2.2k citations · 10.6k across the 172 of their papers we have counts for
10 papers · 1 filter
Can Structure Formation Influence the Cosmological Evolution?
C. Wetterich
The backreaction of structure formation influences the cosmological evolution equation for the homogenous and isotropic average metric. In a cold dark matter universe this effect l…
Cosmon dark matter?
C. Wetterich
We investigate if the fluctuations of the scalar field mediating quintessence -- the cosmon -- can play an important role in cosmology. Small fluctuations with short wavelength beh…
Are Galaxies Cosmon Lumps?
C. Wetterich
The scalar ``cosmon'' field mediating quintessence influences the dynamics of extended objects in the universe. We discuss cosmon lumps -- spherically symmetric solutions for the s…
Structure Formation and the Time Dependence of Quintessence
Michael Doran, Jan-Markus Schwindt, Christof Wetterich
We discuss the influence of dark energy on structure formation, especially the effects on σ_8. Our interest is particularly focused on quintessence models with time-dependent equat…
Renormalization Flow of Bound States
Holger Gies, Christof Wetterich
A renormalization group flow equation with a scale-dependent transformation of field variables gives a unified description of fundamental and composite degrees of freedom. In the c…
The Influence of Quintessence on the Separation of CMB Peaks
Michael Doran, Matthew Lilley, Jan Schwindt +1
A hypothetical dark energy component may have an equation of state that is different from a cosmological constant and possibly even changing in time. The spacing of the cosmic micr…
Constraining Quintessence with the New CMB Data
Michael Doran, Matthew Lilley, Christof Wetterich
The CMB data recently released by BOOMERANG and MAXIMA suggest that the anisotropy spectrum has a third peak in the range 800<l_3<900. A combination of this result with constraints…
Quantum correlations from incomplete classical statistics
C. Wetterich
We formulate incomplete classical statistics for situations where the knowledge about the probability distribution outside a local region is limited. The information needed to comp…
Phase transition between three- and two-flavor QCD?
C. Wetterich
We explore the possibility that QCD may undergo a phase transition as a function of the strange quark mass. This would hint towards models with ``spontaneous color symmetry breakin…
Connection between Chiral Symmetry Restoration and Deconfinement
Christof Wetterich
We propose a simple explanation for the connection between chiral symmetry restoration and deconfinement in QCD at high temperature. In the Higgs description of the QCD vacuum both…