caa a22 4500 445866691 CHVBK 20180317145500.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1140/epjd/e2011-10546-1 doi (NATIONALLICENCE)springer-10.1140/epjd/e2011-10546-1 Entanglement behaviors of two-mode squeezed thermal states in two different environments [Elektronische Daten] [S. Xiang, K. Song, W. Wen, Z. Shi] We study entanglement properties of two-mode squeezed thermal states subjected to two sources of decoherence: the common reservoirs and the bosonic memory Gaussian channel. For the former one, we find that there exist three different behaviors: no-sudden death, sudden death, and no-creation of entanglement. The range of parameters characterizing these processes is obtained. For the latter one, we obtain a threshold in the degree of squeezing above which the input states remain always entangled. Otherwise, no entanglement is allowed in bosonic Gaussian channel with memory effect. We show that a degree of memory for quantum channel can be help to increase the initial entanglement, while the mean number of added thermal photons is to fasten the decoherence process. EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2011 Xiang S. Department of Physics and Information Engineering, Huaihua University, 418008, Huaihua, Hunan, P.R. China aut Song K. Department of Physics and Information Engineering, Huaihua University, 418008, Huaihua, Hunan, P.R. China aut Wen W. Department of Physics and Information Engineering, Huaihua University, 418008, Huaihua, Hunan, P.R. China aut Shi Z. Department of Physics and Information Engineering, Huaihua University, 418008, Huaihua, Hunan, P.R. China aut The European Physical Journal D Springer-Verlag 62/2(2011-04-01), 289-296 1434-6060 62:2<289 2011 62 10053 https://doi.org/10.1140/epjd/e2011-10546-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epjd/e2011-10546-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xiang S. Department of Physics and Information Engineering, Huaihua University, 418008, Huaihua, Hunan, P.R. China aut NATIONALLICENCE 700 1- Song K. Department of Physics and Information Engineering, Huaihua University, 418008, Huaihua, Hunan, P.R. China aut NATIONALLICENCE 700 1- Wen W. Department of Physics and Information Engineering, Huaihua University, 418008, Huaihua, Hunan, P.R. China aut NATIONALLICENCE 700 1- Shi Z. Department of Physics and Information Engineering, Huaihua University, 418008, Huaihua, Hunan, P.R. China aut NATIONALLICENCE 773 0- The European Physical Journal D Springer-Verlag 62/2(2011-04-01), 289-296 1434-6060 62:2<289 2011 62 10053 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer