English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Photoinduced Electron Pairing in a Driven Cavity

MPS-Authors
/persons/resource/persons224588

Buzzi,  M.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

/persons/resource/persons133811

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;

Fulltext (public)

PhysRevLett.125.053602.pdf
(Publisher version), 559KB

Supplementary Material (public)

Photo_induced_pairing_reresubmit_SM.pdf
(Supplementary material), 525KB

Citation

Gao, H., Schlawin, F., Buzzi, M., Cavalleri, A., & Jaksch, D. (2020). Photoinduced Electron Pairing in a Driven Cavity. Physical Review Letters, 125(5): 053602. doi:10.1103/PhysRevLett.125.053602.


Cite as: http://hdl.handle.net/21.11116/0000-0006-02ED-D
Abstract
We demonstrate how virtual scattering of laser photons inside a cavity via two-photon processes can induce controllable long-range electron interactions in two-dimensional materials. We show that laser light that is red (blue) detuned from the cavity yields attractive (repulsive) interactions whose strength is proportional to the laser intensity. Furthermore, we find that the interactions are not screened effectively except at very low frequencies. For realistic cavity parameters, laser-induced heating of the electrons by inelastic photon scattering is suppressed and coherent electron interactions dominate. When the interactions are attractive, they cause an instability in the Cooper channel at a temperature proportional to the square root of the driving intensity. Our results provide a novel route for engineering electron interactions in a wide range of two-dimensional materials including AB-stacked bilayer graphene and the conducting interface between LaAlO3 and SrTiO3.