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Search: authors:"Fotis Farakos"

6 papers found.
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Three-forms in supergravity and flux compactifications

We present a duality procedure that relates conventional four-dimensional matter-coupled \(\mathcal{N}=1\) supergravities to dual formulations in which auxiliary fields are replaced by field strengths of gauge three-forms. The duality promotes specific coupling constants appearing in the superpotential to vacuum expectation values of the field strengths. We then apply this general ...

Superspace higher derivative terms in two dimensions

We study (2, 2) and (4, 4) supersymmetric theories with superspace higher derivatives in two dimensions. A characteristic feature of these models is that they have several different vacua, some of which break supersymmetry. Depending on the vacuum, the equations of motion describe different propagating degrees of freedom. Various examples are presented which illustrate their ...

Constrained superfields in supergravity

We analyze constrained superfields in supergravity. We investigate the consistency and solve all known constraints, presenting a new class that may have interesting applications in the construction of inflationary models. We provide the superspace Lagrangians for minimal supergravity models based on them and write the corresponding theories in component form using a simplifying ...

Scanning of the supersymmetry breaking scale and the gravitino mass in supergravity

We consider the minimal three-form \( \mathcal{N} \) = 1 supergravity coupled to nilpotent three-form chiral superfields. The supersymmetry breaking is sourced by the three-forms of the chiral multiplets, while the value of the gravitino mass is controlled by the three-form of the supergravity multiplet. The three-forms can nucleate membranes which scan both the supersymmetry ...

Non-minimal scalar multiplets, supersymmetry breaking and dualities

We study supersymmetry breaking in theories with non-minimal multiplets (such as the complex linear or CNM multiplets), by using superspace higher derivative terms which give rise to new supersymmetry breaking vacuum solutions on top of the standard supersymmetric vacuum. We illustrate the decoupling of the additional massive sectors inside the complex linear and the CNM multiplets ...

Naturalness and chaotic inflation in supergravity from massive vector multiplets

Fotis Farakos 0 Rikard von Unge 0 0 Institute for Theoretical Physics, Masaryk University , Kotlarska 2, 611 37 Brno, Czech Republic We study the embedding of the quadratic model of chaotic