On the constraint structure of vacuum energy sequestering
被引:1
|
作者:
Svesko, Andrew
论文数: 0引用数: 0
h-index: 0
机构:
Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA
Arizona State Univ, Beyond Ctr Fundamental Concepts Sci, Tempe, AZ 85287 USAArizona State Univ, Dept Phys, Tempe, AZ 85287 USA
Svesko, Andrew
[1
,2
]
Zahariade, George
论文数: 0引用数: 0
h-index: 0
机构:
Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA
Arizona State Univ, Beyond Ctr Fundamental Concepts Sci, Tempe, AZ 85287 USAArizona State Univ, Dept Phys, Tempe, AZ 85287 USA
Zahariade, George
[1
,2
]
机构:
[1] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA
[2] Arizona State Univ, Beyond Ctr Fundamental Concepts Sci, Tempe, AZ 85287 USA
来源:
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
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2019年
/
12期
关键词:
cosmology of theories beyond the SM;
modified gravity;
COSMOLOGICAL CONSTANT;
TIME;
D O I:
10.1088/1475-7516/2019/12/033
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
We carry out the Hamiltonian analysis of the local vacuum energy sequestering model - a manifestly local and diffeomorphism invariant extension of general relativity which has been shown to remove the radiatively unstable contribution to the vacuum energy generated by matter loops. We find that the degravitation of this UV sensitive quantity is enforced via global relations that are a consequence of the model's peculiar constraint structure. We also show that the model propagates the proper number of degrees of freedom and thus locally reduces to general relativity on-shell.