Eltschka, Christopher and Braun, Daniel and Siewert, Jens (2014) Heat bath can generate all classes of three-qubit entanglement. PHYSICAL REVIEW A, 89 (6): 062307. ISSN 1050-2947, 1094-1622
Full text not available from this repository.Abstract
It is common knowledge that coupling to a heat bath, in general, tends to reduce the entanglement in a quantum system. In recent years, increasing interest has been devoted to the opposite situation where thermal or specifically tailored environments may stabilize or even generate entanglement. We prove the universality of this phenomenon for multipartite entanglement in the frame of an exactly solvable dephasing model. We show by evaluating analytical lower bounds for the appropriate entanglement measures that a common thermal environment can dynamically generate all entanglement classes of three qubits for almost any initial product state. For sufficiently weak dissipation this entanglement may persist up to arbitrarily large times.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QUANTUM BITS; DECOHERENCE; DISSIPATION; DYNAMICS; STATES; ATOMS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 28 Oct 2019 09:10 |
| Last Modified: | 28 Oct 2019 09:10 |
| URI: | https://pred.uni-regensburg.de/id/eprint/10033 |
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