| Full text | |
| Author(s): |
Bonanca, Marcus V. S.
Total Authors: 1
|
| Document type: | Journal article |
| Source: | Brazilian Journal of Physics; v. 46, n. 3, p. 248-253, JUN 2016. |
| Web of Science Citations: | 2 |
| Abstract | |
It is usually believed that the second law necessarily implies the following statement: the faster we drive a system, the larger is the energetic cost for such manipulation. In the present paper, we show that this is not always the case. The energy necessary to drive a system is quantified by the thermodynamic work performed by the external observer. We have shown that there exists a regime in which this quantity reveals a non-monotonic decay as a function of the switching time. Although this effect can be more pronounced in thermally isolated systems, we claim that it can also be present under isothermal conditions. We illustrate our findings with a spin-1/2 in the presence of a time-dependent magnetic field. (AU) | |
| FAPESP's process: | 14/23733-6 - Workshop on Quantum Information and Thermodynamics |
| Grantee: | Marcus Vinicius Segantini Bonança |
| Support Opportunities: | Research Grants - Meeting - Brazil |
| FAPESP's process: | 12/07429-0 - Thermodynamic relations between work and information in nanometric systems |
| Grantee: | Marcus Vinicius Segantini Bonança |
| Support Opportunities: | Scholarships abroad - Research |