Entanglement in a Cavity QED system with a multi-level atom in a weakly driven two-mode cavity

2006 ◽  
Author(s):  
J. P. Clemens ◽  
P. R. Rice ◽  
R. Olson ◽  
M. L. Terraciano ◽  
L.A. Orozco
Keyword(s):  
Cavity Qed ◽  
Level Atom ◽  
Multi Level

Quantum-trajectory simulations of a two-level atom cascaded to a cavity QED laser

2003 ◽  
Vol 68 (6) ◽  
Author(s):  
Muhammad Salihi Abdul Hadi ◽  
Mohamed Ridza Wahiddin ◽  
Torla Haji Hassan
Keyword(s):  
Cavity Qed ◽  
Quantum Trajectory ◽  
Level Atom ◽  
Trajectory Simulations

scholarly journals Scheme for direct measurement of the two-mode Wigner function in cavity QED and ion traps.

2000 ◽  
Vol 53 (3) ◽  
pp. 429 ◽  
Author(s):  
Shi-Biao Zheng
Keyword(s):  
Wigner Function ◽  
Cavity Qed ◽  
Ion Traps ◽  
Resonant Interaction ◽  
Cavity Field ◽  
Ion Motion ◽  
Trapped Ion ◽  
Mode Field ◽  
Level Atom ◽  
Classical Fields

A scheme is proposed for the reconstruction of two-mode entangled states in cavity QED and ion traps. For a two-mode field we show that the Wigner function can be obtained by measuring the probability of a two-level atom being in ground states after resonant interaction with two classical fields and dispersive interaction with the two-mode cavity field displaced by resonant sources. For the two-dimensional motion of a trapped ion the Wigner function is obtained by measuring the probability of the ion in its ground electronic state after displacing the ion motion and then resonantly exciting the ion.

scholarly journals Optimal entanglement generation in cavity QED with dissipation

2009 ◽  
Vol 87 (9) ◽  
pp. 1031-1036 ◽  
Author(s):  
Jian-Song Zhang ◽  
Jing-Bo Xu
Keyword(s):  
Density Matrix ◽  
Time Evolution ◽  
Cavity Qed ◽  
Density Operator ◽  
Interaction Time ◽  
Entanglement Generation ◽  
Driving Field ◽  
Level Atom ◽  
Field Environment ◽  
Dissipative Environment

We investigate a two-level atom coupled to a cavity with a strong classical driving field in a dissipative environment and find an analytical expression for the time evolution density matrix for the system. The analytical density operator is then used to study the entanglement between the atom and cavity by considering the competing process between the atom–field interactions and the field–environment interactions. It is shown that there is an optimal interaction time for generating atom–cavity entanglement.

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