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Dark periods and revivals of entanglement in a two-qubit system
Open accessAbstract
In a recent paper Yu and Eberly [Phys. Rev. Lett. 93, 140404 (2004)] have shown that two initially entangled and afterward not interacting qubits can become completely disentangled in a finite time. We study transient entanglement between two qubits coupled collectively to a multimode vacuum field, assuming that the two-qubit system is initially prepared in an entangled state produced by the two-photon coherences, and find the unusual feature that the irreversible spontaneous decay can lead to a revival of the entanglement that has already been destroyed. The results show that this feature is independent of the coherent dipole-dipole interaction between the atoms but it depends critically on whether or not collective damping is present.
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Citations
Cites
Entanglement of Formation of an Arbitrary State of Two Qubits
Wootters, W. K. (1998) · Physical Review Letters · doi:10.1103/physrevlett.80.2245 · Cited by 8,290
Cited by
Horodecki, R., Horodecki, P., Horodecki, M., & Horodecki, K. (2009) · Reviews of Modern Physics · doi:10.1103/revmodphys.81.865 · Cited by 10,118
Revival of quantum correlations without system-environment back-action
Lo Franco, R., Bellomo, B., Andersson, E., & Compagno, G. (2012) · Physical Review A · doi:10.1103/physreva.85.032318 · Cited by 188
Cattaneo, M., Giorgi, G. L., Maniscalco, S., & Zambrini, R. (2019) · New Journal of Physics · doi:10.1088/1367-2630/ab54ac · Cited by 169
Metadata
- Authors
- Ficek, Z., & Tanaś, R.
- Venue
- Physical Review A
- Publisher
- American Physical Society (APS)
- Published
- 2006-08-30
- Volume
- 74
- Issue
- 2
- ISSN
- 0556-2791 (ISSN-L)
- 1050-2947
- 1094-1622
- OpenAlex
- W2161152823
- Cited by
- 379
- References
- 1
- FWCI
- 41.33
- Type
- journal article
- Language
- en
- Open access
- green
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