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Condensed Matter > Mesoscopic Systems and Quantum Hall Effect

Title: Continuous Monitoring of Rabi Oscillations in a Josephson Flux Qubit

Authors: E. Il'ichev, N. Oukhanski, A. Izmalkov, Th. Wagner, M. Grajcar, H.-G. Meyer, A.Yu. Smirnov, Alec Maassen van den Brink, M.H.S. Amin, A.M. Zagoskin

(Submitted on 20 Mar 2003 (v1), last revised 19 Aug 2003 (this version, v3))

Abstract: Under resonant irradiation, a quantum system can undergo coherent (Rabi) oscillations in time. We report evidence for such oscillations in a _continuously_ observed three-Josephson-junction flux qubit, coupled to a high-quality tank circuit tuned to the Rabi frequency. In addition to simplicity, this method of_Rabi spectroscopy_ enabled a long coherence time of about 2.5 microseconds, corresponding to an effective qubit quality factor \~7000.

Comments:	REVTeX4, 4pp., 4 EPS figure files. v3: changed title, fixed typos; final, to appear in PRL
Subjects:	Mesoscopic Systems and Quantum Hall Effect (cond-mat.mes-hall); Superconductivity (cond-mat.supr-con); Quantum Physics (quant-ph)
Journal reference:	Phys. Rev. Lett. 91, 097906 (2003)
Cite as:	arXiv:cond-mat/0303433v3 [cond-mat.mes-hall]

Submission history

From: Alec Maassen van den Brink [view email]
[v1] Thu, 20 Mar 2003 20:47:14 GMT (612kb)
[v2] Fri, 16 May 2003 17:13:51 GMT (612kb)
[v3] Tue, 19 Aug 2003 19:51:41 GMT (613kb)

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