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Efimov effect from functional renormalization
S. Moroz, S. Floerchinger, R. Schmidt +1
We apply a field-theoretic functional renormalization group technique to the few-body (vacuum) physics of non-relativistic atoms near a Feshbach resonance. Three systems are consid…
Probabilistic observables, conditional correlations, and quantum physics
C. Wetterich
We discuss the classical statistics of isolated subsystems. Only a small part of the information contained in the classical probability distribution for the subsystem and its envir…
Dilatation symmetry in higher dimensions and the vanishing of the cosmological constant
C. Wetterich
A wide class of dilatation symmetric effective actions in higher dimensions leads to a vanishing four-dimensional cosmological constant. This requires no tuning of parameters and r…
Neutrino clustering in growing neutrino quintessence
D. F. Mota, V. Pettorino, G. Robbers +1
A growing neutrino mass can stop the dynamical evolution of a dark energy scalar field, thus explaining the 'why now' problem. We show that such models lead to a substantial neutri…