PreprintCC BY 4.0arXiv
From ⟨ n ⟩ to n: Separating multi-particle dynamics by intensity cycling
Abstract
We address the interpretation of transient spectroscopy signals proportional to average excitation number in terms of discrete number of excitations. Building on our recent intensity cycling approach, we derive a general scheme to isolate multi-particle dynamics from any transient signal under minimal assumptions. The key result is a general formula expressing the extracted nonlinear signal terms by multi-excitation propagators. We demonstrate the approach on exciton transport and annihilation in organic nanoparticles, and carrier recombination in silicon nanocrystals.
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BibTeX
@misc{maly2026from,
title = {{From $\langle n \rangle$ to $n$: Separating multi-particle dynamics by intensity cycling}},
author = {Pavel Malý and František Trojánek and Petr Malý and Jérémie Léonard},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2609.28185},
eprint = {2609.28185},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.28185},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - From ⟨ n ⟩ to n: Separating multi-particle dynamics by intensity cycling
AU - Pavel Malý
AU - František Trojánek
AU - Petr Malý
AU - Jérémie Léonard
PY - 2026
DA - 2026/10/06
PB - arXiv
DO - 10.48550/arxiv.2609.28185
UR - https://arxiv.org/abs/2609.28185
AB - We address the interpretation of transient spectroscopy signals proportional to average excitation number in terms of discrete number of excitations. Building on our recent intensity cycling approach, we derive a general scheme to isolate multi-particle dynamics from any transient signal under minimal assumptions. The key result is a general formula expressing the extracted nonlinear signal terms by multi-excitation propagators. We demonstrate the approach on exciton transport and annihilation in organic nanoparticles, and carrier recombination in silicon nanocrystals.
ER -