Fermi liquid instabilities in the spin channel
نویسندگان
چکیده
Congjun Wu,1 Kai Sun,2 Eduardo Fradkin,2 and Shou-Cheng Zhang3 1Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106-4030, USA 2Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801-3080, USA 3Department of Physics, McCullough Building, Stanford University, Stanford, California 94305-4045, USA Received 12 October 2006; published 5 March 2007
منابع مشابه
Landau Theory of Helical Fermi Liquids.
We construct a phenomenological Landau theory for the two-dimensional helical Fermi liquid found on the surface of a three-dimensional time-reversal invariant topological insulator. In the presence of rotation symmetry, interactions between quasiparticles are described by ten independent Landau parameters per angular momentum channel, by contrast with the two (symmetric and antisymmetric) Landa...
متن کاملDestruction of theKondo effect in amulti-channel Bose-Fermi Kondomodel
We consider the SU(N)×SU(κN) generalization of the spin-isotropic Bose-Fermi Kondo model in the limit of large N . There are three fixed points corresponding to a multi-channel non-Fermi liquid phase, a local spin-liquid phase, and a Kondo-destroying quantum critical point (QCP). We show that the QCP has strong similarities with its counterpart in the single-channel model, even though the Kondo...
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 کاملBimodality as a signal of a liquid-gas phase transition in nuclei?
We use the heavy-ion phase-space exploration model to discuss the origin of the bimodality in charge asymmetry observed in nuclear reactions around the Fermi energy. We show that it may be related to the important angular momentum (spin) transferred into the quasiprojectile before secondary decay. As the spin overcomes the critical value, a sudden opening of decay channels is induced and leads ...
متن کاملDiagrammatic Theory of Anderson Impurity Models Fermi and Non-fermi Liquid Behavior
We review a recently developed method, based on a pseudoparticle representation of correlated electrons, to describe both Fermi liquid and non-Fermi liquid behavior in quantum impurity systems. The role of the projection onto the physical Hilbert space and the impossibility of slave boson condensation are discussed. By summing the leading coherent spin and charge fluctuation processes in a full...
متن کامل