scholarly journals Quantum criticality and non-Fermi-liquid behavior in a two-level two-lead quantum dot

2010 ◽  
Vol 81 (4) ◽  
Author(s):  
Xin Wang ◽  
Andrew J. Millis
Keyword(s):  
Quantum Dot ◽  
Fermi Liquid ◽  
Quantum Criticality ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior

scholarly journals LUTTINGER LIQUID, SINGULAR INTERACTION AND QUANTUM CRITICALITY IN CUPRATE MATERIALS

2012 ◽  
Vol 26 (22) ◽  
pp. 1244003
Author(s):  
C. DI CASTRO ◽  
S. CAPRARA
Keyword(s):  
Fermi Liquid ◽  
High Temperature Superconductors ◽  
Effective Interaction ◽  
Luttinger Liquid ◽  
Metallic Phase ◽  
Quantum Criticality ◽  
Electron Interaction ◽  
Research Activity ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior

With particular reference to the role of the renormalization group (RG) approach and Ward identities (WI's), we start by recalling some old features of the one-dimensional Luttinger liquid as the prototype of non-Fermi-liquid behavior. Its dimensional crossover to the Landau normal Fermi liquid implies that a non-Fermi liquid, as, e.g., the normal phase of the cuprate high temperature superconductors, can be maintained in d>1 only in the presence of a sufficiently singular effective interaction among the charge carriers. This is the case when, nearby an instability, the interaction is mediated by critical fluctuations. We are then led to introduce the specific case of superconductivity in cuprates as an example of avoided quantum criticality. We will disentangle the fluctuations which act as mediators of singular electron–electron interaction, enlightening the possible order competing with superconductivity and a mechanism for the non-Fermi-liquid behavior of the metallic phase. This paper is not meant to be a comprehensive review. Many important contributions will not be considered. We will also avoid using extensive technicalities and making full calculations for which we refer to the original papers and to the many good available reviews. We will here only follow one line of reasoning which guided our research activity in this field.

Non-Fermi liquid behavior and quantum criticality in and

2006 ◽  
Vol 378-380 ◽  
pp. 911-914 ◽  
Author(s):  
M.B. Maple ◽  
N.P. Butch ◽  
E.D. Bauer ◽  
V.S. Zapf ◽  
P.-C. Ho ◽  
...  
Keyword(s):  
Fermi Liquid ◽  
Quantum Criticality ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior

Possible Fermi liquid behavior of 5f electrons in UPt3 at T⪢TK

1990 ◽  
Vol 163 (1-3) ◽  
pp. 167-168 ◽  
Author(s):  
A.J. Arko ◽  
P. Armstrong ◽  
M. Wire
Keyword(s):  
Fermi Liquid ◽  
Liquid Behavior ◽  
5F Electrons ◽  
Fermi Liquid Behavior

scholarly journals Non-Fermi-Liquid Behavior in Metallic Quasicrystals with Local Magnetic Moments

2015 ◽  
Vol 115 (3) ◽  
Author(s):  
Eric C. Andrade ◽  
Anuradha Jagannathan ◽  
Eduardo Miranda ◽  
Matthias Vojta ◽  
Vladimir Dobrosavljević
Keyword(s):  
Fermi Liquid ◽  
Magnetic Moments ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior
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