Quantum holography in a graphene flake with an irregular boundary

Autor:	Chen, Anffany, Ilan, R., de Juan, F., Pikulin, D. I., Franz, M.
Rok vydání:	2018
Předmět:	Condensed Matter - Strongly Correlated Electrons Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Phys. Rev. Lett. 121, 036403 (2018)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.121.036403
Popis:	Electrons in clean macroscopic samples of graphene exhibit an astonishing variety of quantum phases when strong perpendicular magnetic field is applied. These include integer and fractional quantum Hall states as well as symmetry broken phases and quantum Hall ferromagnetism. Here we show that mesoscopic graphene flakes in the regime of strong disorder and magnetic field can exhibit another remarkable quantum phase described by holographic duality to an extremal black hole in two dimensional anti-de Sitter space. This phase of matter can be characterized as a maximally chaotic non-Fermi liquid since it is described by a complex fermion version of the Sachdev-Ye-Kitaev model known to possess these remarkable properties. Comment: 5 pages main text plus 4 pages supplement; V2 published version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1802.00802 Zobrazit plný text záznamu View this record from Arxiv