scholarly journals Ladders in a magnetic field: a strong coupling approach

1998 ◽  
Vol 6 (2) ◽  
pp. 201-205 ◽  
Author(s):  
F. Mila
Keyword(s):  
Magnetic Field ◽  
Strong Coupling ◽  
Coupling Approach

Strong Coupling and the SuperfluidHe3A−BTransition in a Magnetic Field

1981 ◽  
Vol 47 (6) ◽  
pp. 428-431 ◽  
Author(s):  
J. D. Feder ◽  
D. O. Edwards ◽  
W. J. Gully ◽  
K. A. Muething ◽  
H. N. Scholz
Keyword(s):  
Magnetic Field ◽  
Strong Coupling

INFLUENCE OF LATTICE VIBRATION ON THE GROUND STATE OF MAGNETOPOLARON IN A PARABOLIC QUANTUM DOT

2010 ◽  
Vol 24 (27) ◽  
pp. 2705-2712 ◽  
Author(s):  
EERDUNCHAOLU ◽  
WEI XIN ◽  
YUWEI ZHAO
Keyword(s):  
Magnetic Field ◽  
Strong Coupling ◽  
Ground State Energy ◽  
Vibration Frequency ◽  
Ground State ◽  
Weak Coupling ◽  
State Energy ◽  
Cyclotron Frequency ◽  
Lattice Vibration ◽  
The Magnetic Field

Influence of the lattice vibration on the properties of the magnetopolaron in the parabolic quantum dots (QDs) is studied by using the Huybrechts' linear combination operator and Lee–Low–Pines (LLP) transformation methods. The expressions for the vibration frequency and the ground-state energy of the magnetopolaron as functions of the confinement strength of the QDs, the magnetic field and temperature are derived under the strong and weak coupling, respectively. The results of the numerical calculations show that the changes of the vibration frequency and ground-state energy of the magnetopolaron with the confinement strength of the QDs, the magnetic field and temperature are different under different couplings. The vibration frequency and the ground-state energy of the weak-coupling magnetopolaron and the vibration frequency of the strong-coupling magnetopolaron will increase with increase of the confinement strength of the QDs and cyclotron frequency, the vibration frequency and ground-state energy of the strong-coupling magnetopolaron. However, the ground-state energy of the weak-coupling magnetopolaron will decrease with increase of the temperature. The dependence of the ground-state energy of the strong-coupling magnetopolaron on the confinement strength of the QDs and cyclotron frequency is strongly influenced by the temperature. The remarkable influence of the temperature on the ground-state energy of the magnetopolaron arises when the temperature is relatively higher.

scholarly journals Strong coupling approach to the supersymmetric Kondo model

2000 ◽  
Vol 586 (3) ◽  
pp. 641-667 ◽  
Author(s):  
P Coleman ◽  
C Pépin ◽  
A.M Tsvelik
Keyword(s):  
Strong Coupling ◽  
Kondo Model ◽  
Coupling Approach
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