Survival Probability of Surface Excitations in a 2d Lattice: Non-Markovian Effects and Survival Collapse
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| Format: | Artículo científico |
| Language: | en |
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Sociedade Brasileira de Física
2006
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| _version_ | 1876436995902799872 |
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| author | E. Rufeil Fiori |
| author_facet | E. Rufeil Fiori |
| contents | Survival Probability of Surface Excitations in a 2d Lattice: Non-Markovian Effects and Survival Collapse E. Rufeil Fiori H. M. Pastawski Física, Astronomía y Matemáticas Memory effects Interference in time domain The evolution of a surface excitation in a two dimentional model is analyzed. I) It starts quadratically upto a spreading time tS: II) It follows an exponential behavior governed by a self-consistent Fermi Golden Rule.III) At longer times, the exponential is overrun by an inverse power law describing return processes governedby quantum diffusion. At this last transition time tR a survival collapse becomes possible, bringing the survivalprobability down by several orders of magnitude. We identify this strongly destructive interference as anantiresonance in the time domain. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46436512 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3B Vol.36 |
| format | Artículo científico |
| id | redalyc_46436512 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Survival Probability of Surface Excitations in a 2d Lattice: Non-Markovian Effects and Survival Collapse E. Rufeil Fiori Física, Astronomía y Matemáticas Memory effects Interference in time domain Survival Probability of Surface Excitations in a 2d Lattice: Non-Markovian Effects and Survival Collapse E. Rufeil Fiori H. M. Pastawski Física, Astronomía y Matemáticas Memory effects Interference in time domain The evolution of a surface excitation in a two dimentional model is analyzed. I) It starts quadratically upto a spreading time tS: II) It follows an exponential behavior governed by a self-consistent Fermi Golden Rule.III) At longer times, the exponential is overrun by an inverse power law describing return processes governedby quantum diffusion. At this last transition time tR a survival collapse becomes possible, bringing the survivalprobability down by several orders of magnitude. We identify this strongly destructive interference as anantiresonance in the time domain. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46436512 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3B Vol.36 |
| title | Survival Probability of Surface Excitations in a 2d Lattice: Non-Markovian Effects and Survival Collapse |
| topic | Física, Astronomía y Matemáticas Memory effects Interference in time domain |
| url | https://www.redalyc.org/articulo.oa?id=46436512 |