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## Main Question or Discussion Point

Does lambda evolve?

Some people have been working on this question.

http://arxiv.org/abs/0801.1334

Collider Physics and Cosmology

Authors: Jonathan L. Feng

(Submitted on 8 Jan 2008)

====

http://arxiv.org/abs/0707.3778v1

Renormalization group running cosmologies - from a scale setting to holographic dark energy

Authors: Branko Guberina

(Submitted on 25 Jul 2007)

=======

http://arxiv.org/abs/gr-qc/0702087

Renormalization-group running cosmologies and the generalized second law

Authors: R. Horvat

(Submitted on 15 Feb 2007 (v1), last revised 22 Mar 2007 (this version, v3))

http://arxiv.org/abs/astro-ph/0404204

Holography and Variable Cosmological Constant

Authors: R. Horvat

(Submitted on 9 Apr 2004 (v1), last revised 8 Sep 2004 (this version, v4))

======

http://arxiv.org/abs/astro-ph/0407295

Accelerating Universe with a dynamic cosmological term

Authors: Saibal Ray, Utpal Mukhopadhyay, Xin-He Meng

(Submitted on 14 Jul 2004 (v1), last revised 4 Jun 2007 (this version, v2))

=====

http://arxiv.org/abs/astro-ph/0606448

Concerning the instantaneous mass and the extent of an expanding universe

Authors: H.J. Fahr, Michael Heyl

(Submitted on 19 Jun 2006 (v1), last revised 4 Dec 2006 (this version, v2))

----------------

http://arxiv.org/abs/astro-ph/0606048

About universes with scale-related total masses and their abolition of presently outstanding cosmological problems

Authors: H.J. Fahr, M. Heyl

(Submitted on 2 Jun 2006 (v1), last revised 4 Dec 2006 (this version, v2))

------------

Cosmic vacuum energy decay and creation of cosmic matter.

Hans-Jörg Fahr, Michael Heyl

Argelander Institute for Astronomy, University of Bonn, 53121, Bonn, Germany, hfahr@astro.uni-bonn.de.

Source: Naturwissenschaften, Volume 94, Number 9, September 2007 , pp. 709-724(16)

Publisher: Springer

Abstract:

In the more recent literature on cosmological evolutions of the universe, the cosmic vacuum energy has become a nonrenouncable ingredient. The cosmological constant Λ, first invented by Einstein, but later also rejected by him, presently experiences an astonishing revival. Interestingly enough, it acts like a constant vacuum energy density would also do. Namely, it has an accelerating action on cosmic dynamics, without which, as it appears, presently obtained cosmological data cannot be conciliated with theory. As we are going to show in this review, however, the concept of a constant vacuum energy density is unsatisfactory for very basic reasons because it would claim for a physical reality that acts upon spacetime and matter dynamics without itself being acted upon by spacetime or matter.

=======

http://arxiv.org/abs/0803.2546

Primordial Entropy Production and Lambda-driven Inflation from Quantum Einstein Gravity

Authors: Alfio Bonanno, Martin Reuter

(Submitted on 17 Mar 2008)

“…the running cosmological constant _(k) changes by about 120 orders of magnitude between k-values of the order of the Planck mass and macroscopic scales,…

…. We are thus led to suspect that, because of the decreasing cosmological constant, there is a

continuous inflow of energy into the cosmological fluid contained in an expanding Universe…

…. The assumption that the matter system must allow for an unhindered energy exchange with _

is essential, see refs. [25, 27]….”

-----------------

http://arxiv.org/abs/0708.1317

Functional Renormalization Group Equations, Asymptotic Safety, and Quantum Einstein Gravity

Authors: Martin Reuter, Frank Saueressig

(Submitted on 9 Aug 2007)

http://arxiv.org/abs/0709.3851

Asymptotic Safety

Authors: R. Percacci

(Submitted on 24 Sep 2007)

http://xxx.lanl.gov/abs/hep-th/0603022

Quantum gravity and the standard model

Authors: Sundance O. Bilson-Thompson, Fotini Markopoulou, Lee Smolin

(Submitted on 3 Mar 2006 (v1), last revised 21 Apr 2007 (this version, v2))

=======

jal

Some people have been working on this question.

http://arxiv.org/abs/0801.1334

Collider Physics and Cosmology

Authors: Jonathan L. Feng

(Submitted on 8 Jan 2008)

====

http://arxiv.org/abs/0707.3778v1

Renormalization group running cosmologies - from a scale setting to holographic dark energy

Authors: Branko Guberina

(Submitted on 25 Jul 2007)

=======

http://arxiv.org/abs/gr-qc/0702087

Renormalization-group running cosmologies and the generalized second law

Authors: R. Horvat

(Submitted on 15 Feb 2007 (v1), last revised 22 Mar 2007 (this version, v3))

http://arxiv.org/abs/astro-ph/0404204

Holography and Variable Cosmological Constant

Authors: R. Horvat

(Submitted on 9 Apr 2004 (v1), last revised 8 Sep 2004 (this version, v4))

======

http://arxiv.org/abs/astro-ph/0407295

Accelerating Universe with a dynamic cosmological term

Authors: Saibal Ray, Utpal Mukhopadhyay, Xin-He Meng

(Submitted on 14 Jul 2004 (v1), last revised 4 Jun 2007 (this version, v2))

=====

http://arxiv.org/abs/astro-ph/0606448

Concerning the instantaneous mass and the extent of an expanding universe

Authors: H.J. Fahr, Michael Heyl

(Submitted on 19 Jun 2006 (v1), last revised 4 Dec 2006 (this version, v2))

----------------

http://arxiv.org/abs/astro-ph/0606048

About universes with scale-related total masses and their abolition of presently outstanding cosmological problems

Authors: H.J. Fahr, M. Heyl

(Submitted on 2 Jun 2006 (v1), last revised 4 Dec 2006 (this version, v2))

------------

Cosmic vacuum energy decay and creation of cosmic matter.

Hans-Jörg Fahr, Michael Heyl

Argelander Institute for Astronomy, University of Bonn, 53121, Bonn, Germany, hfahr@astro.uni-bonn.de.

Source: Naturwissenschaften, Volume 94, Number 9, September 2007 , pp. 709-724(16)

Publisher: Springer

Abstract:

In the more recent literature on cosmological evolutions of the universe, the cosmic vacuum energy has become a nonrenouncable ingredient. The cosmological constant Λ, first invented by Einstein, but later also rejected by him, presently experiences an astonishing revival. Interestingly enough, it acts like a constant vacuum energy density would also do. Namely, it has an accelerating action on cosmic dynamics, without which, as it appears, presently obtained cosmological data cannot be conciliated with theory. As we are going to show in this review, however, the concept of a constant vacuum energy density is unsatisfactory for very basic reasons because it would claim for a physical reality that acts upon spacetime and matter dynamics without itself being acted upon by spacetime or matter.

=======

http://arxiv.org/abs/0803.2546

Primordial Entropy Production and Lambda-driven Inflation from Quantum Einstein Gravity

Authors: Alfio Bonanno, Martin Reuter

(Submitted on 17 Mar 2008)

“…the running cosmological constant _(k) changes by about 120 orders of magnitude between k-values of the order of the Planck mass and macroscopic scales,…

…. We are thus led to suspect that, because of the decreasing cosmological constant, there is a

continuous inflow of energy into the cosmological fluid contained in an expanding Universe…

…. The assumption that the matter system must allow for an unhindered energy exchange with _

is essential, see refs. [25, 27]….”

-----------------

http://arxiv.org/abs/0708.1317

Functional Renormalization Group Equations, Asymptotic Safety, and Quantum Einstein Gravity

Authors: Martin Reuter, Frank Saueressig

(Submitted on 9 Aug 2007)

http://arxiv.org/abs/0709.3851

Asymptotic Safety

Authors: R. Percacci

(Submitted on 24 Sep 2007)

http://xxx.lanl.gov/abs/hep-th/0603022

Quantum gravity and the standard model

Authors: Sundance O. Bilson-Thompson, Fotini Markopoulou, Lee Smolin

(Submitted on 3 Mar 2006 (v1), last revised 21 Apr 2007 (this version, v2))

=======

jal