DocumentCode
37584
Title
Tuning quantum discord in Josephson charge qubits system
Author
Shang Boxing ; Zhang Weiwei ; Guo Yucui ; Xi Xiaoqiang
Author_Institution
Sch. of Sci., Xi´an Univ. of Posts & Telecommun., Xi´an, China
Volume
11
Issue
13
fYear
2014
fDate
Supplement 2014
Firstpage
187
Lastpage
194
Abstract
A type of two qubits Josephson charge system is constructed, and properties of the quantum discord (QD) as well as the differences between thermal QD and thermal entanglement are investigated. A detailed calculation shows that the magnetic flux is more efficient than the voltage in tuning QD. By choosing proper system parameter the maximum QD can be realized in our two qubits Josephson charge system.
Keywords
quantum computing; quantum entanglement; Josephson charge qubit system; magnetic flux; quantum discord; system parameter; thermal QD; thermal entanglement; Correlation; Couplings; Inductance; Josephson junctions; Logic gates; Magnetic flux; SQUIDs; Josephson charge qubits; quantum discord;
fLanguage
English
Journal_Title
Communications, China
Publisher
ieee
ISSN
1673-5447
Type
jour
DOI
10.1109/CC.2014.7022544
Filename
7022544
Link To Document