Cosmological constant problem - Open Access .click

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The cosmological constant problem and the effective potential of a gravity-coupled scalar

Journal of High Energy Physics
We consider a quantum scalar field in a classical (Euclidean) De Sitter background, whose radius is fixed dynamically by Einstein’s equations. In the case of a free scalar, it has been shown by Becker and Reuter that if one regulates the quantum ...
Renata Ferrero, Roberto Percacci
doaj +1 more source

On the cosmological constant problem and brane-world geometry

Open Physics, 2011
Capistrano Abraão, Odon Pedro
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Solving Particle–Antiparticle and Cosmological Constant Problems

Axioms
We solve the particle-antiparticle and cosmological constant problems proceeding from quantum theory, which postulates that: various states of the system under consideration are elements of a Hilbert space H with a positive definite metric; each physical quantity is defined by a self-adjoint operator in H; symmetry at the quantum level is defined by a ...
openaire +4 more sources

The era of precision cosmology with voids. [PDF]

Astron Astrophys Rev
Contarini S, Verza G, Pisani A.
europepmc +1 more source

Galaxy Evolution with Manifold Learning. [PDF]

Entropy (Basel)
Takeuchi TT, Cooray S, Kano RR.
europepmc +1 more source

The Dynamical Evolution Parameter in Manifestly Covariant Quantum Gravity Theory. [PDF]

Entropy (Basel)
Cremaschini C.
europepmc +1 more source

Isometries of Spacetimes Without Observer Horizons. [PDF]

Commun Math Phys
García-Heveling L, Zeghib A.
europepmc +1 more source

f(Q) gravity as a possible resolution of the H<sub>0</sub> and S<sub>8</sub> tensions with DESI DR2. [PDF]

Sci Rep
Kavya NS, Swagat Mishra S, Sahoo PK.
europepmc +1 more source

Maximum Entropy Estimates of Hubble Constant from Planck Measurements. [PDF]

Entropy (Basel)
Knobles DP, Westling MF.
europepmc +1 more source