dc.contributor.author | Tan, Xinsheng | |
dc.contributor.author | Zhang, Dan-Wei | |
dc.contributor.author | Zhang, Zhentao | |
dc.contributor.author | Yu, Yang | |
dc.contributor.author | Han, Siyuan | |
dc.contributor.author | Zhu, Shi-Liang | |
dc.date.accessioned | 2014-07-02T19:21:01Z | |
dc.date.available | 2014-07-02T19:21:01Z | |
dc.date.issued | 2014-01-17 | |
dc.identifier.citation | Xinsheng Tan et al. (2014). Demonstration of Geometric Landau-Zener
Interferometry in a Superconducting Qubit. Phys. Rev. Lett. 112:27001.
http://dx.doi.org/10.1103/PhysRevLett.112.027001 | |
dc.identifier.uri | http://hdl.handle.net/1808/14455 | |
dc.description.abstract | Geometric quantum manipulation and Landau-Zener interferometry have been separately explored in
many quantum systems. In this Letter, we combine these two approaches to study the dynamics of a superconducting
phase qubit. We experimentally demonstrate Landau-Zener interferometry based on the pure
geometric phases in this solid-state qubit. We observe the interference caused by a pure geometric phase
accumulated in the evolution between two consecutive Landau-Zener transitions, while the dynamical
phase is canceled out by a spin-echo pulse. The full controllability of the qubit state as a function of
the intrinsically robust geometric phase provides a promising approach for quantum state manipulation. | |
dc.description.sponsorship | We thank X. Wen, G. Sun, B. Mao, and M. Gong for
their helpful discussion. This work is supported by the
SKPBR of China (Grants No. 2011CB922104 and
No. 2011CBA00200), NSFC (Grants No. 91021003,
No. 11274156, and No. 11125417), NSF of Jiangsu
(BK2010012), PAPD, and the PCSIRT. S. Han is supported
in part by the U.S. NSF (PHY-1314861). We gratefully
acknowledge Northrop Grumman ES in Baltimore, MD,
for foundry support and thank R. Lewis, A. Pesetski, E.
Folk, and J. Talvacchio for technical assistance. X. T.,
D.-W. Z., and Z. Z. contributed equally to this work. | |
dc.publisher | American Physical Society | |
dc.title | Demonstration of Geometric Landau-Zener Interferometry in a Superconducting Qubit | |
dc.type | Article | |
kusw.kuauthor | Tan, Xinsheng | |
kusw.kuauthor | Han, Siyuan | |
kusw.kudepartment | Department of Physics and Astronomy | |
kusw.oastatus | na | |
dc.identifier.doi | 10.1103/PhysRevLett.112.027001 | |
kusw.oaversion | Scholarly/refereed, publisher version | |
kusw.oapolicy | This item does not meet KU Open Access policy criteria. | |
dc.rights.accessrights | openAccess | |