Entanglement sudden death of higher rank boundary qubit-qutrit states

Author(s):  
Paulson K. George
2017 ◽  
Vol 34 (3) ◽  
pp. 681 ◽  
Author(s):  
Ashutosh Singh ◽  
Siva Pradyumna ◽  
A. R. P. Rau ◽  
Urbasi Sinha

2015 ◽  
Vol 15 (3) ◽  
pp. 1117-1133
Author(s):  
Gregg Jaeger ◽  
David Simon ◽  
Alexander V. Sergienko

2009 ◽  
Vol 42 (19) ◽  
pp. 195507 ◽  
Author(s):  
W B Cardoso ◽  
A T Avelar ◽  
B Baseia ◽  
N G de Almeida

2016 ◽  
Vol 94 (1) ◽  
Author(s):  
Laura T. Knoll ◽  
Christian T. Schmiegelow ◽  
Osvaldo Jiménez Farías ◽  
Stephen P. Walborn ◽  
Miguel A. Larotonda

2010 ◽  
Vol 08 (05) ◽  
pp. 755-763
Author(s):  
G. W. FORD ◽  
R. F. O'CONNELL

We consider the case of a pair of particles initially in a superposition state corresponding to a separated pair of wave packets. In contrast to a previous related work, we avoid a master equation approach and we calculate exactly the time development of this non-Gaussian state due to interaction with an arbitrary heat bath. We find that coherence decays continuously, as expected. We then investigate entanglement and find that at a finite time the system becomes separable (not entangled). Thus, we see that entanglement sudden death is also prevalent in continuous variable systems which should raise concern for the designers of entangled systems.


2011 ◽  
Vol 10 (5) ◽  
pp. 705-715 ◽  
Author(s):  
Taotao Hu ◽  
Hang Ren ◽  
Kang Xue

2010 ◽  
Vol 24 (26) ◽  
pp. 2635-2645
Author(s):  
CHUAN-JIA SHAN ◽  
TAO CHEN ◽  
JI-BING LIU ◽  
WEI-WEN CHENG ◽  
TANG-KUN LIU ◽  
...  

By analytically solving the Lindblad form of the master equation, we investigate entanglement dynamics of two qubits coupled via the XY interaction, where each qubit is interacting with an independent reservoir with the squeezing parameters and squeezing angles. In the weak-squeezed reservoir, we show that the entanglement sudden death and entanglement sudden birth will happen for various entangled states. Some initial product states evolve into entangled ones, initially entangled states lose completely or partially their entanglement. The effects of varying the degree of entanglement of the initial states, the spin chain system parameters and different values of the degree of squeezing on the sudden death, revival and birth times are analyzed in detail. We also see that the steady state concurrence appears in the squeezed dissipative environments, which is affected by both the system parameters and the degree of squeezing.


2009 ◽  
Vol 282 (17) ◽  
pp. 3652-3655 ◽  
Author(s):  
Jian-Song Zhang ◽  
Jing-Bo Xu

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