scholarly journals Phase structure of two-dimensional topological insulators by lattice strong-coupling expansion

2013 ◽  
Vol 87 (20) ◽  
Author(s):  
Yasufumi Araki ◽  
Taro Kimura
Keyword(s):  
Strong Coupling ◽  
Phase Structure ◽  
Topological Insulators ◽  
Strong Coupling Expansion ◽  
Two Dimensional

scholarly journals Phase structure of topological insulators by lattice strong-coupling expansion

2014 ◽  
Author(s):  
Yasufumi Araki ◽  
Taro Kimura ◽  
Akihiko Sekine ◽  
Kentaro Nomura ◽  
Takashi Z. Nakano
Keyword(s):  
Strong Coupling ◽  
Phase Structure ◽  
Topological Insulators ◽  
Strong Coupling Expansion

scholarly journals STRONG COUPLING EXPANSION FOR GENERAL RELATIVITY

2006 ◽  
Vol 15 (09) ◽  
pp. 1373-1386 ◽  
Author(s):  
MARCO FRASCA
Keyword(s):  
Exact Solution ◽  
General Relativity ◽  
Strong Coupling ◽  
Strong Coupling Expansion ◽  
Einstein Equations ◽  
Duality Principle ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Two Dimensional Model ◽  
Analysis Application

Strong coupling expansion is computed for the Einstein equations in vacuum in the Arnowitt–Deser–Misner (ADM) formalism. The series is given by the duality principle in perturbation theory as presented in M. Frasca, Phys. Rev. A58, 3439 (1998). An example of application is also given for a two-dimensional model of gravity expressed through the Liouville equation showing that the expansion is not trivial and consistent with the exact solution, in agreement with the general analysis. Application to the Einstein equations in vacuum in the ADM formalism shows that the space–time near singularities is driven by space homogeneous equations.

Validity of the strong-coupling expansion of the two-dimensional Hubbard model

1989 ◽  
Vol 40 (7) ◽  
pp. 4431-4436 ◽  
Author(s):  
B. Friedman ◽  
X. Y. Chen ◽  
W. P. Su
Keyword(s):  
Hubbard Model ◽  
Strong Coupling ◽  
Strong Coupling Expansion ◽  
Two Dimensional

Two-dimensional topological insulators exfoliated from Na3Bi-like Dirac semimetals

2021 ◽  
Author(s):  
Xiaoqiu Guo ◽  
Ruixin Yu ◽  
Jingwen Jiang ◽  
Zhuang Ma ◽  
Xiuwen Zhang
Keyword(s):  
Physical Properties ◽  
Epitaxial Growth ◽  
Topological Insulators ◽  
2D Materials ◽  
Van Der Waals ◽  
Two Dimensional ◽  
Dirac Semimetals

Topological insulation is widely predicted in two-dimensional (2D) materials realized by epitaxial growth or van der Waals (vdW) exfoliation. Such 2D topological insulators (TI’s) host many interesting physical properties such...

scholarly journals Spontaneous Emission Spectrum of a WS2 Monolayer under Strong Coupling Conditions

2020 ◽  
Vol 4 (1) ◽  
pp. 9
Author(s):  
Vasilios Karanikolas ◽  
Ioannis Thanopulos ◽  
Emmanuel Paspalakis
Keyword(s):  
Emission Spectrum ◽  
Strong Coupling ◽  
Spontaneous Emission ◽  
Two Dimensional ◽  
Spontaneous Emission Spectrum ◽  
Light Confinement ◽  
Coupling Conditions ◽  
Two Dimensional Materials ◽  
All Optical ◽  
Ws2 Monolayer

Two-dimensional materials allow for extreme light confinement, thus becoming important candidates for all optical application platforms.  [...]

scholarly journals Multiple phases in a generalized Gross-Witten-Wadia matrix model

2020 ◽  
Vol 2020 (9) ◽  
Author(s):  
Jorge G. Russo ◽  
Miguel Tierz
Keyword(s):  
Partition Function ◽  
Matrix Models ◽  
Characteristic Polynomial ◽  
Matrix Model ◽  
Phase Structure ◽  
Unitary Matrix ◽  
Two Dimensional ◽  
Toeplitz Determinants ◽  
Dimensional Parameter ◽  
Planar Limit

Abstract We study a unitary matrix model of the Gross-Witten-Wadia type, extended with the addition of characteristic polynomial insertions. The model interpolates between solvable unitary matrix models and is the unitary counterpart of a deformed Cauchy ensemble. Exact formulas for the partition function and Wilson loops are given in terms of Toeplitz determinants and minors and large N results are obtained by using Szegö theorem with a Fisher-Hartwig singularity. In the large N (planar) limit with two scaled couplings, the theory exhibits a surprisingly intricate phase structure in the two-dimensional parameter space.

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