Holography and a variable cosmological constant

By R. Horvat. 2004

166 citations recorded by the source corpus.

An effective local quantum field theory with UV and IR cutoffs correlated in accordance with holographic entropy bounds is capable of rendering the cosmological constant (CC) stable against quantum corrections. By setting an IR cutoff to length scales relevant to cosmology, one easily obtains the currently observed {rho}{sub {lambda}}{approx_equal}10{sup -47} GeV{sup 4} thus alleviating the CC problem. It is argued that scaling behavior of the CC in these scenarios implies an interaction of the CC with matter sector or a time-dependent gravitational constant to accommodate the observational data.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/a245468a3a757d53eeab0673e02523499e8c06b5

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

In Nuclear and High Energy Physics

In Statistical and Nonlinear Physics

Citations in the corpus

Transplanckian energy production and slow roll inflation (2004, background): “ose the Friedmann equation H˙ = − 4π M2 p (ρΛ +pΛ +ρm +pm), (27) where we will put wΛ = 1 3 , and keep wm arbitrary. Integrating the equations gives H2 = 8π 3M2 p (ρΛ +ρm)− 8π 3M2 p Z t qdt, (28) 4In [34] source terms were introduced in a diﬀerent way in order to sustain an energy density H 2Λ motiv”
Running G and Λ at low energies from physics at MX: possible cosmological and astrophysical implications (2004, background): “which may go beyond the RG. No less appealing is that this quadratic law can further be claimed, at least heuristically, on the grounds of the so-called Holographic Principle (HP) applied to effective field theories[ 39 ].”