Aspects of quantum coherence in the optical Bloch equations
| dc.creator | Sanz, A. S. | |
| dc.creator | Han, H. | |
| dc.creator | Brumer, P. | |
| dc.date | 2006-04-12 | |
| dc.date.accessioned | 2026-07-07T07:11:51Z | |
| dc.date.available | 2026-07-07T07:11:51Z | |
| dc.description | Aspects of coherence and decoherence are analyzed within the optical Bloch equations. By rewriting the analytic solution in an alternate form, we are able to emphasize a number of unusual features: (a) despite the Markovian nature of the bath, coherence at long times can be retained; (b) the long-time asymptotic degree of coherence in the system is intertwined with the asymptotic difference in level populations; (c) the traditional population-relaxation and decoherence times, $T_1$ and $T_2$, lose their meaning when the system is in the presence of an external field, and are replaced by more general overall timescales; (d) increasing the field strength, quantified by the Rabi frequency, $Ω$, increases the rate of decoherence rather than reducing it, as one might expect; and (e) maximum asymptotic coherence is reached when the system parameters satisfy $Ω^2 = 1/(T_1 T_2)$. | |
| dc.description | 18 pages, 6 figures; to appear in J Chem Phys | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0604082 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0604082 | |
| dc.identifier | J. Chem. Phys. 124, 214106 (2006) | |
| dc.identifier | doi:10.1063/1.2200703 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/111913 | |
| dc.subject | Quantum Physics | |
| dc.title | Aspects of quantum coherence in the optical Bloch equations | |
| dc.type | text |