scholarly journals Effects of the vibrating graphene membrane and the driven classical field on an atomic system coupled to a cavity field

2021 ◽  
pp. 105012
Author(s):  
Maged Faihan Alotibi ◽  
E.M. Khalil ◽  
S. Abdel-Khalek ◽  
M.Y. Abd-Rabbou ◽  
Mohamed Omri
Keyword(s):  
Atomic System ◽  
Classical Field ◽  
Cavity Field ◽  
Graphene Membrane

Effects of the Vibrating Graphene Membrane and the Driven Classical Field on an Atomic System Coupled to a Cavity Field

2021 ◽  
Author(s):  
eied khalil ◽  
S. Abdel-Khalek ◽  
M.Y. Abd-Rabbou ◽  
Mohamed Omri ◽  
Maged Faihan Alotibi
Keyword(s):  
Atomic System ◽  
Classical Field ◽  
Cavity Field ◽  
Graphene Membrane

scholarly journals Macroscopic displaced thermal field as the entanglement catalyst

2007 ◽  
Vol 7 (8) ◽  
pp. 775-781
Author(s):  
S.-B. Zheng
Keyword(s):  
Thermal Field ◽  
Cavity Mode ◽  
Thermal State ◽  
Atomic System ◽  
Photon Number ◽  
Resonant Interaction ◽  
Entangled State ◽  
Cavity Field ◽  
Average Photon Number

We show that entanglement of multiple atoms can arise via resonant interaction with a displaced thermal field with a macroscopic photon-number. The cavity field acts as the catalyst, which is disentangled with the atomic system after the operation. Remarkably, the entanglement speed does not decrease as the average photon-number of the mixed thermal state increases. The atoms may evolve to a highly entangled state even when the photon-number of the cavity mode approaches infinity.

SCHEME FOR THE PREPARATION OF ENTANGLEMENT OF ATOMIC ENSEMBLES

2009 ◽  
Vol 07 (08) ◽  
pp. 1459-1467 ◽  
Author(s):  
LIN-LIN XU ◽  
YA-FEI YU ◽  
ZHI-MING ZHANG
Keyword(s):  
Atomic System ◽  
Vacuum State ◽  
Classical Field ◽  
Ghz State ◽  
W State ◽  
Evolution Process ◽  
Entangled States ◽  
Atomic Ensemble ◽  
Atomic Ensembles ◽  
Cavity Decay

In this paper, we present a scheme to prepare the W state and the GHZ state of many atomic ensembles based on the dynamics of the atomic system of a single control atom and an atomic ensemble dispersively coupling with a cavity, where the control atom is illuminated by a highly detuned auxiliary classical field at the same time. The dynamics of the atomic system can be described by an effective Jaynes–Cummings model (JCM) with the atomic ensemble as the bosonic mode. The preparation of the entangled states is deterministic. Because the cavity is always in the vacuum state during the whole evolution process, our scheme is less sensitive to the cavity decay.

INFLUENCE OF DETUNING ON THE INTERACTION OF A FOUR-LEVEL ATOM WITH TWO-MODE CAVITY FIELD

2008 ◽  
Vol 22 (28) ◽  
pp. 2801-2809 ◽  
Author(s):  
N. H. ABDEL-WAHAB
Keyword(s):  
Excited State ◽  
Atomic System ◽  
Photon Statistics ◽  
Cavity Field ◽  
Atomic Systems ◽  
Level Atom ◽  
Collapse Time

The atomic system on which we focus is a single four-level atom interacting with two-mode cavity fields. We obtain the wavefunction when the atom is initially in an excited state. The result presented in this context is employed to discuss the collapses–revivals phenomenon, the photon statistics and frequency sum squeezing phenomenon. The influence of the detuning on these phenomena are investigated for two four-level atomic systems. We found that the presence of the detuning leads to an increase of the collapse time while the amount of squeezing decreases. Also, the photon statistics is affected by the existence of the detuning parameters where the anti-bunching effect appears.

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