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)

Multimode Organic Polariton Lasing. K. B. Arnardottir, A. J. Moilanen, A. Strashko, P. Törmä, and J. Keeling. Phys. Rev. Lett. 125 233603 (2020)

Few-emitter lasing in single ultra-small nanocavities. O. S. Ojambati, K. B. Arnardóttir, B. W. Lovett, J. Keeling, and J. J. Baumberg
Nanophotonics (2024) (DOI: 10.1515/nanoph-2023-0706)

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)

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

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)

Efficient many-body non-Markovian dynamics of organic polaritons. P. Fowler-Wright, B. W. Lovett, J. Keeling. Phys. Rev. Lett. 129 173001 (2022)

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