Study of strongly-correlated quark-gluon plasma via center vortex mechanism

2015 Fiscal Year Final Research Report

• Project/Area Number: 23740194
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Kochi University
• Principal Investigator: Saito Takuya 高知大学, 自然科学系, 助教 (50448023)
• Project Period (FY): 2011-04-28 – 2016-03-31
• Keywords: クォークグルーオンプラズマ / 格子量子色力学 / クォーク閉じ込め / 磁場遮蔽

Outline of Final Research Achievements

We study the role of magnetic degree of freedom in the gluon plasma after the phase transition via center vortex mechanism by using the SU(2) lattice simulations.In the infrared region the magnetic gluon propagator is strongly affected by removal of the center vortices; this means that thermal magnetic gluons are still nonperturbative objects in the deconfinement phase. The equation of state is also investigated by the lattice configuration under this procedure and the free energy become so large. In addition, the thermal correlator function of transport coefficient to shear viscosity is found to be dependent on center vortices.

Free Research Field

格子QCD