We present a hybrid quantum-classical simulation of charge-polaron transport in conjugated polymers. The charge, which couples to the angular rotations monomers, is modeled via time-dependent Schr\"odinger equation, while monomers are treated classically Ehrenfest equations motion. In addition, system thermalized by assuming that subject Brownian fluctuations Langevin equation. Charge coupling ...

By explicitly tracking the Marshall sign, a phase string induced by hopping is revealed in the one-hole-doped t−J model. It is rigorously shown that such a phase string cannot be eliminated through low-lying spin excitations, and it either causes the spectral weight Z = 0, or leads to the localization of the doped hole. Implications for finite doping are also discussed. 71.27.+a, 74.20.Mn, 75.1...

We study the charge transport by polarons in conjugated polymers in the presence of impurities. The effects on the polaron motion due to the symmetry of the chain is considered. The polaron dynamics in doped conjugated polymers is numerically studied using the Su-Schrieffer-Heeger (SSH) model combined with the Pariser-ParrPople (PPP) model modified to include an external electric field and the ...

The authors experimentally prepare and investigate the properties of a strongly interacting imbalanced mixture bosonic 41K impurities immersed in Fermi sea ultracold 6Li atoms. Two configurations have been explored: thermal regime described by polaron picture partially Bose-Einstein-condensed coexisting Bose polarons.

Graphene nanoribbons (GNRs) are emerging materials inheriting excellent properties from graphene while potentially exhibiting semiconducting behavior. All these features sparked numerous efforts to insert GNRs in nanoelectronics. As a result, synthesis routes with atomic resolution now reality. Recently, the rise of heterojunction (HJ) engineering pushed even further prospects, allowing blendin...

The optical absorption of the Fröhlich polaron model is obtained by an approximation-free diagrammatic Monte Carlo method and compared with two new approximate approaches that treat lattice relaxation effects in different ways. We show that: (i) a strong coupling expansion, based on the Franck-Condon principle, well describes the optical conductivity for large coupling strengths (alpha > 10); (...

We study the dynamics of three-dimensional polaron - a quantum particle coupled to bosonic fields in quasi-classical regime. In this case are very intense and corresponding degrees freedom can be treated semiclassically. prove that such regime effective for particles is approximated by one generated time-dependent point interaction, i.e., singular perturbation Laplacian supported point. As by-p...

A new variational approach is proposed at zero temperature for a finite density of charge carriers in order to study ground state features the Frohlich model including electron-electron and electron-phonon interactions. Within intermediate coupling regime characteristic large polarons, takes into account on same footing polaron formation polaron-polaron correlations which play relevant role goi...