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PreprintCC BY 4.0arXiv

Exciton-driven coherent dressing in transient absorption

  • Jinyuan Wu
  • Chang Shu
  • Yang-hao Chan
  • Diana Y. Qiu
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Abstract

While coherent excitons have recently been observed to dress electronic states in time- and angle-resolved photoemission spectroscopy (tr-ARPES), exciton-driven dressing in optical spectroscopy remains largely unexplored. This work develops a theoretical and computational approach to exciton-driven dressing effects in transient absorption spectroscopy in the time-dependent adiabatic GW formalism and derives two symmetry- and band topology-protected selections rules for exciton-dressed transient absorption, unique from tr-ARPES. We then numerically calculate exciton-dressed transient absorption spectra of monolayer MoS2 and demonstrate the selection rules and their lifting after symmetry breaking.

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Cite

BibTeXRIS
BibTeX
@misc{wu2026excitondriven,
  title = {{Exciton-driven coherent dressing in transient absorption}},
  author = {Jinyuan Wu and Chang Shu and Yang-hao Chan and Diana Y. Qiu},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.36263},
  eprint = {2610.36263},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.36263},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Exciton-driven coherent dressing in transient absorption
AU  - Jinyuan Wu
AU  - Chang Shu
AU  - Yang-hao Chan
AU  - Diana Y. Qiu
PY  - 2026
DA  - 2026/10/26
PB  - arXiv
DO  - 10.48550/arxiv.2610.36263
UR  - https://arxiv.org/abs/2610.36263
AB  - While coherent excitons have recently been observed to dress electronic states in time- and angle-resolved photoemission spectroscopy (tr-ARPES), exciton-driven dressing in optical spectroscopy remains largely unexplored. This work develops a theoretical and computational approach to exciton-driven dressing effects in transient absorption spectroscopy in the time-dependent adiabatic GW formalism and derives two symmetry- and band topology-protected selections rules for exciton-dressed transient absorption, unique from tr-ARPES. We then numerically calculate exciton-dressed transient absorption spectra of monolayer MoS2 and demonstrate the selection rules and their lifting after symmetry breaking.
ER  -