Studying the effect of the phonon coherence and inflow on the formation of hydrogen bonds in the $[(\rm{H}_2\rm{O})_2]^m$ cluster

TL;DR

This study investigates how phonon coherence and inflow influence the formation and dynamics of hydrogen bonds in water clusters, providing insights into quantum effects in chemical and biological systems.

Contribution

It introduces a phonon-based model to analyze the impact of coherence and inflow on hydrogen-bonded water clusters, highlighting quantum effects in their evolution.

Findings

Phonon coherence significantly affects cluster dynamics.

Inflow of phonons alters the evolution of hydrogen bonds.

Dark states emerge from coherent quantum evolution.

Abstract

In this paper, a simple $\rm{H}_2\rm{O}$-related hydrogen-bonded model is proposed, and different types of phonons are introduced to describe the macro- and micro- vibrations of particles in this model. $[(\rm{H}_2\rm{O})_2]^m$ cluster consisting of hydrogen-bonded systems is considered. The effect of phonon coherence on both unitary and dissipative evolutions is studied and compared with the incoherent case. Consideration is given to the dark states -- coherent states that arise from the evolution of open quantum systems. Consideration is also given to the effect of all potential phonon inflows on evolution. The results reveal important effects of phonon coherence and inflow on the dynamics of clusters and will be used as a basis to extend the research to more complex chemical and biological models.