Bloch-Siegert oscillations in the Rabi model with an amplitude-modulated driving field
| Autor: | S. A. Markevich, R. Fedaruk, A. P. Saiko |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Electromagnetic field
Photon Rabi cycle Field (physics) FOS: Physical sciences 02 engineering and technology 01 natural sciences Industrial and Manufacturing Engineering 010309 optics 020210 optoelectronics & photonics 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0202 electrical engineering electronic engineering information engineering Physics::Atomic Physics Instrumentation Physics Quantum Physics Condensed Matter - Mesoscale and Nanoscale Physics Oscillation Condensed Matter Physics Atomic and Molecular Physics and Optics Quantum electrodynamics Qubit Nitrogen-vacancy center Quantum Physics (quant-ph) Rabi frequency |
| DOI: | 10.48550/arxiv.2002.07165 |
| Popis: | We study the coherent dynamics of a qubit excited by an amplitude-modulated electromagnetic field under the Rabi resonance when the frequency of the low-frequency modulation field matches the Rabi frequency in the high-frequency field. Due to destructive interference of multiple photon processes at the ultrastrong coupling between the qubit and the low-frequency driving field, Rabi oscillations result exclusively from the Bloch-Siegert effect. It is directly observed in the time-resolved coherent dynamics as the Bloch-Siegert oscillation. In this case, triplets in Fourier spectra of the coherent response are transformed into doublets with the splitting between the lines equal to twice the Bloch-Siegert shift. These unusual properties are demonstrated in conditions of experiments with a nitrogen vacancy center in diamond. Comment: 9 pages, 3 figures. arXiv admin note: substantial text overlap with arXiv:1906.04528 |
| Databáze: | OpenAIRE |
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