Quantum Chaos and Regularity in Ultracold Fermi Gases
M. Puig von Friesen, M. Ogren, S. Aberg
TL;DR
This paper investigates quantum energy fluctuations in ultracold Fermi gases, analyzing how regularity and chaos influence these fluctuations, and explores the effects of temperature and potential type on the system's quantum behavior.
Contribution
It applies periodic-orbit theory to ultracold Fermi gases, providing new insights into quantum fluctuations and the role of system regularity and chaos.
Findings
Energy fluctuations vary with particle number in regular and chaotic systems
Temperature influences quantum fluctuation amplitudes
Harmonic confinement alters fluctuation characteristics
Abstract
Quantum fluctuation of the energy is studied for an ultracold gas of interacting fermions trapped in a three-dimensional potential. Periodic-orbit theory is explored, and energy fluctuations are studied versus particle number for generic regular and chaotic systems, as well for a system defined by a harmonic confinement potential. Temperature effects on the energy fluctuations are investigated.
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