The origin of the cosmological constant in unimodular gravity

被引：0
|
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
关键词：
D O I：
暂无
中图分类号：
学科分类号：
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.
引用
收藏
相关论文
共 50 条
  • [41] Is the cosmological constant of topological origin?
    Le Delliou, M.
    Espiro, J. Lorca
    PHYSICS OF THE DARK UNIVERSE, 2020, 29
  • [42] Essential nature of Newton's constant in unimodular gravity
    Benedetti, Dario
    GENERAL RELATIVITY AND GRAVITATION, 2016, 48 (05)
  • [43] The cosmological constant and the weak gravity conjecture
    Liu, Yang
    Padilla, Antonio
    Pedro, Francisco G.
    JOURNAL OF HIGH ENERGY PHYSICS, 2024, (08):
  • [44] Evolution of the cosmological constant in effective gravity
    G. E. Volovik
    Journal of Experimental and Theoretical Physics Letters, 2003, 77 : 339 - 343
  • [45] Localized (super)gravity and cosmological constant
    Kakushadze, Z
    NUCLEAR PHYSICS B, 2000, 589 (1-2) : 75 - 118
  • [46] Quantum Gravity and the Cosmological Constant Problem
    Moffat, John W.
    1ST KARL SCHWARZSCHILD MEETING ON GRAVITATIONAL PHYSICS, 2016, 170 : 299 - 309
  • [47] Instabilities in thermal gravity with a cosmological constant
    Brandt, F. T.
    Frenkel, J.
    PHYSICS LETTERS B, 2008, 665 (04) : 264 - 266
  • [48] Quantum gravity contributions to the cosmological constant
    Zonetti, Simone
    6TH INTERNATIONAL WORKSHOP DICE2012 SPACETIME - MATTER - QUANTUM MECHANICS: FROM THE PLANCK SCALE TO EMERGENT PHENOMENA, 2013, 442
  • [49] Evolution of the cosmological constant in effective gravity
    Volovik, GE
    JETP LETTERS, 2003, 77 (07) : 339 - 343
  • [50] Cosmological constant in coherent quantum gravity
    Hogan, Craig
    INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2020, 29 (14):
12345