scholarly journals Crossover between BCS Superconductor and Doped Mott Insulator ofd-Wave Pairing State in Two-Dimensional Hubbard Model

2013 ◽  
Vol 82 (1) ◽  
pp. 014707 ◽  
Author(s):  
Hisatoshi Yokoyama ◽  
Masao Ogata ◽  
Yukio Tanaka ◽  
Kenji Kobayashi ◽  
Hiroki Tsuchiura
Keyword(s):  
Hubbard Model ◽  
Mott Insulator ◽  
Two Dimensional ◽  
Pairing State ◽  
Wave Pairing ◽  
Doped Mott Insulator

Stability ofs+id-Wave Pairing State in the 2-D Extended Hubbard Model

1995 ◽  
Vol 64 (3) ◽  
pp. 922-926 ◽  
Author(s):  
Hiroki Tsuchiura ◽  
Yukio Tanaka ◽  
Yasunari Ushijima
Keyword(s):  
Hubbard Model ◽  
Extended Hubbard Model ◽  
Pairing State ◽  
Wave Pairing

scholarly journals Phonons andd-wave pairing in the two-dimensional Hubbard model

2007 ◽  
Vol 75 (1) ◽  
Author(s):  
Carsten Honerkamp ◽  
Henry C. Fu ◽  
Dung-Hai Lee
Keyword(s):  
Hubbard Model ◽  
Two Dimensional ◽  
Wave Pairing

scholarly journals High-density Two-Dimensional Small Polaron Gas in a Delta-Doped Mott Insulator

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Daniel G. Ouellette ◽  
Pouya Moetakef ◽  
Tyler A. Cain ◽  
Jack Y. Zhang ◽  
Susanne Stemmer ◽  
...  
Keyword(s):  
Small Polaron ◽  
Mott Insulator ◽  
High Density ◽  
Two Dimensional ◽  
Doped Mott Insulator

Phonon-inducedd-wave pairing in the two-dimensional Hubbard model

1995 ◽  
Vol 52 (5) ◽  
pp. 3079-3082 ◽  
Author(s):  
M. Mierzejewski ◽  
J. Zieliński
Keyword(s):  
Hubbard Model ◽  
Two Dimensional ◽  
Wave Pairing

scholarly journals Quantum Monte Carlo evidence ford-wave pairing in the two-dimensional Hubbard model at a van Hove singularity

1996 ◽  
Vol 54 (22) ◽  
pp. 16179-16182 ◽  
Author(s):  
T. Husslein ◽  
I. Morgenstern ◽  
D. M. Newns ◽  
P. C. Pattnaik ◽  
J. M. Singer ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Hubbard Model ◽  
Quantum Monte Carlo ◽  
Two Dimensional ◽  
Van Hove Singularity ◽  
Wave Pairing

scholarly journals Information-theoretic measures of superconductivity in a two-dimensional doped Mott insulator

2021 ◽  
Vol 118 (25) ◽  
pp. e2104114118
Author(s):  
Caitlin Walsh ◽  
Maxime Charlebois ◽  
Patrick Sémon ◽  
Giovanni Sordi ◽  
André-Marie S. Tremblay
Keyword(s):  
Normal State ◽  
Superconducting State ◽  
Mean Field Theory ◽  
Mott Insulator ◽  
Two Dimensional ◽  
Local Entropy ◽  
Unconventional Superconductor ◽  
Doped Mott Insulator ◽  
Classical Correlations ◽  
Quantum And Classical Correlations

A key open issue in condensed-matter physics is how quantum and classical correlations emerge in an unconventional superconductor from the underlying normal state. We study this problem in a doped Mott insulator with information-theory tools on the two-dimensional (2D) Hubbard model at finite temperature with cluster dynamical mean-field theory. We find that the local entropy detects the superconducting state and that the difference in the local entropy between the superconducting and normal states follows the same difference in the potential energy. We find that the thermodynamic entropy is suppressed in the superconducting state and monotonically decreases with decreasing doping. The maximum in entropy found in the normal state above the overdoped region of the superconducting dome is obliterated by superconductivity. The total mutual information, which quantifies quantum and classical correlations, is amplified in the superconducting state of the doped Mott insulator for all doping levels and shows a broad peak versus doping, as a result of competing quantum and classical effects.

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