Itano, W.
(2003),
Comment on Some Implications of the Quantum Nature of Laser Fields for Quantum Computations, Physical Review A (Atomic, Molecular and Optical Physics), [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=841699
(Accessed April 25, 2024)
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Comment on Some Implications of the Quantum Nature of Laser Fields for Quantum Computations
Published
Author(s)
Abstract
A recent discussion of quantum limitations to the Fidelity with which superpositions of internal atomic energy levels can be generated by an applied laser pulse is shown to be in error. This discussion incorrectly assumed the validity of Jaynes-Cummings dynamics for an atom interacting with a laser field in free space, leading to entanglement of the atom and field systems and effective decoherence of the atomic system. If the field of the laser pulse is a multimode coherent state, then there is no decoherence of the atomic state, beyond that which can be attributed to spontaneous emission.Citation
Physical Review A (Atomic, Molecular and Optical Physics)
Volume
68
Issue
046301
Pub Type
Journals
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Keywords
Jaynes-Cummings model, matter-light interaction, quantum computation, quantum optics, Rabi flopping
Citation
Created October 14, 2003, Updated February 17, 2017