120 citations · 436 across the 8 of their papers we have counts for
8 papers
Exact flow equation for composite operators
S. Floerchinger, C. Wetterich
We propose an exact flow equation for composite operators and their correlation functions. This can be used for a scale-dependent partial bosonization or "flowing bosonization" of…
Nonperturbative thermodynamics of an interacting Bose gas
S. Floerchinger, C. Wetterich
We discuss the thermodynamics of a non-relativistic gas of bosons with a local repulsive interaction. In particular, we compute the temperature and density dependence of pressure,…
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…
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…
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…
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…