The renormalization group plays an essential role in many areas of physics, both
conceptually and as a practical tool to determine the long-distance low-energy properties of …

In any medium there are fluctuations due to temperature or due to the quantum nature of its
constituents. If a material body is immersed into such a medium, its shape and the properties …

In the last few years the derivative expansion of the nonperturbative renormalization group
has proven to be a very efficient tool for the precise computation of critical quantities. In …

We review recent advances in the theoretical, numerical, and experimental studies of critical
Casimir forces in soft matter, with particular emphasis on their relevance for the structures of …

Recently a unified hypothesis of multiparameter universality for the critical behavior of bulk
and confined anisotropic systems has been formulated [V. Dohm, Phys. Rev. E 97, 062128 …

Using the nonperturbative functional renormalization group (FRG) within the Blaizot-Méndez-
Galain-Wschebor approximation, we compute the operator product expansion (OPE) …

We determine the two-body contact in a planar Bose gas confined by a transverse harmonic
potential, using the nonperturbative functional renormalization group. We use the three …

The effect of imposing a constraint on a fluctuating scalar order parameter field in a system
of finite volume is studied within statistical field theory. The canonical ensemble …

Using a nonperturbative functional renormalization-group approach to the two-dimensional
quantum O (N) model, we compute the low-frequency limit ω→ 0 of the zero-temperature …

We employ the second order of the derivative expansion of the nonperturbative
renormalization group to study cubic (Z 4-symmetric) perturbations to the classical XY model …