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Cavity-mediated electron-photon superconductivity

MPG-Autoren
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Cavalleri,  A.
Clarendon Laboratory, University of Oxford;
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Externe Ressourcen

https://arxiv.org/abs/1804.07142
(Preprint)

https://dx.doi.org/10.1103/PhysRevLett.122.133602
(Verlagsversion)

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Volltexte (frei zugänglich)

PhysRevLett.122.133602.pdf
(Verlagsversion), 630KB

Ergänzendes Material (frei zugänglich)

supplementary_information_accepted.pdf
(Ergänzendes Material), 2MB

Zitation

Schlawin, F., Cavalleri, A., & Jaksch, D. (2019). Cavity-mediated electron-photon superconductivity. Physical Review Letters, 122(13): 133602. doi:10.1103/PhysRevLett.122.133602.


Zitierlink: https://hdl.handle.net/21.11116/0000-0001-E60F-C
Zusammenfassung
We investigate electron paring in a two-dimensional electron system mediated by vacuum fluctuations inside a nanoplasmonic terahertz cavity. We show that the structured cavity vacuum can induce long-range attractive interactions between current fluctuations which lead to pairing in generic materials with critical temperatures in the low-Kelvin regime for realistic parameters. The induced state is a pair density wave superconductor which can show a transition from a fully gapped to a partially gapped phase - akin to the pseudogap phase in high-Tc superconductors. Our findings provide a promising tool for engineering intrinsic electron interactions in two-dimensional materials.