Importance of bath dynamics for decoherence in spin systems
| dc.creator | Yuan, Shengjun | |
| dc.creator | Katsnelson, Mikhail I. | |
| dc.creator | De Raedt, Hans | |
| dc.date | 2007-07-16 | |
| dc.date.accessioned | 2026-07-07T08:18:41Z | |
| dc.date.available | 2026-07-07T08:18:41Z | |
| dc.description | We study the decoherence of two coupled spins that interact with a chaotic spin-bath environment. It is shown that connectivity of spins in the bath is of crucial importance for the decoherence of the central system. The previously found phenomenon of two-step decoherence (Phys. Rev. Lett. {\bf 90}, 210401 (2003)) turns out to be typical for the bath with a slow enough dynamics or no dynamics. For a generic random system with chaotic dynamics a conventional exponential relaxation to the pointer states takes place. Our results confirm a conjecture of Paz and Zurek (Phys. Rev. Lett. {\bf 82}, 5181 (1999)) that for weak enough interactions the pointer states are eigenstates of the central system. | |
| dc.description | submitted to Physical Review Letters | |
| dc.identifier | https://arxiv.org/abs/0707.2372 | |
| dc.identifier | http://arxiv.org/abs/0707.2372 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/134521 | |
| dc.subject | Other Condensed Matter | |
| dc.subject | Quantum Physics | |
| dc.title | Importance of bath dynamics for decoherence in spin systems | |
| dc.type | text |