Multi-Photon, Multi-Level Dynamics in a Superconducting Persistent-Current Qubit

Y. Yu; W. D. Oliver; J. C. Lee; K. K. Berggren; L. S. Levitov; T. P. Orlando

Multi-Photon, Multi-Level Dynamics in a Superconducting Persistent-Current Qubit

Superconductivity 2007-05-23 v1

Authors: Y. Yu , W. D. Oliver , J. C. Lee , K. K. Berggren , L. S. Levitov , T. P. Orlando

Abstract

Single-, two-, and three-photon transitions were driven amongst five quantum states of a niobium persistent-current qubit. A multi-level energy-band diagram was extracted using microwave spectroscopy, and avoided crossings were directly measured between the third and fourth excited states. The energy relaxation times between states connected by single-photon and multi-photon transitions were approximately 30 - 100 microseconds. Three-photon coherent oscillations were observed between the qubit ground and fourth excited states with a decoherence time of approximately 50 nanoseconds.

Keywords

circuit quantum electrodynamics quantum optics atomic spectroscopy

Cite

@article{arxiv.cond-mat/0508587,
  title  = {Multi-Photon, Multi-Level Dynamics in a Superconducting Persistent-Current Qubit},
  author = {Y. Yu and W. D. Oliver and J. C. Lee and K. K. Berggren and L. S. Levitov and T. P. Orlando},
  journal= {arXiv preprint arXiv:cond-mat/0508587},
  year   = {2007}
}

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11 pages, 4 figures

Multi-Photon, Multi-Level Dynamics in a Superconducting Persistent-Current Qubit

Abstract

Keywords

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