Collective excitation frequencies and damping rates of a two-dimensional deformed trapped Bose gas above the critical temperature

2000 ◽  
Vol 63 (1) ◽  
Author(s):  
Tarun Kanti Ghosh
2001 ◽  
Vol 15 (20) ◽  
pp. 837-846 ◽  
Author(s):  
M. CRISAN ◽  
I. TIFREA ◽  
D. BODEA ◽  
I. GROSU

We applied the Renormalization Group method at finite temperature to reconsider the two-dimensional dilute Bose gas. The general flow equations are obtained for the case of arbitrary dimensions, and by considering the two-dimensional limit, we estimate the value of the critical temperature, coherence length and specific heat. The value of the critical temperature is in agreement with previous calculations performed using the t-matrix method. The coherence length and the specific heat present a non-universal behavior, a logarithmic temperature dependence in the critical region being identified.


Nanoscale ◽  
2021 ◽  
Author(s):  
Qian Chen ◽  
Ruqian Wang ◽  
Zhaocong Huang ◽  
Shijun Yuan ◽  
Haowei Wang ◽  
...  

The magnetic semiconductor with high critical temperature has long been the focus in material science and recently is also known as one of the fundamental questions in two-dimensional (2D) materials....


2021 ◽  
Vol 3 (1) ◽  
Author(s):  
A. J. Groszek ◽  
P. Comaron ◽  
N. P. Proukakis ◽  
T. P. Billam

2017 ◽  
Vol 95 (1) ◽  
Author(s):  
J. L. Ville ◽  
T. Bienaimé ◽  
R. Saint-Jalm ◽  
L. Corman ◽  
M. Aidelsburger ◽  
...  
Keyword(s):  
Bose Gas ◽  

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