Laser Phase Modulation Approaches towards Ensemble Quantum Computing

Debabrata Goswami
Phys. Rev. Lett. 88, 177901 – Published 15 April 2002; Erratum Phys. Rev. Lett. 89, 279901 (2002)
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Abstract

Selective control of decoherence is demonstrated for a multilevel system by generalizing the instantaneous phase of any chirped pulse as individual terms of a Taylor series expansion. In the case of a simple two-level system, all odd terms in the series lead to population inversion, while the even terms lead to self-induced transparency. These results also hold for multiphoton transitions that do not have any lower-order photon resonance or any intermediate virtual state dynamics within the laser pulse width. Such results form the basis of a robustly implementable CNOT gate.

  • Received 8 August 2001

DOI:https://doi.org/10.1103/PhysRevLett.88.177901

©2002 American Physical Society

Erratum

Authors & Affiliations

Debabrata Goswami

  • Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India

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Vol. 88, Iss. 17 — 29 April 2002

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