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Your search keyword '"Gomis, Jaume"' showing total 116 results
Start Over Author "Gomis, Jaume" Journal journal of high energy physics
116 results on '"Gomis, Jaume"'

25. Phases of N=1 $$ \mathcal{N}=1 $$ theories in 2 + 1 dimensions

Author

Bashmakov, Vladimir, Gomis, Jaume, Komargodski, Zohar, and Sharon, Adar

Subjects
High Energy Physics::Theory, Chern-Simons Theories, High Energy Physics::Phenomenology, lcsh:QC770-798, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Duality in Gauge Field Theories, Supersymmetric Gauge Theory
Abstract

We study the dynamics of 2+1 dimensional theories with N=1 $$ \mathcal{N}=1 $$ supersymmetry. In these theories the supersymmetric ground states behave discontinuously at codimension one walls in the space of couplings, with new vacua coming in from infinity in field space. We show that the dynamics near these walls is calculable: the two-loop effective potential yields exact results about the ground states near the walls. Far away from the walls the ground states can be inferred by decoupling arguments. In this way, we are able to follow the ground states of N=1 $$ \mathcal{N}=1 $$ theories in 2+1 dimensions and construct the infrared phases of these theories. We study two examples in detail: Adjoint SQCD and SQCD with one fundamental quark. In Adjoint QCD we show that for sufficiently small Chern-Simons level the theory has a non-perturbative metastable supersymmetry-breaking ground state. We also briefly discuss the critical points of this theory. For SQCD with one quark we establish an infrared duality between a U(N) gauge theory and an SU(N) gauge theory. The duality crucially involves the vacua that appear from infinity near the walls.

Published
2018
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27. Dynamics of QCD3 with rank-two quarks and duality.

Author

Choi, Changha, Delmastro, Diego, Gomis, Jaume, and Komargodski, Zohar

Abstract

Three-dimensional gauge theories coupled to fermions can develop interesting nonperturbative dynamics. Here we study in detail the dynamics of SU(N) gauge theories coupled to a Dirac fermion in the rank-two symmetric and antisymmetric representation. We argue that when the Chern-Simons level is sufficiently small the theory develops a quantum phase with an emergent topological field theory. When the Chern-Simons level vanishes, we further argue that a baryon condenses and hence baryon symmetry is spontaneously broken. The infrared theory then consists of a Nambu-Goldstone boson coupled to a topological field theory. Our proposals also lead to new fermion-fermion dualities involving fermions in two-index representations. We make contact between our proposals and some recently discussed aspects of four-dimensional gauge theories. This leads us to a proposal for the domain wall theories of non-supersymmetric gauge theories with fermions in two-index representations. Finally, we discuss some aspects of the time-reversal anomaly in theories with a one-form symmetry. [ABSTRACT FROM AUTHOR]

Published
2020
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