Gauge-invariant exact solution of a general separable potential model of a quantum system in a laser field

1987 ◽  
Vol 125 (4) ◽  
pp. 200-204 ◽  
Author(s):  
Farhad H.M. Faisal
Keyword(s):  
Exact Solution ◽  
Quantum System ◽  
Laser Field ◽  
Potential Model ◽  
Separable Potential ◽  
Gauge Invariant

Broadband EM radiation amplification by means of a monochromatically driven two-level system

2017 ◽  
Vol 31 (04) ◽  
pp. 1750027 ◽  
Author(s):  
Andrey V. Soldatov
Keyword(s):  
Dipole Moment ◽  
Quantum System ◽  
High Frequency ◽  
Laser Field ◽  
Diagonal Matrix ◽  
Matrix Elements ◽  
Level System ◽  
Dipole Moment Operator ◽  
Moment Operator ◽  
Radiation Amplification

It is shown that a two-level quantum system possessing dipole moment operator with permanent non-equal diagonal matrix elements and driven by external semiclassical monochromatic high-frequency electromagnetic (EM) (laser) field can amplify EM radiation waves of much lower frequency.

Analysis of light Λ hyperfragments on the separable potential model (II)

1966 ◽  
Vol 76 (3) ◽  
pp. 625-637
Author(s):  
G. Bhamathi ◽  
Indumathi Seshadri
Keyword(s):  
Potential Model ◽  
Separable Potential

Treatment of the Three- and Four-Nucleon Systems by a Generalized Separable-Potential Model

1970 ◽  
Vol 1 (1) ◽  
pp. 85-98 ◽  
Author(s):  
E. O. Alt ◽  
P. Grassberger ◽  
W. Sandhas
Keyword(s):  
Potential Model ◽  
Separable Potential

Analysis of Λ hyperfragments on the separable potential model (I)

1964 ◽  
Vol 54 ◽  
pp. 161-170 ◽  
Author(s):  
G. Bhamathi ◽  
S. Indumathi
Keyword(s):  
Potential Model ◽  
Separable Potential

WEHRL ENTROPY AND ENTANGLEMENT OF A TIME-DEPENDENT TWO-LEVEL TRAPPED ION INTERACTING WITH A LASER FIELD

2008 ◽  
Vol 06 (02) ◽  
pp. 331-339
Author(s):  
MAHMOUD ABDEL-ATY ◽  
SAYED ABDEL-KHALEK ◽  
ABDEL-SHAFY F. OBADA
Keyword(s):  
Exact Solution ◽  
Time Evolution ◽  
Laser Field ◽  
Equation Of Motion ◽  
Time Dependent ◽  
Heisenberg Equation ◽  
Wehrl Entropy ◽  
Entanglement Generation ◽  
Trapped Ion ◽  
Cat States

The time evolution of the atomic Wehrl entropy and long-lived entanglement generation using a single trapped ion interacting with a laser field are analyzed. Starting from the Heisenberg equation of motion, an exact solution of the system is obtained by indicating that there are some interesting features when a time-dependent modulating function is considered. We demonstrate that the long-living quantum entanglement can be obtained using the time-independent interaction when the field is initially in a pair cat states.

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