Criteria for two-dimensional kinematics in an interacting Fermi gas
نویسندگان
چکیده
منابع مشابه
Clock shift in a strongly interacting two-dimensional Fermi gas.
We derive universal relations for the rf spectroscopy of a two-dimensional Fermi gas consisting of two spin states interacting through an S-wave scattering length. The rf transition rate has a high-frequency tail that is proportional to the contact and displays logarithmic scaling violations, decreasing asymptotically like 1/(ω2ln2ω). Its coefficient is proportional to ln2'(a'(2D)/a(2D)), where...
متن کاملExact bosonization for an interacting fermi gas in arbitrary dimensions.
We present an exact mapping of models of interacting fermions onto boson models. The bosons correspond to collective excitations in the initial fermionic models. This bosonization is applicable in any dimension and for any interaction between fermions. Introducing superfields, we derive a field theory that may serve as a new way of analytical study. We show schematically how the mapping can be ...
متن کاملTwo-dimensional weakly interacting Fermi gas in a magnetic field: Level splitting
We apply the diagram-technique formalism beyond the Hartree-Fock approximation to a two-dimensional nearly ideal electron gas in a weak perpendicular magnetic field. The case of an almost completely filled upper Landau level (filling factor ν0 ∼ 1) with a quantum number N0 ≫ 1 is considered. We uncover two regimes of renormalization by electron-electron interactions. In the first regime, where ...
متن کاملCritical point of an interacting two-dimensional atomic Bose gas.
We have measured the critical atom number in an array of harmonically trapped two-dimensional (2D) Bose gases of rubidium atoms at different temperatures. We found this number to be about 5 times higher than predicted by the semiclassical theory of Bose-Einstein condensation (BEC) in the ideal gas. This demonstrates that the conventional BEC picture is inapplicable in an interacting 2D atomic g...
متن کاملSuperfluidity of an interacting trapped quasi-two-dimensional Bose gas
T. P. Simula, M. J. Davis, and P. B. Blakie Lundbeck Foundation Theoretical Center for Quantum System Research, Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C, Denmark Laboratory of Physics, Helsinki University of Technology, P.O.Box 1100, FI-02015 TKK, Finland ARC Centre of Excellence for Quantum-Atom Optics, School of Physical Sciences, University of Queensland, B...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review A
سال: 2016
ISSN: 2469-9926,2469-9934
DOI: 10.1103/physreva.93.011603