Discussions of ground state in Lambda-type three-level system

2012 ◽  
Vol 10 (s1) ◽  
pp. S12701-312704
Author(s):  
Xiaohong Li Xiaohong Li ◽  
Tao Liu Tao Liu ◽  
Kelin Wang Kelin Wang
Keyword(s):  
Ground State ◽  
Level System

scholarly journals Effect of Fano Resonance in photovoltaic

2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Dong Sun
Keyword(s):  
Ground State ◽  
Fano Resonance ◽  
Coupling Parameter ◽  
Level System ◽  
Decay Channels ◽  
Atomic Systems ◽  
Absorption And Emission ◽  
Fano Interference ◽  
Detail Balance ◽  
Ground State Doublet

AbstractWe have shown that the Fano interference in the decay channels of a three-level system can lead to considerably different absorption and emission profiles. We found that a coherence can be built up in the ground state doublet, with strength depending on a coupling parameter that arises from the Fano interference. The coherence can in principle lead to breaking of the detail balance between the absorption and emission processes in atomic systems.

Coherence preservation in 3-level atom

2011 ◽  
Vol 11 (5&6) ◽  
pp. 420-433
Author(s):  
Fei Yang ◽  
Shuang Cong
Keyword(s):  
Ground State ◽  
Numerical Experiments ◽  
Control Object ◽  
System Model ◽  
Level System ◽  
Multilevel System ◽  
Control Field ◽  
Object A ◽  
Breakdown Time ◽  
Level Atom

Coherence preservation of a multilevel system subject to Markovian decoherence is studied. A Lambda-type three-level atom is selected as the system model. Coherence preservation between a ground state and the excited state of such a system is defined as the control object. A control field is designed by means of constraining the constant coherence condition. For the singularities of the control field, we qualitatively analyze the breakdown time, i.e. the time of control diverging. We obtain the region in which the state stays to maintain coherence forever in the case that the three-level system is reduced to a two-level one. For other cases, we investigate how different parameters affect the breakdown time qualitatively. Numerical experiments are implemented on a three-level quantum system and the experimental results are analyzed.

Ground state of a two-level system with phonon coupling

2000 ◽  
Vol 61 (5) ◽  
pp. 3184-3187 ◽  
Author(s):  
Vassilios Fessatidis ◽  
Jay D. Mancini ◽  
William J. Massano ◽  
Samuel P. Bowen
Keyword(s):  
Ground State ◽  
Phonon Coupling ◽  
Level System

Ground state of a dissipative two-level system

2000 ◽  
Vol 62 (23) ◽  
pp. 15579-15588 ◽  
Author(s):  
Han Rongsheng ◽  
Gao Xianlong ◽  
Wang Kelin ◽  
Li Tongzhong
Keyword(s):  
Ground State ◽  
Level System

Ground-state coherence induced oscillations in a three-level system

1987 ◽  
Vol 67 (3) ◽  
pp. 405-411
Author(s):  
J. Kurmann ◽  
H. Thomas ◽  
A. Politi
Keyword(s):  
Ground State ◽  
Level System
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