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SUMMARY:Altering electrical transport in 2D materials through sub-waveleng
 th cavities - Marco Polini\, University of Pisa
DTSTART:20251106T140000Z
DTEND:20251106T153000Z
UID:TALK236080@talks.cam.ac.uk
CONTACT:Gaurav
DESCRIPTION:The question of whether sub-wavelength cavities can alter the 
 transport properties of quantum materials is currently attracting a great 
 deal of attention. In this talk I will first present a theoretical framewo
 rk [1] that allows to quantify the impact of dark sub-wavelength cavities 
 on the properties of quantum materials. I will then show that a paradigmat
 ic magneto-transport phenomenon in two-dimensional (2D) metals\, i.e. Shub
 nikov-de Haas oscillations\, is modified by the modes of a sub-wavelength 
 cavity [2]. This effect is intrinsic\, totally unrelated to disorder\, and
  stems from the fact that the polariton modes of the cavity alter the Land
 au parameters of the underlying normal Fermi liquid. As an illustrative ex
 ample\, I will discuss explicit calculations of the Fermi liquid parameter
 s of graphene in a planar van der Waals cavity comprising natural hyperbol
 ic crystals and metal gates. Finally\, if time allows\, I will show that s
 ub-wavelength cavities can boost the critical temperature of non-phonon su
 perconductors [3].\n\n\n[1] G. M. Andolina et al.\, Phys. Rev. B 109\, 104
 513 (2024).\n\n[2] R. Riolo et al.\, Proc. Natl. Acad. Sci. (USA) 122\, e2
 407995122 (2025).\n\n[3] R. Riolo et al.\, to appear on arXiv.
LOCATION:Seminar Room 3\, RDC
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