seminario semanal - Física nuclear
Hola a Todos,
les copio info del sgte. seminario
slds
Rolo
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Please join us for our next Rising Researchers seminar on Tuesday, February 21st at 10:30 AM Pacific Time by Theo Jacobson - University of Minnesota.
The seminar is fully virtual. Please find the Zoom link below.
Title:
Vortices and Higgs-confinement phase transitions with fundamental matter
Abstract:
It is widely believed that the Higgs and confining phases of gauge theories with fundamental-representation matter are continuously connected unless global symmetries are realized differently in the two regimes. We revisit this question in a class of gauge theories with fundamental matter where a U(1) global symmetry is spontaneously broken in both the Higgs and confining regimes. A distinguishing characteristic of these two regimes is the long-distance Aharanov-Bohm phase around superfluid vortices. To be concrete, we consider an abelian lattice gauge theory in 2+1 dimensions meant to mimic some aspects of dense flavor-symmetric QCD. We employ the modified Villain approach to precisely formulate an order parameter related to the physics of vortices, and compute its behavior in analytically tractable portions of parameter space. We discuss possible implications for the phase diagram of the model at finite lattice spacing and in the continuum limit.
Zoom link:
https://wustl.zoom.us/j/92863708105
les copio info del sgte. seminario
slds
Rolo
-------------------------------
Please join us for our next Rising Researchers seminar on Tuesday, February 21st at 10:30 AM Pacific Time by Theo Jacobson - University of Minnesota.
The seminar is fully virtual. Please find the Zoom link below.
Title:
Vortices and Higgs-confinement phase transitions with fundamental matter
Abstract:
It is widely believed that the Higgs and confining phases of gauge theories with fundamental-representation matter are continuously connected unless global symmetries are realized differently in the two regimes. We revisit this question in a class of gauge theories with fundamental matter where a U(1) global symmetry is spontaneously broken in both the Higgs and confining regimes. A distinguishing characteristic of these two regimes is the long-distance Aharanov-Bohm phase around superfluid vortices. To be concrete, we consider an abelian lattice gauge theory in 2+1 dimensions meant to mimic some aspects of dense flavor-symmetric QCD. We employ the modified Villain approach to precisely formulate an order parameter related to the physics of vortices, and compute its behavior in analytically tractable portions of parameter space. We discuss possible implications for the phase diagram of the model at finite lattice spacing and in the continuum limit.
Zoom link:
https://wustl.zoom.us/j/92863708105
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