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The University of Southampton
STAG Research Centre

String Theory seminar - Aleksey Cherman [NOTE UNUSUAL TIME: 15:00] Seminar

27 January 2021
Online seminar

For more information regarding this seminar, please email David Turton at .

Event details

Title: Higgs-confinement phase transitions with fundamental representation matter

Abstract: I will discuss the conditions under which Higgs and confining regimes in gauge theories with fundamental representation matter fields can be sharply distinguished. It is widely believed that these regimes are smoothly connected unless they are distinguished by the realization of global symmetries. However, I will show that when a U(1) global symmetry is spontaneously broken in both the confining and Higgs regimes, the two phases can be separated by a phase boundary. The phase transition between the two regimes may be detected by a novel topological vortex order parameter.
I'll illustrate these ideas by explicit calculations in gauge theories in three spacetime dimensions, and then explain the generalization to four dimensions. One important implication of our results is that nuclear matter and quark matter are sharply distinct phases of QCD with an approximate SU(3) flavor symmetry.


Speaker information

Aleksey Cherman, Minnesota.

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