Unimodular Gravity Redux

Abstract

It is well known that the problem of the cosmological constant appears in a new light in Unimodular Gravity. In particular, the zero momentum piece of the potential does not automatically produce a corresponding cosmological constant. Here we show that quantum corrections do not renormalize the classical value of this observable.

arXiv comment4 pages

References in corpus (9)

• Nonperturbative Evolution Equation for Quantum Gravity
• Transverse Fierz-Pauli symmetry
• The Trace-Free Einstein Equations and inflation
• Quantum Corrections to Unimodular Gravity
• On the running of the gravitational constant
• Running couplings and operator mixing in the gravitational corrections to coupling constants
• Longitudinal diffeomorphisms obstruct the protection of vacuum energy
• Unimodular gravity with external sources
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Cited by in corpus (34)

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• The path integral of unimodular gravity
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• Essential nature of Newton's constant in unimodular gravity
• Losing the trace to find dynamical Newton or Planck constants
• Can quantum fluctuations differentiate between standard and unimodular gravity?
• Scale-invariant alternatives to general relativity. III. The inflation--dark-energy connection
• Diffusion in unimodular gravity: Analytical solutions, late-time acceleration, and cosmological constraints
• Unimodular Trees versus Einstein Trees
• Covariant BRST Quantization of Unimodular Gravity I -- Formulation with antisymmetric tensor ghosts --
• A note on the Gauge Symmetries of Unimodular Gravity
• Classical Weyl Transverse Gravity
• Cascading dust inflation in Born-Infeld gravity
• Unimodular Einstein--Cartan gravity: Dynamics and conservation laws
• Analyzing modified unimodular gravity via Lagrange multipliers
• BRST Quantization of General Relativity in Unimodular Gauge and Unimodular Gravity
• What do gravitons say about (unimodular) gravity?
• The cosmological constant as a boundary term
• Reissner-Nordstrom Solution from Weyl Transverse Gravity
• Schwarzschild Solution from WTDiff Gravity
• Cosmology in Weyl Transverse Gravity
• Unimodular gravity theory with external sources in a Lorentz-symmetry breaking scenario
• Quartet-metric/multi-component gravity: scalar graviton as emergent dark substance
• The KLT relations in unimodular gravity
• Revisiting cosmological diffusion models in Unimodular Gravity and the $H_0$ tension
• Weyl invariance with a nontrivial mass scale
• Massive Unimodular Gravity
• Weyl and transverse diffeomorphism invariant spin-2 models in D=2+1
• Multiscalar-metric gravity: cosmological constant screening and emergence of massive-graviton dark components
• Covariant BRST Quantization of Unimodular Gravity II -- Formulation with a vector antighost --
• Quartet-metric gravity, scalar-graviton dark substance and vacuum energy screening: extending GR vs. its WTDiff alternative
• Unimodular Cosmological models