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Geometrical trinity of unimodular gravity
被引:3
|作者:
Nakayama, Yu
[1
]
机构:
[1] Rikkyo Univ, Dept Phys, Toshima, Tokyo 1718501, Japan
关键词:
unimodular gravity;
symmetric teleparallel gravity;
teleparallel gravity;
general relativity;
D O I:
10.1088/1361-6382/acd100
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
We construct a Weyl transverse diffeomorphism invariant theory of teleparallel gravity by employing the Weyl compensator formalism. The low-energy dynamics has a single spin two gravition without a scalar degree of freedom. By construction, it is equivalent to unimodular gravity (as well as Einstein's general relativity with an adjustable cosmological constant) at the non-linear level. Combined with our earlier construction of a Weyl transverse diffeomorphism invariant theory of symmetric teleparallel gravity, unimodular gravity is represented in three alternative ways.
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页数:11
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