scholarly journals Finite-temperature momentum distribution of a trapped Fermi gas

2006 ◽  
Vol 74 (1) ◽  
Author(s):  
Qijin Chen ◽  
C. A. Regal ◽  
D. S. Jin ◽  
K. Levin
Keyword(s):  
Momentum Distribution ◽  
Finite Temperature ◽  
Fermi Gas

THE SPECIFIC HEAT OF A FERMI GAS AT LOW TEMPERATURE: A CLOSER LOOK AT THE lnT BEHAVIOR

1999 ◽  
Vol 13 (28) ◽  
pp. 3357-3367 ◽  
Author(s):  
A. REBEI ◽  
W. N. G. HITCHON
Keyword(s):  
Low Temperature ◽  
Specific Heat ◽  
Finite Temperature ◽  
Thermodynamic Potential ◽  
Fermi Gas ◽  
Zero Temperature

At finite temperature, a Fermi gas can have states that simultaneously hold a particle and a hole with a finite probability. This gives rise to a new set of diagrams that are absent at zero temperature. The so called "anomalous" diagram is just one of the new diagrams. We have already studied the contribution of these new diagrams to the thermodynamic potential (Phys. Lett.A224, 127 (1996)). Here we continue that work and calculate their effect on the specific heat. We will also calculate the finite temperature contribution of the ring diagrams. We conclude that the ln T behavior of the specific heat due to exchange gets canceled by the new contribution of the new diagrams, and that screening is not essential to resolve this anomaly.

Momentum distribution and the universal contact of a unitary Fermi gas with particle-hole fluctuation

2018 ◽  
Vol 32 (21) ◽  
pp. 1850249 ◽  
Author(s):  
Xiao-Xia Ruan ◽  
Hao Gong ◽  
Zheng-Ling Wang ◽  
Hong-Shi Zong
Keyword(s):  
Experimental Data ◽  
Momentum Distribution ◽  
Fermi Gas ◽  
Normal Phase ◽  
Large Momentum ◽  
Matrix Approximation ◽  
Self Consistent ◽  
Theoretical Predictions ◽  
Unitary Fermi Gas ◽  
T Matrix

We compute the momentum distribution of a homogeneous Fermi gas at unitarity in the normal phase within the framework of the non-self-consistent T-matrix approximation with particle-hole fluctuation. From the large-momentum behavior of momentum distribution, we obtain the contact for the unitary Fermi gas. We also compare our results with experimental data and other theoretical predictions.

Finite-temperature dynamics of shock waves in an ultracold Fermi gas

2018 ◽  
Vol 98 (1) ◽  
Author(s):  
Ria Rushin Joseph ◽  
Laura E. C. Rosales-Zárate ◽  
Peter D. Drummond
Keyword(s):  
Shock Waves ◽  
Finite Temperature ◽  
Fermi Gas ◽  
Ultracold Fermi Gas ◽  
Temperature Dynamics

The one-body momentum distribution of nuclear matter at finite temperature

2008 ◽  
Vol 808 (1-4) ◽  
pp. 60-72 ◽  
Author(s):  
M. Modarres ◽  
A. Rajabi ◽  
H.R. Moshfegh
Keyword(s):  
Nuclear Matter ◽  
Momentum Distribution ◽  
Finite Temperature ◽  
The One

scholarly journals Momentum Distribution and Contact of the Unitary Fermi Gas

2011 ◽  
Vol 106 (20) ◽  
Author(s):  
Joaquín E. Drut ◽  
Timo A. Lähde ◽  
Timour Ten
Keyword(s):  
Momentum Distribution ◽  
Fermi Gas ◽  
Unitary Fermi Gas
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