Proposed cavity Josephson plasmonics with complex-oxide heterostructures

Abstract

We discuss how complex-oxide heterostructures that include high-Tc superconducting cuprates can be used to realize an array of sub-millimeter cavities that support Josephson plasmon polaritons. These cavities have several attractive features for new types of light matter interaction studies and we show that they promote "ultrastrong" coupling between THz frequency radiation and Josephson plasmons. Cavity electrodynamics of Josephson plasmons allows to manipulate the superconducting order-parameter phase coherence. As an example, we discuss how it could be used to cool superconducting phase fluctuations with light.

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Cited by in corpus (9)

• Nonlinear light-matter interaction at terahertz frequencies
• Cavity Quantum Materials
• Cavity-mediated thermal control of metal-to-insulator transition in 1T-TaS${}_2$
• Manipulating quantum materials with quantum light
• Gauge Fixing for Strongly Correlated Electrons coupled to Quantum Light
• Optical dressing of the electronic response of two-dimensional semiconductors in quantum and classical descriptions of cavity electrodynamics
• Mott polaritons in cavity-coupled quantum materials
• Principles of 2D terahertz spectroscopy of collective excitations: the case of Josephson plasmons in layered superconductors
• Cavity-renormalized quantum criticality in a honeycomb bilayer antiferromagnet