Two-Dimensional Fermi Gas at Half Filling is a Luttinger Liquid

1995 ◽  
Vol 5 (11) ◽  
pp. 1481-1486
Author(s):  
E. Batkilin
Keyword(s):  
Luttinger Liquid ◽  
Fermi Gas ◽  
Two Dimensional ◽  
Half Filling

Two-Step Evolution of the Quasiparticle Band with Doping in the Two-Dimensional t-t′-t″-J Model

1998 ◽  
Vol 12 (29n31) ◽  
pp. 2914-2919
Author(s):  
Chang-De Gong ◽  
Wei-Guo Yin ◽  
P. W. Leung
Keyword(s):  
Theoretical Analysis ◽  
Excellent Agreement ◽  
Exact Diagonalization ◽  
Flat Band ◽  
Two Dimensional ◽  
Doping Dependence ◽  
Flat Region ◽  
Half Filling ◽  
Quasiparticle Band

We study the doping dependence of photoemission spectra for the t-t′-t″-J model by using the exact diagonalization technique and present a consistent theoretical analysis. Both calculations show that upon doping the enhancement of incoherent motion of holes due to the t′ and t″ terms accounts for the formation of the flat region around (π,0) in the quasiparticle dispersion at underdoped and optimally doped region, despite the absence of the flat band at half filling. Our results are in excellent agreement with resent photoemission experiments on Bi 2 Sr 2 Ca 1 Cu 2 O 8+δ [Marshall et al., Phys. Rev. Lett.76, 4841 (1996)] and Sr 2 CuO 2 Cl 2 [Wells et al., Phys. Rev. Lett.74, 964 (1995)].

scholarly journals Polarons and molecules in a two-dimensional Fermi gas

2011 ◽  
Vol 83 (2) ◽  
Author(s):  
Sascha Zöllner ◽  
G. M. Bruun ◽  
C. J. Pethick
Keyword(s):  
Fermi Gas ◽  
Two Dimensional

scholarly journals Anomalous Breaking of Scale Invariance in a Two-Dimensional Fermi Gas

2018 ◽  
Vol 121 (12) ◽  
Author(s):  
M. Holten ◽  
L. Bayha ◽  
A. C. Klein ◽  
P. A. Murthy ◽  
P. M. Preiss ◽  
...  
Keyword(s):  
Scale Invariance ◽  
Fermi Gas ◽  
Two Dimensional

Obtaining the Parameter of Degenerate Fermi Gas from Two-Dimensional Optical Density Distribution of Absorption Images

2010 ◽  
Vol 30 (3) ◽  
pp. 893-897
Author(s):  
王鹏军 Wang Pengjun ◽  
熊德智 Xiong Dezhi ◽  
陈海霞 Chen Haixia ◽  
张靖 Zhang Jing
Keyword(s):  
Density Distribution ◽  
Optical Density ◽  
Fermi Gas ◽  
Two Dimensional ◽  
Degenerate Fermi Gas

scholarly journals Two-dimensional composite solitons in a spin-orbit-coupled fermi gas in free space

2019 ◽  
Vol 70 ◽  
pp. 372-383 ◽  
Author(s):  
Pablo Díaz ◽  
David Laroze ◽  
Andrés Ávila ◽  
Boris A. Malomed
Keyword(s):  
Free Space ◽  
Fermi Gas ◽  
Spin Orbit ◽  
Two Dimensional
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