Joshi, S. K. ; Jayannavar, A. M. (2001) Entanglement induced decoherence of Aharonov-Bohm oscillations in mesoscopic rings Solid State Communications, 118 (9). pp. 469-472. ISSN 0038-1098
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00381...
Related URL: http://dx.doi.org/10.1016/S0038-1098(01)00135-1
Abstract
We study a simple model of decoherence of Aharonov-Bohm oscillations in the transmission across a metallic mesoscopic ring. In one arm of the ring, the electron interacts with a single magnetic impurity via an exchange coupling. The impurity can cause a spin-flip scattering leading to reduction of the amplitude of Aharonov-Bohm oscillations. Here decoherence occurs in spite of the absence of inelastic scattering. Its origin is traced to the interaction induced entanglement of quantum states.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | A. Nanostructures; D. Electronic Transport; D. Exchange and Superexchange |
| ID Code: | 14699 |
| Deposited On: | 12 Nov 2010 13:48 |
| Last Modified: | 03 Jun 2011 10:48 |
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