THE EFFECT OF SPREAD OF THE ATOMIC WAVE FUNCTION ON SOME STATISTICAL PROPERTIES OF THE FIELD

This paper deals with the system of a two-level atom interacting with a quantized single-mode standing-wave cavity field, which is entangled with the centre-of-mass motion of the atom under the coexistence of the Kerr nonlinearity. We investigate the effect of the spread of the initial atomic wave function on some quantum statistical properties (such as Q distribution function, entropy and phase distribution) with or without the Kerr-like medium. Numerical computations and a discussion of the results are presented.

Download Full-text

Atomic Wave-Function Imaging via Optical Coherence

Physical Review Letters ◽

10.1103/physrevlett.74.1331 ◽

1995 ◽

Vol 74 (8) ◽

pp. 1331-1334

Author(s):

C. Schnurr ◽

T. A. Savard ◽

L. J. Wang ◽

J. E. Thomas

Keyword(s):

Wave Function ◽

Optical Coherence ◽

Atomic Wave Function ◽

Atomic Wave

Download Full-text

INTERFEROMETRIC MEASUREMENT OF AN ATOMIC WAVE FUNCTION BY USING A STANDING WAVE METHOD

Journal of Zhejiang University SCIENCE A ◽

10.1631/jzus.2000.0275 ◽

2000 ◽

Vol 1 (3) ◽

pp. 275

Author(s):

Zheng-dong LIU

Keyword(s):

Wave Function ◽

Standing Wave ◽

Wave Method ◽

Atomic Wave Function ◽

Atomic Wave ◽

Interferometric Measurement ◽

Standing Wave Method

Download Full-text

Atomic wave function, Slater exchange and phonons in Li

Journal of Physics F Metal Physics ◽

10.1088/0305-4608/3/3/015 ◽

1973 ◽

Vol 3 (3) ◽

pp. 571-576 ◽

Cited By ~ 6

Author(s):

C M Kachhava

Keyword(s):

Wave Function ◽

Atomic Wave Function ◽

Atomic Wave

Download Full-text

ENTANGLEMENT OF A TWO-LEVEL ATOM INTERACTING WITH A NEW STRUCTURE OF A GENERALIZED NONLINEAR STARK SHIFT VIA Ξ CONFIGURATION

International Journal of Modern Physics B ◽

10.1142/s0217979211100898 ◽

2011 ◽

Vol 25 (19) ◽

pp. 2621-2636 ◽

Cited By ~ 2

Author(s):

E. M. KHALIL ◽

M. M. A. AHMED ◽

A.-S. F. OBADA

Keyword(s):

Optical Cavity ◽

Center Of Mass ◽

Single Mode ◽

Stark Shift ◽

Mass Motion ◽

Shift Parameter ◽

Atomic Inversion ◽

Level Atom ◽

Quantized Field ◽

Q Function

The problem of a two-level atom interacting with single mode cavity field is considered, however, the optical cavity is filled with new structure of a generalized nonlinear Stark shift via Ξ configuration. One starts with a three-level trapped atom interacting with the quantized field of center of mass motion thus a Hamiltonian for one-phonon process with nonlinearities is derived. Through the elimination of the intermediate level by using the adiabatic elimination method, we generate a new structure of effective Hamiltonian for a two-level atom with a nonlinear Stark shift. The temporal evolution of the atomic inversion is studied, we introduce that in the presence of the Stark shift parameter the atom leaves in a maximal entangled sate. We use the von Neuman entropy to measure the degree of entanglement between the atom and the field. After adding the nonlinear Stark shift the system never reaches the pure state. Also we study the Q-function for obtaining more information in phase space for this system. These aspects are sensitive to changes in the Stark shift parameter. The results shows that the effect of the nonlinearity in the Stark shift changes the quasiperiod of the field entropy and hence the entanglement between the particle and the field.

Download Full-text

A STUDY OF THE INTERACTION BETWEEN A FIVE-LEVEL ATOM AND A SINGLE-MODE CAVITY FIELD: FAN-TYPE

Modern Physics Letters B ◽

10.1142/s0217984911027303 ◽

2011 ◽

Vol 25 (24) ◽

pp. 1971-1982 ◽

Cited By ~ 2

Author(s):

N. H. ABDEL-WAHAB

Keyword(s):

Dynamical Behavior ◽

Single Mode ◽

Kerr Nonlinearity ◽

Coupling Constants ◽

Kerr Medium ◽

Cavity Field ◽

Atomic Inversion ◽

Input Field ◽

Level Atom ◽

Single Mode Cavity

In this paper, a model describing the interaction of a five-level (85 Rb ) atom with one-mode cavity field including Kerr nonlinearity is discussed. Analytical solution for this model is presented when the atom is initially prepared in its upper state. The obtained results are then employed to examine the dynamical behavior of atomic inversion, field statistics and field squeezing when the input field is initially considered in a coherent state. It is found that the atom-field properties are influenced by the changing of the coupling constants, the detuning parameters and the Kerr medium.

Download Full-text