Lattice exciton-polaron problem by quantum Monte Carlo simulations
Martin Hohenadler, Peter B. Littlewood, Holger Fehske
TL;DR
This paper uses quantum Monte Carlo simulations to study how exciton-polarons form and behave in one-dimensional lattice models, revealing how their size depends on interaction strength and phonon fluctuations.
Contribution
It introduces a detailed quantum Monte Carlo approach to analyze exciton-polaron formation in 1D lattice models with various carrier-phonon interactions, highlighting the role of phonon fluctuations.
Findings
Exciton-polaron size varies with interaction strength and coupling sign.
Quantum phonon fluctuations influence polaron size and state translation invariance.
States remain translation-invariant at all finite couplings.
Abstract
Exciton-polaron formation in one-dimensional lattice models with short or long-range carrier-phonon interaction is studied by quantum Monte Carlo simulations. Depending on the relative sign of electron and hole-phonon coupling, the exciton-polaron size increases or decreases with increasing interaction strength. Quantum phonon fluctuations determine the (exciton-)polaron size and yield translation-invariant states at all finite couplings.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.