scholarly journals The Extended Convolution Approximation as a Canonical Transformation in a Degenerate Boson System

1982 ◽  
Vol 67 (1) ◽  
pp. 20-40 ◽  
Author(s):  
S. Yamasaki ◽  
M. Hirooka
Keyword(s):  
Canonical Transformation ◽  
Boson System

scholarly journals Phase transition in an interacting boson system at finite temperatures

2019 ◽  
Vol 46 (3) ◽  
pp. 035002 ◽  
Author(s):  
D Anchishkin ◽  
I Mishustin ◽  
H Stoecker
Keyword(s):  
Phase Transition ◽  
Boson System

A NEW HAMILTONIAN OF INTERACTION FOR FERMIONS

2005 ◽  
Vol 19 (13n14) ◽  
pp. 669-681 ◽  
Author(s):  
ANDREI DOLOCAN ◽  
VOICU OCTAVIAN DOLOCAN ◽  
VOICU DOLOCAN
Keyword(s):  
Interaction Energy ◽  
The Self ◽  
Lagrangian Formalism ◽  
Expectation Values ◽  
Boson System ◽  
Self Energy ◽  
Fermion Gas

Using the Lagrangian formalism we attempt to introduce a new Hamiltonian for fermions. On this basis we have evaluated the expectation values for the interaction energy between fermions via bosons. The interaction energy between two fermions via phonons becomes attractive in a degenerate fermion-gas. The interaction energy between two fermions via photons appears to be attractive in certain conditions. The self-energy of the fermion + boson system, e.g. polaron and polariton, was evaluated.

scholarly journals Canonical transformation path to gauge theories of gravity

2017 ◽  
Vol 95 (12) ◽  
Author(s):  
J. Struckmeier ◽  
J. Muench ◽  
D. Vasak ◽  
J. Kirsch ◽  
M. Hanauske ◽  
...  
Keyword(s):  
Canonical Transformation ◽  
Gauge Theories ◽  
Transformation Path ◽  
Theories Of Gravity

On condensation for an interacting boson system

1967 ◽  
Vol 48 (2) ◽  
pp. 249-261 ◽  
Author(s):  
A. Coniglio ◽  
M. Marinaro
Keyword(s):  
Boson System
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