THERMAL ENTANGLEMENT IN A TWO-QUTRIT SYSTEM WITH NONLINEAR COUPLING UNDER NONUNIFORM EXTERNAL MAGNETIC FIELD
2008 ◽
Vol 06
(04)
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pp. 867-884
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Keyword(s):
We study the thermal entanglement of a 2-qutrit spin chain with nonlinear coupling in the presence of nonuniform magnetic field. Thermal entanglement of an arbitrary (finite-dimensional) m-partite system vanishes at some finite threshold temperature Ts. We investigate the dependence of Ts on the system's parameters, i.e. the nonlinear coupling and the magnetic field, for this 2-qutrit system. In addition, we compare two lower bounds of I-concurrence for this system and also study its dense coding capacity as a function of system's parameters.
2013 ◽
Vol 446-447
◽
pp. 986-991
2016 ◽
Vol 30
(24)
◽
pp. 1650171
2011 ◽
Vol 228-229
◽
pp. 1007-1011
1978 ◽
Vol 33
(7)
◽
pp. 749-760
◽
Keyword(s):
1983 ◽
Vol 29
(1)
◽
pp. 131-137
◽
Keyword(s):
1960 ◽
Vol 15
(3)
◽
pp. 220-226
◽