Multi-Photon, Multi-Level Dynamics in a Superconducting Persistent-Current Qubit
超导电性
2007-05-23 v1
摘要
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.
引用
@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}
}
备注
11 pages, 4 figures