caa a22 4500 445865466 CHVBK 20180317145456.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1140/epjd/e2011-20012-9 doi (NATIONALLICENCE)springer-10.1140/epjd/e2011-20012-9 Dynamics of quantum discord in two Tavis-Cummings models with classical driving fields [Elektronische Daten] [Y. Zhang, J. Xu] We investigate the dynamics of quantum discord in a system consisting of two Tavis-Cummings models, each of which contains two atoms driven by a classical field. We compare the dynamics of quantum discord for the system with that of entanglement and show that quantum discord vanishes only asymptotically although entanglement disappears suddenly during the time evolution. Furthermore, we examine the influence of the initial states and the classical field on the discord dynamics and find that the value of quantum discord can be improved by adjusting the classical driving field. Finally, the quantum discord of two atoms in dissipative cavity is also discussed. EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2011 Zhang Y. Zhejiang Institute of Modern Physics and Physics Department, Zhejiang University, 310027, Hangzhou, P.R. China aut Xu J. Zhejiang Institute of Modern Physics and Physics Department, Zhejiang University, 310027, Hangzhou, P.R. China aut The European Physical Journal D Springer-Verlag 64/2-3(2011-10-01), 549-555 1434-6060 64:2-3<549 2011 64 10053 https://doi.org/10.1140/epjd/e2011-20012-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epjd/e2011-20012-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Y. Zhejiang Institute of Modern Physics and Physics Department, Zhejiang University, 310027, Hangzhou, P.R. China aut NATIONALLICENCE 700 1- Xu J. Zhejiang Institute of Modern Physics and Physics Department, Zhejiang University, 310027, Hangzhou, P.R. China aut NATIONALLICENCE 773 0- The European Physical Journal D Springer-Verlag 64/2-3(2011-10-01), 549-555 1434-6060 64:2-3<549 2011 64 10053 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer