9 papers · 1 filter
Gaussian fluctuation corrections to the BCS mean field gap amplitude at zero temperature
S. Kos, A. J. Millis, A. I. Larkin
The leading (Gaussian) fluctuation correction to the weak coupling zero temperature BCS superconducting gap equation is computed. We find that the dominant contribution comes from…
Dynamical mean-field theory of electron-phonon interaction in correlated electron materials: general results and application to doped Mott insulators
A. Deppeler, A. J. Millis
The dynamical mean-field method is used to formulate a computationally tractable theory of electron-phonon interactions in systems with arbitrary local electron-electron interactio…
Theory of the Quantum Paraelectric - Ferroelectric Transition
R. Roussev, A. J. Millis
A realistic theory of the quantum paraelectric - ferroelectric transition is presented, involving parameters determined from band calculations and a renormalization group treatment…
Metamagnetic Quantum Criticality
A. J. Millis, A. J. Schofield, G. G. Lonzarich +1
A renormalization group treatment of metamagnetic quantum criticality in metals is presented. In clean systems the universality class is found to be of the overdamped, conserving (…
Superconductivity, phase fluctuations and the c-axis conductivity of bilayer high temperature superconductors
N. Shah, A. J. Millis
We present a theory of the interplane conductivity of bilayer high temperature superconductors, focusing on the effect of quantal and thermal fluctuations on the oscillator strengt…
A dynamical mean field theory for the magnetic transition temperature of ferromagnetic semiconductors
A. Chattopadhyay, S. Das Sarma, A. J. Millis
This paper has been withdrawn by the authors due to a numerical error. A revised version will be posted shortly.