17 citations · 57 across the 11 of their papers we have counts for
12 papers
First-principles theory of phonon renormalization from nonlinear electron-phonon interactions
Florian Kluibenschedl, Matthew Houtput, Jacques Tempere +3
Electron-phonon interactions renormalize phonon frequencies and lifetimes and are central to the dynamical properties of solids. While these effects are usually described within li…
Importance of nonlinear long-range electron-phonon interaction for the carrier mobility of anharmonic halide perovskites
Matthew Houtput, Ingvar Zappacosta, William Wenborn +4
The interaction between the electrons and the lattice vibrations in a solid is responsible for various important effects, such as formation of polarons, temperature dependent bandg…
Nonlinear electron-phonon interactions in Migdal-Eliashberg theory
Ingvar Zappacosta, Matthew Houtput, Jacques Tempere
Superconducting systems based on attractive electron-phonon interactions are the ones which are best understood at a fundamental level. They are well described using Eliashberg the…
First-principles theory of nonlinear long-range electron-phonon interaction
Matthew Houtput, Luigi Ranalli, Carla Verdi +4
Describing electron-phonon interactions in a solid requires knowledge of the electron-phonon matrix elements in the Hamiltonian. State-of-the-art first-principles calculations for…
First-principles theory of nonlinear long-range electron-phonon interaction
Matthew Houtput, Luigi Ranalli, Carla Verdi +4
Electron-phonon interactions in solids are crucial for understanding many interesting phenomena, such as conventional superconductivity, temperature-dependent band-gap renormalizat…
Analytic method for quadratic polarons in nonparabolic bands
Serghei N. Klimin, Jacques Tempere, Matthew Houtput +4
Including the effect of lattice anharmonicity on electron-phonon interactions has recently garnered attention due to its role as a necessary and significant component in explaining…
Polaron with Quadratic Electron-phonon Interaction
Stefano Ragni, Thomas Hahn, Zhongjin Zhang +9
We present the first numerically exact study of a polaron with quadratic coupling to the oscillator displacement, using two alternative methodological developments. Our results cov…
Stability conditions for a large anharmonic bipolaron
Matthew Houtput, Jacques Tempere
A large polaron is a quasiparticle that consists of a nearly free electron interacting with the phonons of a material, whose lattice parameters are much smaller than the polaron sc…
Optical conductivity of an anharmonic large polaron gas at weak coupling
Matthew Houtput, Jacques Tempere
In a polar solid, electrons or other charge carriers can interact with the phonons of the ionic lattice, leading to the formation of polaron quasiparticles. The optical conductivit…
Revisiting the Maxwell multipoles for vectorized angular functions
Matthew Houtput, Jacques Tempere
Across many areas of physics, multipole expansions are used to simplify problems, solve differential equations, calculate integrals, and process experimental data. Spherical harmon…
Beyond the Fröhlich Hamiltonian: Path integral treatment of large polarons in anharmonic solids
Matthew Houtput, Jacques Tempere
The properties of an electron in a typical solid are modified by the interaction with the crystal ions, leading to the formation of a quasiparticle: the polaron. Such polarons are…
Finite element simulation of the liquid-liquid transition to metallic hydrogen
Matthew Houtput, Jacques Tempere, Isaac F. Silvera
Hydrogen at high temperature and pressure undergoes a phase transition from a liquid molecular phase to a conductive atomic state, or liquid metallic hydrogen, sometimes referred t…