Browsing by Subject "Energy transfer rate"

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    Energy transfer in a bilayer Fermi gas in the non-linear regime
    (Wiley-VCH Verlag, 2017) Renklioğlu, B.; Oktel, M. Ö.; Tanatar, Bilal
    We consider a bilayer system of two-dimensional spin-polarized dipolar Fermi gas without any tunneling between the layers. We calculate the energy transfer rate between the layers in the nonlinear regime where the layers have a relative velocity, as a function of temperature and drift velocities of the particles of the system in each layer. The effective interactions describing the correlation effects and screening between the dipoles are obtained by the Hubbard approximation in a single layer (intralayer), and the random-phase approximation (RPA) across the layers (inter-layer). The energy transfer arises from the longrange nature of dipolar interactions between the particles of the system. As a result of the increasing drift velocities, the nonlinear heat transfer between the layers remarkably increases and the system reaches its equilibrium at lower temperatures. Our calculations show that cooling with dipolar interactions without any material contact can be utilized to cool the ultracold dipolar systems.