BRST quantization of general relativity in unimodular gauge and unimodular gravity
نویسندگان
چکیده
Unimodular gravity (UG) is an important theory which may explain the smallness of cosmological constant. To get insight into covariant quantization UG, we discuss BRST General Relativity (GR) with a constant in unimodular gauge. We develop novel way to gauge fix transverse diffeomorphism (TDiff) and then further fulfill This process requires introduction additional pair doublets decouple from physical sector together other three pairs for TDiff. show that spectrum same as GR usual fixing. study derived by making "Fourier transform" respect candidate "quantum UG." clarify difference point out problems this theory.
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.104.126021