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Haya H Al Muhannadi
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Quantum state engineering by a coherent superposition of photon subtraction and addition

Author(s): Lee, SY (Lee, Su-Yong); Nha, H (Nha, Hyunchul)

We study a coherent superposition t (a) over cap + r (a) over cap dagger of field annihilation and creation operators acting on continuous variable systems and propose its application for quantum state engineering. Specifically, it is investigated how the superposed operation transforms a classical state to a nonclassical one, together with emerging nonclassical effects. We also propose an experimental scheme to implement this elementary coherent operation and discuss its usefulness to produce an arbitrary superposition of number states involving up to two photons.

Author(s):  Lee, SY (Lee, Su-Yong); Nha, H (Nha, Hyunchul)
Addresses:  [Lee, Su-Yong; Nha, Hyunchul] Texas A&M Univ Qatar, Dept Phys, Doha, Qatar
Source:  PHYSICAL REVIEW A, 82 (5): Art. No. 053812 NOV 15 2010
DOI: 10.1103/PhysRevA.82.053812
Publisher:  AMER PHYSICAL SOC
Funding Agency:  This work is supported by the NPRP grant 1-7-7-6 from Qatar National Research Fund.
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