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Microwave Induced Quantum Transitions in a SQUID Ring
journal contribution
posted on 2023-06-07, 23:44 authored by R Whiteman, T D Clark, Robert Prance, H Prance, V Schollmann, J F Ralph, M Everitta, J DigginsaIn this paper we consider the interaction of a quantum-mechanical superconducting quantum interference device (SQUID) with a classical monochromatic electromagnetic (EM) field. We solve the time-dependent Schrödinger equation for the SQUID ring in this EM field. We demonstrate that non-perturbative transitions between the low-lying states of the ring, due to coherent multiphoton absorption processes, dominate, even when the single-photon energy is small compared with the energy separation between these states. We present experimental data on small-capacitance SQUID rings, interacting with microwave fields, which point to the existence of such non-perturbative transitions.
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Publication status
- Published
Journal
Journal of Modern OpticsISSN
0950-0340Publisher
Journal of Modern OpticsExternal DOI
Issue
6Volume
45Page range
1175-1184ISBN
0950-0340Department affiliated with
- Engineering and Design Publications
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- No
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- Yes
Legacy Posted Date
2012-02-06Usage metrics
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