39 citations · 109 across the 5 of their papers we have counts for
5 papers
Paraelectric and Ferroelectric States in a Model for Relaxor Ferroelectrics
G. G. Guzmán-Verri, P. B. Littlewood, C. M. Varma
We study the free energy landscape of a minimal model for relaxor ferroelectrics. Using a variational method which includes leading correlations beyond the mean-field approximation…
Augmented hybrid exact-diagonalization solver for dynamical mean field theory
C. Weber, A. Amaricci, M. Capone +1
We present a new methodology to solve the Anderson impurity model, in the context of dynamical mean-field theory, based on the exact diagonalization method. We propose a strategy t…
Amplitude-mode dynamics of polariton condensates
R. T. Brierley, P. B. Littlewood, P. R. Eastham
We study the stability of collective amplitude excitations in non-equilibrium polariton condensates. These excitations correspond to renormalized upper polaritons and to the collec…
Coexistence of superconductivity and ferromagnetism in ferromagnetic metals
N. I. Karchev, K. B. Blagoev, K. S. Bedell +1
In this paper we address the question of coexistence of superconductivity and ferromagnetism in the high temperature superconductor RuSrGdCuO. Using a field theoret…
Bose condensation in a model microcavity
P. R. Eastham, P. B. Littlewood
We study the equilibrium properties of a system of dipole-active excitons coupled to a single photon mode at fixed total excitation. Treating the presence or absence of a trapped e…