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Massive Unimodular Gravity

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 نشر من قبل Raquel Santos
 تاريخ النشر 2018
  مجال البحث فيزياء
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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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