Fate of in-medium heavy quarks via a Lindblad equation
Abstract What is the dynamics of heavy quarks and antiquarks in a quark gluon plasma? Can heavy-quark bound states dissociate? Can they (re)combine? These questions are addressed by investigating a Lindblad equation that describes the quantum dynamics of the heavy quarks in a medium. The Lindblad eq...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-08-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | http://link.springer.com/article/10.1007/JHEP08(2017)064 |
| _version_ | 1818648394146512896 |
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| author | Davide De Boni |
| author_facet | Davide De Boni |
| author_sort | Davide De Boni |
| collection | DOAJ |
| description | Abstract What is the dynamics of heavy quarks and antiquarks in a quark gluon plasma? Can heavy-quark bound states dissociate? Can they (re)combine? These questions are addressed by investigating a Lindblad equation that describes the quantum dynamics of the heavy quarks in a medium. The Lindblad equations for a heavy quark and a heavy quark-antiquark pair are derived from the gauge theory, following a chain of well-defined approximations. In this work the case of an abelian plasma has been considered, but the extension to the non-abelian case is feasible. A one-dimensional simulation of the Lindblad equation is performed to extract information about bound-state dissociation, recombination and quantum decoherence for a heavy quark-antiquark pair. All these phenomena are found to depend strongly on the imaginary part of the inter-quark potential. |
| first_indexed | 2024-12-17T01:17:44Z |
| format | Article |
| id | doaj.art-b88760d2efcd4f00817f35fad8424095 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-17T01:17:44Z |
| publishDate | 2017-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-b88760d2efcd4f00817f35fad84240952022-12-21T22:08:56ZengSpringerOpenJournal of High Energy Physics1029-84792017-08-012017814510.1007/JHEP08(2017)064Fate of in-medium heavy quarks via a Lindblad equationDavide De Boni0Department of Physics, College of Science, Swansea UniversityAbstract What is the dynamics of heavy quarks and antiquarks in a quark gluon plasma? Can heavy-quark bound states dissociate? Can they (re)combine? These questions are addressed by investigating a Lindblad equation that describes the quantum dynamics of the heavy quarks in a medium. The Lindblad equations for a heavy quark and a heavy quark-antiquark pair are derived from the gauge theory, following a chain of well-defined approximations. In this work the case of an abelian plasma has been considered, but the extension to the non-abelian case is feasible. A one-dimensional simulation of the Lindblad equation is performed to extract information about bound-state dissociation, recombination and quantum decoherence for a heavy quark-antiquark pair. All these phenomena are found to depend strongly on the imaginary part of the inter-quark potential.http://link.springer.com/article/10.1007/JHEP08(2017)064Heavy Quark PhysicsQuark-Gluon PlasmaThermal Field Theory |
| spellingShingle | Davide De Boni Fate of in-medium heavy quarks via a Lindblad equation Journal of High Energy Physics Heavy Quark Physics Quark-Gluon Plasma Thermal Field Theory |
| title | Fate of in-medium heavy quarks via a Lindblad equation |
| title_full | Fate of in-medium heavy quarks via a Lindblad equation |
| title_fullStr | Fate of in-medium heavy quarks via a Lindblad equation |
| title_full_unstemmed | Fate of in-medium heavy quarks via a Lindblad equation |
| title_short | Fate of in-medium heavy quarks via a Lindblad equation |
| title_sort | fate of in medium heavy quarks via a lindblad equation |
| topic | Heavy Quark Physics Quark-Gluon Plasma Thermal Field Theory |
| url | http://link.springer.com/article/10.1007/JHEP08(2017)064 |
| work_keys_str_mv | AT davidedeboni fateofinmediumheavyquarksviaalindbladequation |