Invariant quantum discord in qubit-qutrit systems under local dephasing

Karpat, Göktuğ and Gedik, Zafer (2012) Invariant quantum discord in qubit-qutrit systems under local dephasing. (Accepted/In Press)

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Abstract

We investigate the dynamics of quantum discord and entanglement for a class of mixed qubit-qutrit states assuming that only the qutrit is under the action of a dephasing channel. We demonstrate that even though the entanglement in the qubit-qutrit state disappears in a finite time interval, partial coherence left in the system enables quantum discord to remain invariant throughout the whole time evolution.

Item Type:	Article
Subjects:	Q Science > QC Physics > QC170 Atomic physics. Quantum theory.
ID Code:	20492
Deposited By:	Zafer Gedik
Deposited On:	08 Dec 2012 15:41
Last Modified:	16 Jan 2014 21:23

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Invariant quantum discord in qubit-qutrit systems under local dephasing. (deposited 08 Dec 2012 15:41) [Currently Displayed]
- Invariant quantum discord in qubit-qutrit systems under local dephasing. (deposited 16 Jan 2014 21:30)

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