MPI für Physik / YB 2016 |
|Holographic entanglement entropy: temperature and flavour contributions|
|Date of Approval (YYYY-MM-DD):||2016-01-18|
|Name of University:||LMU|
|Place of University:||München|
|Abstract / Description:||This thesis investigates entanglement in strongly coupled N=4 supersymmetric Yang-Mills theory by applying the AdS/CFT correspondence to calculate the entanglement entropy holographically. I have derived an analytic expression for the entanglement entropy at finite temperature, which agrees with known numerical results. My result has a temperature-dependent area law, which indicates a thermally induced effective mass for the adjoint degrees of freedom. This phenomenon is known as Debye screening.|
Furthermore, I have considered the leading order correction to the entanglement entropy caused by coupling the theory to massive flavour degrees of freedom. My results show a mass-dependent contribution to the area law, which indicates a modification of the Debye screening. Furthermore, my findings reproduce the known results for the thermal entropy, as well as the results for the thermal potentials deduced from it. These display the `meson melting' transition between stable and unstable mesons.
|Classification / Thesaurus:||Theoretical Physics|
|Communicated by:||MPI für Physik|
|Affiliations:||MPI für Physik|
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