Interactions of a two-level atom and a field with a time-varying frequency without rotating-wave approximation

2007 ◽  
Vol 273 (2) ◽  
pp. 451-459 ◽  
Author(s):  
Shuang-Yuan Xie ◽  
Fei Jia ◽  
Ya-Ping Yang
Keyword(s):  
Time Varying ◽  
Rotating Wave Approximation ◽  
Wave Approximation ◽  
Level Atom ◽  
Time Varying Frequency ◽  
Rotating Wave

Quantum Properties of the Binomial State Field Interacting With a V Type Three-level Atom Without Rotating Wave Approximation

2011 ◽  
Vol 40 (6) ◽  
pp. 937-943
Author(s):  
王旭文 WANG Xu-Wen ◽  
任学藻 REN Xue-Zao ◽  
夏建平 XIA Jian-Ping ◽  
丛红璐 CONG Hong-Lu
Keyword(s):  
Rotating Wave Approximation ◽  
Wave Approximation ◽  
Quantum Properties ◽  
Level Atom ◽  
Rotating Wave ◽  
Binomial State

TIME EVOLUTION OF THE PHASE OPERATOR IN INTERACTING FOCK SPACE

2004 ◽  
Vol 18 (16) ◽  
pp. 2287-2305
Author(s):  
P. K. DAS
Keyword(s):  
Electromagnetic Field ◽  
Time Evolution ◽  
Fock Space ◽  
Single Mode ◽  
Phase Operator ◽  
Rotating Wave Approximation ◽  
Wave Approximation ◽  
Level Atom ◽  
Rotating Wave ◽  
Interacting Fock Space

Here we discuss interaction of a single two-level atom with a single mode of interacting electromagnetic field in the Jaynes–Cummings model with the rotating wave approximation.

scholarly journals Study of Squeezing Properties in a Two-level System

1995 ◽  
Vol 48 (6) ◽  
pp. 907 ◽  
Author(s):  
Rui-hua Xie ◽  
Gong-ou Xu ◽  
Dun-huan Liu
Keyword(s):  
Single Mode ◽  
Nonlinear Interactions ◽  
Level System ◽  
Rotating Wave Approximation ◽  
Wave Approximation ◽  
Mode Field ◽  
Level Atom ◽  
Rotating Wave ◽  
Arbitrary Intensity ◽  
Intensity Dependent Coupling

We have studied the squeezing properties of a field and atom in a two-level system. The influence of nonlinear interactions (Le. the arbitrary intensity-dependent coupling of a single-mode field to a single two-level atom, the nonlinear interaction of the field with a nonlinear Kerr-like medium) on the squeezing is discussed in detail in the rotating wave approximation (RWA). We show numerically that the effect of the virtual-photon field suppresses dipole squeezing predicted in the RWA and leads to an increased squeeze revival period; the suppressed squeezing can be revived due to the presence of the nonlinear Kerr-like medium.

Quantum Entanglement of the Coherent State Field Interacting with a Λ Type Three-level Atom Without Rotating Wave Approximation

2010 ◽  
Vol 39 (9) ◽  
pp. 1621-1626
Author(s):  
夏建平 XIA Jian-ping ◽  
任学藻 REN Xue-zao ◽  
丛红璐 CONG Hong-lu ◽  
姜道来 JIANG Dao-lai ◽  
廖旭 LIAO Xu
Keyword(s):  
Coherent State ◽  
Quantum Entanglement ◽  
Rotating Wave Approximation ◽  
Wave Approximation ◽  
Level Atom ◽  
Rotating Wave

Quantum Properties of the Binomial Field Interacting with a Cascade Threelevel Atom Beyond the Rotating Wave Approximation

2012 ◽  
Vol 41 (9) ◽  
pp. 1098-1103
Author(s):  
丛红璐 CONG Honglu ◽  
唐多昌 TANG Duochang ◽  
刘雪华 LIU Xuehua ◽  
成爽 CHENG Shuang ◽  
任学藻 REN Xuezao
Keyword(s):  
Rotating Wave Approximation ◽  
Wave Approximation ◽  
Quantum Properties ◽  
Level Atom ◽  
Rotating Wave

JAYNES-CUMMINGS SPECTRA BY LINEARIZATION WITH CLIFFORD VARIABLES

1992 ◽  
Vol 06 (24) ◽  
pp. 1519-1524
Author(s):  
MARIA LUISA RASTELLO
Keyword(s):  
Energy Spectrum ◽  
Photon Number ◽  
Rotating Wave Approximation ◽  
Wave Approximation ◽  
Level Atom ◽  
Rotating Wave ◽  
Quantized Field

The effect of rotating-wave and counter-rotating terms in the energy spectrum of a single two-level atom interacting with a quantized field is investigated within a fermionic linearization scheme involving Clifford variables. After reproducing the Jaynes-Cummings results in the rotating-wave approximation, the counter-rotating terms are shown to determine an energy spectrum sensitive to low photon-number conditions.

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