We propose a scheme for dissipative preparation of W-type entangled steady states of three atoms trapped in an optical cavity. The scheme is based on the competition between the decay processes into and out of the target state. By suitable choice of system parameters, we resolve the whole evolution process and employ the effective operator formalism to engineer four independent decay processes so that the target state becomes the stationary state of the quantum system. The scheme requires neither the preparation of definite initial states nor precise control of system parameters and preparation time.
© 2012 Optical Society of America
Original Manuscript: February 22, 2012
Revised Manuscript: April 1, 2012
Manuscript Accepted: April 16, 2012
Published: June 1, 2012
Xin-Yu Chen, Li-Tuo Shen, Zhen-Biao Yang, Huai-Zhi Wu, and Mei-Feng Chen, "Engineering W-type steady states for three atoms via dissipation in an optical cavity," J. Opt. Soc. Am. B 29, 1535-1540 (2012)