Thermal effects on chaotic directed transport

Autor:	Maria Elena Spina, Gabriel G. Carlo
Rok vydání:	2008
Předmět:	Condensed Matter::Quantum Gases Physics Quantum Physics Range (particle radiation) Lindblad equation Ratchet Chaotic FOS: Physical sciences Quantum chaos Quantum mechanics Thermal Statistical physics Direct integration of a beam Quantum Physics (quant-ph) Quantum
Zdroj:	Physical review. E, Statistical, nonlinear, and soft matter physics. 79(2 Pt 2)
ISSN:	1539-3755
Popis:	We study a chaotic ratchet system under the influence of a thermal environment. By direct integration of the Lindblad equation we are able to analyze its behavior for a wide range of couplings with the environment, and for different finite temperatures. We observe that the enhancement of the classical and quantum currents due to temperature depend strongly on the specific properties of the system. This makes difficult to extract universal behaviors. We have also found that there is an analogy between the effects of the classical thermal noise and those of the finite $\hbar$ size. These results open many possibilities for their testing and implementation in kicked BECs and cold atoms experiments. 5 pages, 4 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f5baf4e0bb52fa30856ad162fe13b54 https://pubmed.ncbi.nlm.nih.gov/19391825 Zobrazit plný text záznamu