14 citations · 22 across the 3 of their papers we have counts for
4 papers · 1 filter
Unified static renormalization-group treatment of finite-temperature crossovers close to a quantum critical point
M. T. Mercaldo, L. De Cesare, I. Rabuffo +1
A nonconventional renormalization-group (RG) treatment close to and below four dimensions is used to explore, in a unified and systematic way, the low-temperature properties of a w…
Field-Induced Quantum Criticality of Systems with Ferromagnetically Coupled Structural Spin Units
I. Rabuffo, M. T. Mercaldo, L. De Cesare +1
The field-induced quantum criticality of compounds with ferromagnetically coupled structural spin units (as dimers and ladders) is explored by applying Wilson's renormalization gro…
The Classical Spectral Density Method at Work: The Heisenberg Ferromagnet
A. Cavallo, F. Cosenza, L. De Cesare
In this article we review a less known unperturbative and powerful many-body method in the framework of classical statistical mechanics and then we show how it works by means of ex…
Low-Temperature Quantum Critical Behaviour of Systems with Transverse Ising-like Intrinsic Dynamics
A. Caramico D'Auria, L. De Cesare, I. Rabuffo
The low-temperature properties and crossover phenomena of -dimensional transverse Ising-like systems within the influence domain of the quantum critical point are investigated s…