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Massive Unimodular Gravity

A ghost free massive deformation of unimodular gravity (UG), in the spirit of {\em mimetic massive gravity}, is shown to exist. This construction avoids the no-go theorem for a Fierz-Pauli type of mass term in UG by giving up on Lorentz invariance. In our framework, the mimetic degree of freedom vanishes on-shell.

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Co-authorshipCo-authorshipCo-authorshipCo-authorshipCo-authorshipCo-authorshipAuthorshipAuthorshipAuthorshipAuthorshipTopic signalTopic signalRelated contextWMassive Unimodular Gravitypreprint / 2020AEnrique AlvarezResearcherAJesus AneroResearcherAGuillermo Milans del BoschResearcherARaquel Santos-GarciaResearcherTgr-qc10727 worksThep-th13268 works
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Massive Unimodular Gravity

preprint / 2020

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