Quantum Interference Between Decay Channels of a Three-Level Atom Placed Between Two Parallel Plates

2004 ◽  
Vol 21 (8) ◽  
pp. 1518-1521 ◽  
Author(s):  
Zhou Lu ◽  
Gan Zhong-Wei ◽  
Li Gao-Xiang
Keyword(s):  
Quantum Interference ◽  
Parallel Plates ◽  
Decay Channels ◽  
Level Atom

scholarly journals Quantum Interference Effects on Information Phase Space and Entropy Squeezing

Entropy ◽  
2019 ◽  
Vol 21 (2) ◽  
pp. 147 ◽  
Author(s):  
Abdel-Baset Mohamed ◽  
Shoukry Hassan ◽  
Rania Alharbey
Keyword(s):  
Phase Space ◽  
Quantum Interference ◽  
Interference Effects ◽  
Wehrl Entropy ◽  
Atomic Inversion ◽  
Entropy Squeezing ◽  
Decay Channels ◽  
Two Photon ◽  
Level Atom ◽  
Loss Of Coherence

Wehrl entropy and its density are used to investigate the dynamics of loss of coherence and information in a phase space for an atomic model of two-photon two-level atom coupled to different radiation reservoirs (namely, normal vacuum (NV), thermal field (TF) and squeezed vacuum (SV) reservoirs). Particularly, quantum interference (QI) effect, due to the 2-photon transition decay channels, has a paramount role in: (i) the atomic inversion decay in the NV case, which behaves as quantum Zeno and anti-Zeno decay effect; (ii) the coherence and information loss in the phase space; and (iii) identifying temporal information entropy squeezing. Results are also sensitive to the initial atomic state.

Spontaneous emission inhibition from a driven four-level atom in a photonic band gap material

2007 ◽  
Vol 85 (9) ◽  
pp. 981-994
Author(s):  
H Zhang ◽  
G Q Liu ◽  
H Z Zhang
Keyword(s):  
Band Gap ◽  
Spontaneous Emission ◽  
Quantum Interference ◽  
Photonic Band Gap ◽  
Coupling Model ◽  
Interference Effects ◽  
Level Atom ◽  
Photonic Band Gap Material ◽  
First Time ◽  
Photonic Band

Two models (an upper levels coupling model and a lower levels coupling model) of a four-level atom embedded in a double-band photonic crystal are adopted. The effect of spontaneous emission cancellation of such systems embedded in different reservoirs are investigated. Especially, the "trapping conditions" of such systems in photonic band gap (PBG) reservoirs are discussed for the first time. We also investigate the different quantum interference effects of the lower levels coupling model embedded in an isotropic PBG reservoir. It is interesting that when the trapping conditions are fulfilled, the additional peaks, which result from the contribution of the additional singularities of Laplace transform of the delayed Green function of the isotropic PBG modes, are eliminated.PACS Nos.: 42.50.Gy, 42.50.Ct, 42.70.Qs

Effect of quantum interference on a three-level atom driven by two laser fields

2001 ◽  
Vol 48 (6) ◽  
pp. 1059-1084 ◽  
Author(s):  
Uzma Akram ◽  
Z. Ficek ◽  
S. Swain
Keyword(s):  
Quantum Interference ◽  
Laser Fields ◽  
Level Atom
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