dc.contributor.author | Sun, Guozhu | |
dc.contributor.author | Wen, Xueda | |
dc.contributor.author | Mao, Bo | |
dc.contributor.author | Chen, Jian | |
dc.contributor.author | Yu, Yang | |
dc.contributor.author | Wu, Peiheng | |
dc.contributor.author | Han, Siyuan | |
dc.date.accessioned | 2014-04-15T19:31:56Z | |
dc.date.available | 2014-04-15T19:31:56Z | |
dc.date.issued | 2010-08-10 | |
dc.identifier.citation | Sun, Guozhu, Xueda Wen, Bo Mao, Jian Chen, Yang Yu, Peiheng Wu, and Siyuan Han. 2010. “Tunable Quantum Beam Splitters for Coherent Manipulation of a Solid-State Tripartite Qubit System.” Nature Communications 1 (5): 1–7. http://dx.doi.org/10.1038/ncomms1050 | |
dc.identifier.uri | http://hdl.handle.net/1808/13505 | |
dc.description.abstract | Coherent control of quantum states is at the heart of implementing solid-state quantum processors and testing quantum mechanics at the macroscopic level. Despite significant progress made in recent years in controlling single- and bi-partite quantum systems, coherent control of quantum wave function in multipartite systems involving artificial solid-state qubits has been hampered due to the relatively short decoherence time and lack of precise control methods. Here we report the creation and coherent manipulation of quantum states in a tripartite quantum system, which is formed by a superconducting qubit coupled to two microscopic two-level systems (TLSs). The avoided crossings in the system's energy-level spectrum due to the qubit–TLS interaction act as tunable quantum beam splitters of wave functions. Our result shows that the Landau–Zener–Stückelberg interference has great potential in precise control of the quantum states in the tripartite system. | |
dc.description.sponsorship | This work is partially supported by NCET, NSFC (10704034,10725415), 973 Program (2006CB601006), the State Key Program for Basic Research of China (2006CB921801) and NSF Grant No. DMR-0325551. We thank Northrop Grumman ES in Baltimore, MD, for technical and foundry support and thank R. Lewis, A. Pesetski, E. Folk and J. Talvacchio for technical assistance. We thank B. Ruzicka for editing the paper. | |
dc.publisher | Macmillan Publishers Limited | |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial- Share Alike 3.0 Unported License. To view a copy of this license, visit http:// creativecommons.org/licenses/by-nc-sa/3.0/ | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/3.0/ | |
dc.subject | Physical Sciences | |
dc.subject | Applied physics | |
dc.subject | Condensed matter | |
dc.subject | Optical Physics | |
dc.title | Tunable quantum beam splitters for coherent manipulation of a solid-state tripartite qubit system | |
dc.type | Article | |
kusw.kuauthor | Sun, Guozhu | |
kusw.kuauthor | Mao, Bo | |
kusw.kuauthor | Siyuan, Han | |
kusw.kudepartment | Department of Physics and Astronomy | |
kusw.oastatus | fullparticipation | |
dc.identifier.doi | 10.1038/ncomms1050 | |
kusw.oaversion | Scholarly/refereed, publisher version | |
kusw.oapolicy | This item meets KU Open Access policy criteria. | |
dc.rights.accessrights | openAccess | |