Artículo
Carusela, M.F.; Fendrik, A.J.; Romanelli, L. "Induced current in quantum and classical ratchets" (2010) International Journal of Bifurcation and Chaos. 20(2):263-269
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Abstract:
In a previous work, we described transport in a classical, externally driven, overdamped ratchet. A transport current arises under two possible conditions: either by increasing the external driving or by adding an optimal amount of noise when the system operates below threshold. In this work, we study the underdamped case. In order to obtain transport it is necessary for the presence of both - a damping mechanism and the lack of symmetries in the potential. Some interesting properties were found: under particular conditions the system could be considered as a mass separation device, and for a specific range of the control parameter, the maximum Lyapunov exponent is reduced when noise is added to the system. We also study analytically and numerically the quantum analog of the same system and explore the conditions to find transport. © 2010 World Scientific Publishing Company.
Registro:
| Documento: | Artículo |
| Título: | Induced current in quantum and classical ratchets |
| Autor: | Carusela, M.F.; Fendrik, A.J.; Romanelli, L. |
| Filiación: | Consejo Nacional de Investigaciones Cientificas y Técnicas, Buenos Aires, Argentina Instituto de Ciencias, Universidad de General Sarmiento, J.M. Gutierrez 1150, (1613) Los Polvorines, Buenos Aires, Argentina Depatamento de Física, J. J. Giambiaggi Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, (1428) Buenos Aires, Argentina |
| Palabras clave: | Brownian motors; Noise; Ratchets; Lyapunov methods; Brownian motors; Damping mechanisms; Maximum Lyapunov exponent; Noise; Particular condition; Ratchets; Separation devices; Transport currents; Quantum chemistry |
| Año: | 2010 |
| Volumen: | 20 |
| Número: | 2 |
| Página de inicio: | 263 |
| Página de fin: | 269 |
| DOI: | http://dx.doi.org/10.1142/S0218127410025703 |
| Título revista: | International Journal of Bifurcation and Chaos |
| Título revista abreviado: | Int. J. Bifurcation Chaos |
| ISSN: | 02181274 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02181274_v20_n2_p263_Carusela |
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Citas:
---------- APA ----------
Carusela, M.F., Fendrik, A.J. & Romanelli, L. (2010) . Induced current in quantum and classical ratchets. International Journal of Bifurcation and Chaos, 20(2), 263-269.http://dx.doi.org/10.1142/S0218127410025703
---------- CHICAGO ----------
Carusela, M.F., Fendrik, A.J., Romanelli, L. "Induced current in quantum and classical ratchets" . International Journal of Bifurcation and Chaos 20, no. 2 (2010) : 263-269.http://dx.doi.org/10.1142/S0218127410025703
---------- MLA ----------
Carusela, M.F., Fendrik, A.J., Romanelli, L. "Induced current in quantum and classical ratchets" . International Journal of Bifurcation and Chaos, vol. 20, no. 2, 2010, pp. 263-269.http://dx.doi.org/10.1142/S0218127410025703
---------- VANCOUVER ----------
Carusela, M.F., Fendrik, A.J., Romanelli, L. Induced current in quantum and classical ratchets. Int. J. Bifurcation Chaos. 2010;20(2):263-269.http://dx.doi.org/10.1142/S0218127410025703
