Effects of the Bloch-Siegert Oscillation on the Precision of Qubit Rotations: Direct Two-Level vs. Off-Resonant Raman Excitation

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dc.creatorPradhan, Prabhakar
dc.creatorCardoso, George C.
dc.creatorMorzinski, Jacob
dc.creatorShahriar, M. S.
dc.date2004-02-18
dc.date2004-05-28
dc.date.accessioned2026-07-07T06:09:01Z
dc.date.available2026-07-07T06:09:01Z
dc.descriptionIn a direct two-level qubit system, when the Rabi frequency is comparable to the resonance frequency, the rotating wave approximation is not appropriate. In this case, the Rabi oscillation is accompanied by another oscillation at twice the frequency of the driving field, the so called Bloch-Siegert oscillation (BSO), which depends on the initial phase of the driving field. This oscillation may restrict the precise rotation of a qubit made of direct two-level system. Here, we show that in case of an effectively two-level lambda system, the BSO is inherently negligible, implying a greater precision for rotation of a qubit made of such a lambda system when compared to a direct two-level qubit in a strong driving field.
dc.description20 pages, 9 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0402122
dc.identifierhttp://arxiv.org/abs/quant-ph/0402122
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/91833
dc.subjectQuantum Physics
dc.titleEffects of the Bloch-Siegert Oscillation on the Precision of Qubit Rotations: Direct Two-Level vs. Off-Resonant Raman Excitation
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