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arXiv · 1110.2393

Vacuum fluctuations of the supersymmetric field in curved background

Neven Bilic·Silvije Domazet·Branko Guberina
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Abstract

We study a supersymmetric model in curved background spacetime. We calculate the effective action and the vacuum expectation value of the energy momentum tensor using a covariant regularization procedure. A soft supersymmetry breaking induces a nonzero contribution to the vacuum energy density and pressure. Assuming the presence of a cosmic fluid in addition to the vacuum fluctuations of the supersymmetric field an effective equation of state is derived in a self-consistent approach at one loop order. The net effect of the vacuum fluctuations of the supersymmetric fields in the leading adiabatic order is a renormalization of the Newton and cosmological constants.

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Neven Bilic, Silvije Domazet, Branko Guberina. 2011-10-11. Vacuum fluctuations of the supersymmetric field in curved background. https://doi.org/10.1016/j.physletb.2011.12.025

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