Decoherence, tunneling, and noise-induced activation in a double-potential well at high and zero temperature
We study the effects of the environment on tunneling in an open system described by a static double-well potential. We describe the evolution of a quantum state localized in one of the minima of the potential at t=0, in both the limits of high and zero environment temperature. We show that the evolu...
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2006
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v73_n6_p_Antunes http://hdl.handle.net/20.500.12110/paper_15393755_v73_n6_p_Antunes |
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paper:paper_15393755_v73_n6_p_Antunes2023-06-08T16:20:30Z Decoherence, tunneling, and noise-induced activation in a double-potential well at high and zero temperature Lombardo, Fernando César Monteoliva, Diana Beatriz Villar, Paula Inés Coherent light Computer simulation Electron tunneling Large scale systems Numerical methods Thermal effects Time series analysis Corresponding time scales Decoherence Noise-induced activation Static double-well potentials Semiconductor quantum wells We study the effects of the environment on tunneling in an open system described by a static double-well potential. We describe the evolution of a quantum state localized in one of the minima of the potential at t=0, in both the limits of high and zero environment temperature. We show that the evolution of the system can be summarized in terms of three main physical phenomena-namely, decoherence, quantum tunneling, and noise-induced activation-and we obtain analytical estimates for the corresponding time scales. These analytical predictions are confirmed by large-scale numerical simulations, providing a detailed picture of the main stages of the evolution and of the relevant dynamical processes. © 2006 The American Physical Society. Fil:Lombardo, F.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Monteoliva, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Villar, P.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v73_n6_p_Antunes http://hdl.handle.net/20.500.12110/paper_15393755_v73_n6_p_Antunes |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Coherent light Computer simulation Electron tunneling Large scale systems Numerical methods Thermal effects Time series analysis Corresponding time scales Decoherence Noise-induced activation Static double-well potentials Semiconductor quantum wells |
| spellingShingle |
Coherent light Computer simulation Electron tunneling Large scale systems Numerical methods Thermal effects Time series analysis Corresponding time scales Decoherence Noise-induced activation Static double-well potentials Semiconductor quantum wells Lombardo, Fernando César Monteoliva, Diana Beatriz Villar, Paula Inés Decoherence, tunneling, and noise-induced activation in a double-potential well at high and zero temperature |
| topic_facet |
Coherent light Computer simulation Electron tunneling Large scale systems Numerical methods Thermal effects Time series analysis Corresponding time scales Decoherence Noise-induced activation Static double-well potentials Semiconductor quantum wells |
| description |
We study the effects of the environment on tunneling in an open system described by a static double-well potential. We describe the evolution of a quantum state localized in one of the minima of the potential at t=0, in both the limits of high and zero environment temperature. We show that the evolution of the system can be summarized in terms of three main physical phenomena-namely, decoherence, quantum tunneling, and noise-induced activation-and we obtain analytical estimates for the corresponding time scales. These analytical predictions are confirmed by large-scale numerical simulations, providing a detailed picture of the main stages of the evolution and of the relevant dynamical processes. © 2006 The American Physical Society. |
| author |
Lombardo, Fernando César Monteoliva, Diana Beatriz Villar, Paula Inés |
| author_facet |
Lombardo, Fernando César Monteoliva, Diana Beatriz Villar, Paula Inés |
| author_sort |
Lombardo, Fernando César |
| title |
Decoherence, tunneling, and noise-induced activation in a double-potential well at high and zero temperature |
| title_short |
Decoherence, tunneling, and noise-induced activation in a double-potential well at high and zero temperature |
| title_full |
Decoherence, tunneling, and noise-induced activation in a double-potential well at high and zero temperature |
| title_fullStr |
Decoherence, tunneling, and noise-induced activation in a double-potential well at high and zero temperature |
| title_full_unstemmed |
Decoherence, tunneling, and noise-induced activation in a double-potential well at high and zero temperature |
| title_sort |
decoherence, tunneling, and noise-induced activation in a double-potential well at high and zero temperature |
| publishDate |
2006 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v73_n6_p_Antunes http://hdl.handle.net/20.500.12110/paper_15393755_v73_n6_p_Antunes |
| work_keys_str_mv |
AT lombardofernandocesar decoherencetunnelingandnoiseinducedactivationinadoublepotentialwellathighandzerotemperature AT monteolivadianabeatriz decoherencetunnelingandnoiseinducedactivationinadoublepotentialwellathighandzerotemperature AT villarpaulaines decoherencetunnelingandnoiseinducedactivationinadoublepotentialwellathighandzerotemperature |
| _version_ |
1768541672382136320 |