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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/4630

Title: Decoherence due to elastic rayleigh scattering
Authors: Uys, H
Biercuk, MJ
VanDevender, AP
Ospelkaus, C
Meiser, D
Ozeri, R
Bollinger, JJ
Keywords: Decoherence
Ion trap
Elastic Rayleigh scattering
Quantum information
Issue Date: Nov-2010
Publisher: American Physical Society
Citation: Uys,H, Biercuk, MJ, VanDevender, AP et al. 2010. Decoherence due to elastic rayleigh scattering. Physical Review Letters, Vol. 105 (200401), pp 200401-1 to 200401-4
Series/Report no.: Journal Article
Abstract: The authors present theoretical and experimental studies of the decoherence of hyperfine ground-state superpositions due to elastic Rayleigh scattering of light off resonant with higher lying excited states. They demonstrate that under appropriate conditions, elastic Rayleigh scattering can be the dominant source of decoherence, contrary to previous discussions in the literature. They show that the elastic-scattering decoherence rate of a two-level system is given by the square of the difference between the elastic scattering amplitudes for the two levels, and that for certain detunings of the light, the amplitudes can interfere constructively even when the elastic-scattering rates from the two levels are equal. They confirm this prediction through calculations and measurements of the total decoherence rate for a superposition of the valence electron spin levels in the ground state of 9Beþ in a 4.5 T magnetic field.
Description: Copyright: 2010 American Physical Society
URI: http://prl.aps.org/pdf/PRL/v105/i20/e200401
ISSN: 0031-9007
Appears in Collections:Laser physics and technology
Laser materials processing
Manufacturing science and technology
General science, engineering & technology

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