期刊
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
卷 492, 期 1, 页码 1-30出版社
ELSEVIER
DOI: 10.1016/j.physrep.2010.03.002
关键词
Landau-Zener transition; Stuckelberg oscillations; Superconducting qubits; Multiphoton excitations; Spectroscopy; Interferometry
资金
- National Security Agency (NSA)
- Laboratory Physical Science (LPS)
- Army Research Office (ARO)
- National Science Foundation (NSF) [0726909]
- JSPS-RFBR [09-02-92114]
- Fundamental Researches State Fund [F28. 2/019]
- NAS of Ukraine [02/09-N]
A transition between energy levels at an avoided crossing is known as a Landau-Zener transition. When a two-level system (TLS) is subject to periodic driving with sufficiently large amplitude, a sequence of transitions occurs. The phase accumulated between transitions (commonly known as the Stuckelberg phase) may result in constructive or destructive interference. Accordingly, the physical observables of the system exhibit periodic dependence on the various system parameters. This phenomenon is often referred to as Landau-Zener-Stuckelberg (US) interferometry. Phenomena related to LZS interferometry occur in a variety of physical systems. In particular, recent experiments on LZS interferometry in superconducting TLSs (qubits) have demonstrated the potential for using this kind of interferometry as an effective tool for obtaining the parameters characterizing the TLS as well as its interaction with the control fields and with the environment. Furthermore, strong driving could allow for fast and reliable control of the quantum system. Here we review recent experimental results on LZS interferometry, and we present related theory. (C) 2010 Elsevier B.V. All rights reserved.
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