The origin of the cosmological constant in unimodular gravity

被引：0
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作者：
Enrique Álvarez
Jesús Anero
Irene Sánchez-Ruiz
机构：
[1] IFT-UAM/CSIC,Departamento de Física Teórica and Instituto de Física Teórica
[2] Universidad Autónoma de Madrid,undefined
来源：
The European Physical Journal C | / 84卷
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摘要：
It is well-known that in unimodular gravity (UG) the cosmological constant is not sourced by a constant energy density, but rather appears as some sort of integration constant. In this work we try to flesh this out by studying in some detail a couple of examples, one from cosmology and the other from gravitational collapse.
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