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12–16 Sept 2023
Yerevan, Armenia
Etc/GMT+4 timezone

New vortices in two-flavor dense quark core of compact star

16 Sept 2023, 12:30
30m
Yerevan, Armenia

Yerevan, Armenia

Department of Physics, Alex Manukyan str. 1, Yerevan, Armenia

Speaker

Prof. Karen Shahabasyan (Yerevan State University)

Description

Quark hadron continuity with two- flavor quarks connects hadronic matter with neutron 3P2 superfluidity and two-flavor dense quark matter. This two- flavor dense quark phase consists of the coexistence of the 2SC diquark condensate of ud - quarks and P –wave diquark condensate of d –quarks , which gives rise to color superconductivity as well as superfluidity. The stable vortices are non-Abelian Alice strings, which are superfluid vortices with fractional circulation and non-Abelian color magnetic fluxes therein. A single Abelian superfluid vortex is unstable against decay into three non-Abelian Alice strings. Three neutron vortices connect at the border with three non-Abelian Alice strings with different color magnetic fluxes forming boojum. 2SC condensate is a type II superconductor and magnetic field penetrates into quark core in the form of quark vortices.

Author

Prof. Karen Shahabasyan (Yerevan State University)

Presentation materials