24-30 July 2016
Highfield Campus, University of Southampton
Europe/London timezone

Roberge-Weiss periodicity and confinement-deconfinement transition

25 Jul 2016, 17:45
20m
Building 32 Room 1015 (Highfield Campus, University of Southampton)

Building 32 Room 1015

Highfield Campus, University of Southampton

Talk Nonzero Temperature and Density Nonzero Temperature and Density

Speaker

Dr Kouji Kashiwa (Yukawa Institute for Theoretical Physics, Kyoto University)

Description

We propose a new determination of the confinement-deconfinement transition by using the imaginary chemical potential. The imaginary chemical potential can be interpreted as the Aharonov-Bohm phase and then an analogy of the topological-order suggests that the Roberge-Weiss endpoint would define the deconfinement temperature. Based on the topological property, we can construct a new quantity which describes the confinement-deconfinement transition. This quantity is defined as the integral of the quark number susceptibility along the closed loop of $\theta$ where $\theta$ is the dimensionless imaginary chemical potential. Expected behavior of it at finite temperature is discussed and its asymptotic behaviors are shown.

Primary author

Dr Kouji Kashiwa (Yukawa Institute for Theoretical Physics, Kyoto University)

Co-author

Prof. Akira Ohnishi (Yukawa Institute for Theoretical Physics, Kyoto University)

Presentation Materials

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