
  • ultracold gases,
  • trapped gases,
  • kinetic theory,
  • non-equilibrium thermodynamics
Disciplines
Publication Date
2016
DOI
10.1209/0295-5075/114/26005
Citation Information
Daniel Suchet, Mihail Rabinovic, Thomas Reimann, Norman Kretschmar, et al.. "Analog Simulation of Weyl Particles with Cold Atoms" EPL: Europhysics Lettetters Vol. 114 Iss. 2 (2016) p. 26005
Available at: http://works.bepress.com/olga-goulko/11/