June 30, 2025 to July 4, 2025
Europe/Vienna timezone

Efficient excitation energy transfer in a bio-inspired stacked nanoscale quantum emitter ring geometry

Jul 3, 2025, 3:15 PM
1h 45m
Poster only Quantum technologies, quantum optics, cavity QED, quantum information Poster Session 3

Speaker

Arpita Pal (Institut für Theoretische Physik, Universität Innsbruck)

Description

Nature relies on biological light-harvesting (LH) complexes to capture and transfer solar energy to the reaction center with supreme efficiency. These LH complexes can be modeled theoretically as subwavelength rings of optical dipoles [1-4] which partially explains their outstanding collective optical properties. Taking inspiration from the oligomeric geometry of biological LH2 complexes [5, 6], here theoretically we propose a nonameric stacked three-dimensional (3D) ring geometry formed of two-level atoms with a diameter of 400 nm [7]. This 3D ring structure enables efficient inter-ring excitation transfer, in particular from the sparse to dense ring layer, when operated at zero temperature [7]. Our findings will be useful for designing artificial nanophotonic geometries utilizing different platforms operating at cryogenic temperature, where the interacting dipole description is both valid and dominant, to facilitate efficient energy transfer.

[1] M. Moreno-Cardoner et al., Phys. Rev. A 100, 023806 (2019)
[2] J. A. Needham et al., New J. Phys. 21, 073061 (2019)
[3] V. Scheil et al., Nanomaterials 13, 851 (2023)
[4] R. Holzinger et al., Optica Quantum 2, 57 (2024)
[5] G. McDermott et al., Nature 374, 517 (1995)
[6] D. Montemayor et al., J. Phys. Chem. B 122, 3815 (2018)
[7] A. Pal et al., arXiv:2409.15288 (2024)

Grant acknowledgments:
This research was funded in whole or in part by the Austrian Science Fund (FWF) 10.55776/ESP682. We also acknowledge support from Forschungsgruppe FG 5 (FWF); 10.55776/W1259 (FWF) (R.H.); 10.55776/COE1 (quantA) (R.H.); Grant No. PID2020-114626GB-I00 from the MICIN/AEI/10.13039/501100011033 (Government of Spain) (M.M-C).

Authors

Arpita Pal (Institut für Theoretische Physik, Universität Innsbruck) Raphael Holzinger (Institut für Theoretische Physik, Universität Innsbruck) Maria Moreno-Cardoner (Universitat de Barcelona) Helmut Ritsch (Institut für Theoretische Physik, Universität Innsbruck)

Presentation materials

There are no materials yet.