scholarly journals Interacting Fermi Liquid in Two Dimensions at Finite Temperature. Part II: Renormalization

2000 ◽  
Vol 215 (2) ◽  
pp. 291-341 ◽  
Author(s):  
M. Disertori ◽  
V. Rivasseau
Keyword(s):  
Finite Temperature ◽  
Fermi Liquid ◽  
Two Dimensions

Theory of a polarized Fermi liquid in two dimensions: Spin diffusion

1984 ◽  
Vol 56 (5-6) ◽  
pp. 499-522 ◽  
Author(s):  
K. Miyake ◽  
W. J. Mullin
Keyword(s):  
Fermi Liquid ◽  
Spin Diffusion ◽  
Two Dimensions

scholarly journals Interacting Fermi Liquid in Three Dimensions at Finite Temperature: Part I: Convergent Contributions

2001 ◽  
Vol 2 (4) ◽  
pp. 733-806 ◽  
Author(s):  
M. Disertori ◽  
J. Magnen ◽  
V. Rivasseau
Keyword(s):  
Finite Temperature ◽  
Fermi Liquid ◽  
Three Dimensions

scholarly journals Identification of non-Fermi liquid fermionic self-energy from quantum Monte Carlo data

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Xiao Yan Xu ◽  
Avraham Klein ◽  
Kai Sun ◽  
Andrey V. Chubukov ◽  
Zi Yang Meng
Keyword(s):  
Monte Carlo ◽  
Finite Temperature ◽  
Quantum Monte Carlo ◽  
Fermi Liquid ◽  
Quantum Critical Point ◽  
Critical Metals ◽  
Monte Carlo Data ◽  
Low Frequencies ◽  
Self Energy ◽  
Quantum Critical

Abstract Quantum Monte Carlo (QMC) simulations of correlated electron systems provide unbiased information about system behavior at a quantum critical point (QCP) and can verify or disprove the existing theories of non-Fermi liquid (NFL) behavior at a QCP. However, simulations are carried out at a finite temperature, where quantum critical features are masked by finite-temperature effects. Here, we present a theoretical framework within which it is possible to separate thermal and quantum effects and extract the information about NFL physics at T = 0. We demonstrate our method for a specific example of 2D fermions near an Ising ferromagnetic QCP. We show that one can extract from QMC data the zero-temperature form of fermionic self-energy Σ(ω) even though the leading contribution to the self-energy comes from thermal effects. We find that the frequency dependence of Σ(ω) agrees well with the analytic form obtained within the Eliashberg theory of dynamical quantum criticality, and obeys ω2/3 scaling at low frequencies. Our results open up an avenue for QMC studies of quantum critical metals.

scholarly journals Finite-Temperature Phase Diagram of Hard-Core Bosons in Two Dimensions

2002 ◽  
Vol 88 (16) ◽  
Author(s):  
Guido Schmid ◽  
Synge Todo ◽  
Matthias Troyer ◽  
Ansgar Dorneich
Keyword(s):  
Phase Diagram ◽  
Finite Temperature ◽  
Hard Core ◽  
Two Dimensions ◽  
Temperature Phase ◽  
Temperature Phase Diagram

scholarly journals Fermi-liquid ground state of interacting Dirac fermions in two dimensions

2019 ◽  
Vol 99 (12) ◽  
Author(s):  
Kazuhiro Seki ◽  
Yuichi Otsuka ◽  
Seiji Yunoki ◽  
Sandro Sorella
Keyword(s):  
Ground State ◽  
Fermi Liquid ◽  
Two Dimensions ◽  
Dirac Fermions

scholarly journals First temperature corrections to the Fermi-liquid fixed point in two dimensions

2001 ◽  
Vol 64 (5) ◽  
Author(s):  
Gennady Y. Chitov ◽  
Andrew J. Millis
Keyword(s):  
Fixed Point ◽  
Fermi Liquid ◽  
Two Dimensions

scholarly journals Quantum electrodynamics in two dimensions at a finite-temperature thermofield bosonization approach

2010 ◽  
Vol 44 (2) ◽  
pp. 025401 ◽  
Author(s):  
L V Belvedere ◽  
R L P G Amaral ◽  
K D Rothe ◽  
A F Rodrigues
Keyword(s):  
Finite Temperature ◽  
Quantum Electrodynamics ◽  
Two Dimensions

Finite-temperature contributions to the magnetic susceptibility of a normal Fermi liquid

1977 ◽  
Vol 16 (5) ◽  
pp. 1933-1943 ◽  
Author(s):  
G. M. Carneiro ◽  
C. J. Pethick
Keyword(s):  
Magnetic Susceptibility ◽  
Finite Temperature ◽  
Fermi Liquid ◽  
Normal Fermi
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