A quantum model of almost perfect energy transfer

TL;DR

This paper develops a quantum model for near-perfect energy transfer between two centers mediated by a continuum, providing analytical estimates and conditions for optimal transfer, relevant to nanoscale biological and quantum systems.

Contribution

It introduces a Wigner-Weisskopf-type model for energy transfer, incorporating environmental noise into the tight-binding framework, and derives conditions for near-perfect transfer efficiency.

Findings

Analytical estimation of energy transfer efficiency in weak coupling regime

Conditions for almost perfect energy transfer identified

Embedding of tight-binding model into Wigner-Weisskopf framework with noise

Abstract

The Wigner-Weisskopf-type model describing the energy transfer between two centers mediated by a continuum of energy levels is studied. This work is motivated by the recent interest in transport phenomena at nanoscale in biology and quantum engineering. The analytical estimation for the energy transfer efficiency is derived in the weak coupling regime and the conditions for the almost perfect transfer are discussed. The embedding of the standard tight-binding model into Wigner-Weisskopf one which includes the environmental noise is presented.