Year: 2005
Type: preprint
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.
Source: arXiv (Cornell University)
Authors: Yu, Y., Oliver, W. D., Lee, J. C., Berggren, K. K., Levitov, L. S., Orlando, T. P.
Institutions: Massachusetts Institute of Technology, MIT Lincoln Laboratory
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1624071589