Incoherent charge transport in an organic polariton condensate

Abstract

We study how polariton condensation modifies charge transport in organic materials. In typical organic materials, charge transport proceeds via incoherent hopping. We therefore provide an approach to determine how the rate and final state of this hopping process is affected by strong matter-light coupling and polariton condensation. We show how the hopping process may create excitations when starting from a state with a finite excitation density. That is, how hopping can change the state of a lower polariton condensate by creating upper polaritons, optically inactive excitonic dark states, or by exciting vibrational sidebands. While the matrix elements for these processes can be large, for typical materials at room temperature, such excitations are suppressed by thermal factors, and ground state processes dominate. We thus study how the ground state hopping rate depends on condensate density, matter-light coupling, and cavity photon detuning. All these factors change the vibrational configuration associated with the optically active molecules, which can enhance or suppress hopping by increasing or decreasing the vibrational overlap with the state of a charged molecule. We show that hopping rates can be exponentially sensitive to detuning and condensate density, allowing an increase or decrease of hopping rate by two orders of magnitude.

21 pages, 8 figures

References in corpus (16)

• Quantum fluids of light
• Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5
• Extraordinary exciton conductance induced by strong coupling
• Cavity enhanced transport of excitons
• Dark state semilocalization of quantum emitters in a cavity
• Catalysis by Dark States in Vibropolaritonic Chemistry
• When polarons meet polaritons: Exciton-vibration interactions in organic molecules strongly coupled to confined light fields
• Theory of Vibrational Polariton Chemistry in the Collective Coupling Regime
• Collective vibrational strong coupling effects on molecular vibrational relaxation and energy transfer: Numerical insights via cavity molecular dynamics simulations
• Driving chemical reactions with polariton condensates
• Nonequilibrium effects of cavity leakage and vibrational dissipation in thermally-activated polariton chemistry
• A quantum optics approach to photoinduced electron transfer in cavities
• Accelerating Polaritons with External Electric and Magnetic Fields
• Enhanced scattering between electrons and exciton-polaritons in a microcavity
• Terahertz field control of interlayer transport modes in cuprate superconductors
• Efficient linear scaling mapping for permutation symmetric Fock spaces

Cited by in corpus (4)

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