# Towards high-temperature coherence-enhanced transport in few-atomic   layers heterostructures

**Authors:** Chahan M. Kropf, Angelo Valli, Paolo Franceschini, Giuseppe Luca, Celardo, Massimo Capone, Claudio Giannetti, Fausto Borgonovi

arXiv: 1812.08105 · 2019-07-26

## TL;DR

This paper explores how quantum coherence, specifically superradiance, can be used to enhance charge transport efficiency in few-atomic-layer heterostructures at high temperatures, despite dephasing and interactions.

## Contribution

It demonstrates that superradiance can optimize quantum transport in TMO heterostructures, remaining robust against dephasing and Coulomb interactions.

## Key findings

- Superradiance enhances charge transport efficiency.
- Robustness of quantum coherence against dephasing.
- Applicability to real TMO heterostructures.

## Abstract

The possibility to exploit quantum coherence to strongly enhance the efficiency of charge transport in solid state devices working at ambient conditions would pave the way to disruptive technological applications. In this work, we tackle the problem of the quantum transport of photogenerated electronic excitations subject to dephasing and on-site Coulomb interactions. We show that the transport to a continuum of states representing metallic collectors can be optimized by exploiting the "superradiance" phenomena. We demonstrate that this is a coherent effect which is robust against dephasing and electron-electron interactions in a parameters range that is compatible with actual implementation in few monolayers transition-metal-oxide (TMO) heterostructures.

## Full text

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## Figures

10 figures with captions in the complete paper: https://tomesphere.com/paper/1812.08105/full.md

## References

68 references — full list in the complete paper: https://tomesphere.com/paper/1812.08105/full.md

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Source: https://tomesphere.com/paper/1812.08105