Eliashberg theory is a theory of superconductivity that describes the role of phonons in
providing the attractive interaction between two electrons. Phonon dynamics are taken into …

It is remarkable how the Fröhlich polaron, one of the simplest examples of a Quantum Field
Theoretical problem, as it basically consists of a single fermion interacting with a scalar Bose …

While basic features of polarons were well recognized a long time ago and have been
described in a number of review papers and textbooks, interest in the role of electron …

We study a single polaron in the Su-Schrieffer-Heeger (SSH) model using four different
techniques (three numerical and one analytical). Polarons show a smooth crossover from …

The effect of electron-electron interactions on Dirac fermions, and the possibility of an
intervening spin-liquid phase between the semimetal and antiferromagnetic (AF) regimes …

It is widely accepted that phonon-mediated high-temperature superconductivity is
impossible at ambient pressure, because of the very large effective masses of polarons or …

We present a unified and nonperturbative method for calculating spectral and transport
properties of Hamiltonians with simultaneous Holstein (diagonal) and Peierls (off-diagonal) …

The Holstein Hamiltonian describes fermions hopping on a lattice and interacting locally
with dispersionless phonon degrees of freedom. In the low-density limit, dressed …

We review recent work in the study of interfacial electronic states and electron–adsorbate
interactions with time-and angle-resolved two-photon photoemission (2PPE) spectroscopy …

We present a highly efficient yet accurate analytical approximation for the Green's function of
a Holstein polaron. It is obtained by summing all the self-energy diagrams, but with each self …