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Modelling organic polariton dynamics with strong vibronic effects.

ORAL · Invited

Abstract

I will review different approaches to modelling the competition between strong light matter coupling and strong coupling to vibrational modes, and how these can be combined with mean-field and beyond-mean-field approaches to descriptions of light matter coupling. I will discuss variants of the Holstein-Tavis-Cummings Hamiltonian, including applications to understanding polariton lasing and transport. I will also discuss how vibrational modes can be included as a non-Markovian environment, by adapting process tensor (PT) methods . The PT is an object which encodes all multi-time correlations of the environment, and crucially, can be represented efficiently wiht a tensor network. I will discuss how this can be used to understand the effect of low-frequency vibrational modes on polariton condensation and energy transport between different molecular species.

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Publication: Polariton condensation with saturable molecules dressed by vibrational modes. J. A. Cwik, S. Reja, P. B. Littlewood, and J. Keeling. EPL 105 47009 (2014)<br><br>Multimode Organic Polariton Lasing. K. B. Arnardottir, A. J. Moilanen, A. Strashko, P. Törmä, and J. Keeling. Phys. Rev. Lett. 125 233603 (2020)<br><br>Few-emitter lasing in single ultra-small nanocavities. O. S. Ojambati, K. B. Arnardóttir, B. W. Lovett, J. Keeling, and J. J. Baumberg<br>Nanophotonics (2024) (DOI: 10.1515/nanoph-2023-0706)<br><br>Efficient non-Markovian quantum dynamics using time-evolving matrix product operators. A. Strathearn, P. Kirton, D. Kilda, J. Keeling, B. W. Lovett. Nature Commun. 9, 3322 (2018) <br><br>Numerically-exact simulations of arbitrary open quantum systems using automated compression of environments. M. Cygorek, M. Cosacchi, A. Vagov, V. M. Axt, B. W. Lovett, J. Keeling, E. M. Gauger<br><br>OQuPy: A Python package to efficiently simulate non-Markovian open quantum systems with process tensors. G. E. Fux, P. Fowler-Wright, J. Beckles, E. P. Butler, P. R. Eastham, D. Gribben, J. Keeling, D. Kilda, P. Kirton, E. D. C. Lawrence, B. W. Lovett, E. O'Neill, A. Strathearn, and R. de Wit. J. Chem. Phys. 161 (2024) (DOI: 10.1063/5.0225367)<br><br>Efficient many-body non-Markovian dynamics of organic polaritons. P. Fowler-Wright, B. W. Lovett, J. Keeling. Phys. Rev. Lett. 129 173001 (2022) <br><br>Non-Markovian effects in long-range polariton-mediated energy transfer. K. B. Arnardottir, P. Fowler-Wright, C. Tserkezis, B. W. Lovett, J. Keeling. http://arxiv.org/abs/2411.00503v1

Presenters

  • Jonathan Keeling

    University of St Andrews

Authors

  • Jonathan Keeling

    University of St Andrews