Polarization qubit phase gate between two far-infrared pulses in three-coupled quantum wells
JOSA B, Vol. 27, Issue 9, pp. 1792-1798 (2010)
http://dx.doi.org/10.1364/JOSAB.27.001792
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Abstract
The cross-Kerr nonlinearity arising between two far-infrared (FIR) pulses is investigated in a three-coupled-quantum-well (TCQW) structure based on intersubband transitions. The results show that the giant Kerr nonlinearity with a relatively large cross-phase-modulation phase shift can be used for realizing polarization quantum phase gate in this TCQW structure. Such a semiconductor system is much more practical than its atomic counterpart because of its flexible design and the wide tunable parameters. This protocol may have potential applications in FIR all-optical switch design and quantum information processing with solid-state materials.
© 2010 Optical Society of America
OCIS Codes
(230.5590) Optical devices : Quantum-well, -wire and -dot devices
(270.0270) Quantum optics : Quantum optics
(270.5585) Quantum optics : Quantum information and processing
ToC Category:
Quantum Optics
History
Original Manuscript: May 19, 2010
Revised Manuscript: July 13, 2010
Manuscript Accepted: July 15, 2010
Published: August 12, 2010
Citation
Xiangying Hao, Liu-Gang Si, Chunling Ding, Pei Huang, Jiahua Li, and Xiaoxue Yang, "Polarization qubit phase gate between two far-infrared pulses in three-coupled quantum wells," J. Opt. Soc. Am. B 27, 1792-1798 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-9-1792
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