Abstract
We present an orientifold of a toric singularity allowing for a configuration of fractional branes which corresponds to a gauge theory that dynamically breaks supersymmetry in a stable vacuum. This model represents the first such instance within the gauge/gravity duality.
Highlights
Our understanding of gauge theories was given a dramatically new perspective when it was realized that they appear ubiquitously in string theory
After attempts to turn the runaway into a stable vacuum proved unsuccessful [16], it was shown in [17] that introducing an orientifold projection it is possible to engineer configurations which at low-energies reproduce the well-known dynamical supersymmetry breaking (DSB) model of [18], referred to as ‘the SU (5) model.’
In this letter we argue that stable DSB is still in the landscape
Summary
Our understanding of gauge theories was given a dramatically new perspective when it was realized that they appear ubiquitously in string theory. The last possibility that remains is that supersymmetry is dynamically broken in a fully stable vacuum This has proven to be a harder problem to engineer with D-branes at singularities. After attempts to turn the runaway into a stable vacuum proved unsuccessful [16], it was shown in [17] that introducing an orientifold projection it is possible to engineer configurations which at low-energies reproduce the well-known dynamical supersymmetry breaking (DSB) model of [18], referred to as ‘the SU (5) model.’. N = 2 fractional branes, if present, always destabilize the supersymmetry breaking vacuum and set, eventually, the vacuum energy to zero All of this was mounting evidence for what could be interpreted as the impossibility of engineering stable DSB with Dbranes at singularities.
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