Laser phase modulation approaches towards ensemble quantum computing

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.

10 pages, 4 figures, PRL (accepted)

References in corpus (1)

• Coherent Control of Multiphoton Transitions with Femtosecond pulse shaping

Cited by in corpus (4)

• Adiabatic Quantum Computing with Phase Modulated Laser Pulses
• Selective excitation in a three-state system using a hybrid adiabatic-nonadiabatic interaction
• Impact of Decoherence on Internal State Cooling using Optical Frequency Combs
• Ultrafast Pulse Shaping Approaches to Quantum Computing