182 citations · 893 across the 22 of their papers we have counts for
9 papers · 1 filter
Three-body loss in lithium from functional renormalization
R. Schmidt, S. Floerchinger, C. Wetterich
We use functional integral methods for an estimate of the three-body loss in a three-component Li ultracold atom gas. We advocate a simple picture where the loss proceeds by th…
Quantum entanglement and interference from classical statistics
C. Wetterich
Quantum mechanics for a four-state-system is derived from classical statistics. Entanglement, interference, the difference between identical fermions or bosons and the unitary time…
Functional renormalization for trion formation in ultracold fermion gases
S. Floerchinger, R. Schmidt, S. Moroz +1
The energy spectrum for three species of identical fermionic atoms close to a Feshbach resonance is computed by use of a nonperturbative flow equation. Already a simple truncation…
Unifying cosmological and recent time variations of fundamental couplings
Thomas Dent, Steffen Stern, Christof Wetterich
A number of positive and null results on the time variation of fundamental constants have been reported. It is difficult to judge whether or not these claims are mutually consisten…
Particle-hole fluctuations in the BCS-BEC Crossover
S. Floerchinger, M. Scherer, S. Diehl +1
The effect of particle-hole fluctuations for the BCS-BEC crossover is investigated by use of functional renormalization. We compute the critical temperature for the whole range in…
Superfluid Bose gas in two dimensions
S. Floerchinger, C. Wetterich
We investigate Bose-Einstein condensation for ultracold bosonic atoms in two-dimensional systems. The functional renormalization group for the average action allows us to follow th…