Abstract
Two schemes are presented for generating steady three-atom Greenberger–Horne–Zeilinger and W states in a strongly dissipative cavity via quantum feedback control. The quantum feedback control is only applied to a single atom based on quantum-jump detection to improve the fidelity of the target state. Thus, cavity decay plays a key role in obtaining the target state. The required interaction time need not be accurately controlled.
© 2015 Optical Society of America
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