Temperature dependence of short-range correlations in the homogeneous electron gas

1991 ◽  
Vol 44 (24) ◽  
pp. 13291-13297 ◽  
Author(s):  
Herwig K. Schweng ◽  
Helga M. Böhm ◽  
Andreas Schinner ◽  
Wilhelm Macke
Keyword(s):  
Temperature Dependence ◽  
Short Range ◽  
Electron Gas ◽  
Short Range Correlations

Spin-Up-Spin-Down Pair Distribution Function at Metallic Densities

1972 ◽  
Vol 50 (15) ◽  
pp. 1756-1763 ◽  
Author(s):  
B. B. J. Hede ◽  
J. P. Carbotte
Keyword(s):  
Distribution Function ◽  
Kinetic Energy ◽  
Potential Energy ◽  
Born Approximation ◽  
Pair Distribution Function ◽  
Short Range ◽  
Electron Gas ◽  
Scattering Effects ◽  
Wide Range ◽  
Short Range Correlations

Correlations in an electron gas are particularly important at metallic densities because the potential energy cannot be ignored in comparison with the kinetic energy; in particular, interactions are not weak as r → 0, so that a simple Born approximation does not hold in this limit. Short-range correlations between oppositely-spinned electrons can be accounted for by an infinite series of particle–particle ladder diagrams. It leads to a Bethe–Goldstone type of equation which can be solved by an angle-averaged approximation. The resultant spin-up-down p.d.f. is positive over a wide range of metallic densities. A further correction by including particle–hole scattering effects changes the previous results only slightly.

Short-range correlations in the electron gas

1978 ◽  
Vol 17 (12) ◽  
pp. 4512-4526 ◽  
Author(s):  
Kevin Bedell ◽  
G. E. Brown
Keyword(s):  
Short Range ◽  
Electron Gas ◽  
Short Range Correlations

Distribution and Correlation of the Coding Sequence Lengths in Bacterial Genomes

2008 ◽  
Vol 59 (11) ◽  
Author(s):  
Vasile V. Morariu
Keyword(s):  
Correlation Analysis ◽  
Exponential Function ◽  
Short Range ◽  
Statistical Physics ◽  
Bacterial Genomes ◽  
Coding Sequence ◽  
Correlation Properties ◽  
Short Range Correlations ◽  
Fluctuating System

The length of coding sequence (CDS) series in bacterial genomes were regarded as a fluctuating system and characterized by the methods of statistical physics. The distribution and the correlation properties of CDS for 47 genomes were investigated. The distribution was found to be approximated by an exponential function while the correlation analysis revealed short range correlations.

scholarly journals 0νββ-decay nuclear matrix elements with self-consistent short-range correlations

2009 ◽  
Vol 79 (5) ◽  
Author(s):  
Fedor Šimkovic ◽  
Amand Faessler ◽  
Herbert Müther ◽  
Vadim Rodin ◽  
Markus Stauf
Keyword(s):  
Nuclear Matrix ◽  
Short Range ◽  
Matrix Elements ◽  
Self Consistent ◽  
Short Range Correlations
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