Are non-Fermi-liquids stable to Cooper pairing?
نویسندگان
چکیده
Max A. Metlitski, David F. Mross, Subir Sachdev, 4 and T. Senthil Kavli Institute for Theoretical Physics, UC Santa Barbara, CA 93106 Physics Department, California Institute of Technology, Pasadena, CA 91125 Department of Physics, Harvard University, Cambridge, MA 02138 Perimeter Institute of Theoretical Physics, Waterloo, Ontario, N2L 2Y5, Canada. Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (Dated: March 11, 2015)
منابع مشابه
Cooper pairing in non-Fermi liquids
Max A. Metlitski,1 David F. Mross,2 Subir Sachdev,3,4 and T. Senthil5 1Kavli Institute for Theoretical Physics, UC Santa Barbara, California 93106, USA 2Physics Department, California Institute of Technology, Pasadena, California 91125, USA 3Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA 4Perimeter Institute of Theoretical Physics, Waterloo, Ontario, Canada N2L 2...
متن کاملComposite Dirac liquids: parent states for symmetric surface topological order
We introduce exotic gapless states—‘composite Dirac liquids’—that can appear at a strongly interacting surface of a three-dimensional electronic topological insulator. Composite Dirac liquids exhibit a gap to all charge excitations but nevertheless feature a single massless Dirac cone built from emergent electrically neutral fermions. These states thus comprise electrical insulators that, inter...
متن کاملUnconventional symmetries of Fermi liquid and Cooper pairing properties with electric and magnetic dipolar fermions.
The rapid experimental progress of ultra-cold dipolar fermions opens up a whole new opportunity to investigate novel many-body physics of fermions. In this article, we review theoretical studies of the Fermi liquid theory and Cooper pairing instabilities of both electric and magnetic dipolar fermionic systems from the perspective of unconventional symmetries. When the electric dipole moments ar...
متن کاملUncertainty principle enhanced pairing correlations in projected Fermi systems near half filling
We point out the curious phenomenon of order by projection in a class of lattice Fermi systems near half filling. Enhanced pairing correlations of extended s-wave Cooper pairs result from the process of projecting out s-wave Cooper pairs, with negligible effect on the ground-state energy. The Hubbard model is a particularly nice example of the above phenomenon, which is revealed with the use of...
متن کاملPairing in a dry Fermi sea
In the traditional Bardeen-Cooper-Schrieffer theory of superconductivity, the amplitude for the propagation of a pair of electrons with momentum k and -k has a log singularity as the temperature decreases. This so-called Cooper instability arises from the presence of an electron Fermi sea. It means that an attractive interaction, no matter how weak, will eventually lead to a pairing instability...
متن کامل