Transport properties of nonequilibrium systems under the application of light: Photoinduced quantum Hall insulators without Landau levels

By Takuya Kitagawa, T. Oka, A. Brataas, Liang Fu, E. Demler. 2011

717 citations recorded by the source corpus.

In this paper, we study transport properties of non-equilibrium systems under the application of light in many-terminal measurements, using the Floquet picture. We propose and demonstrate that the quantum transport properties can be controlled in materials such as graphene and topological insulators, via the application of light. Remarkably, under the application of off-resonant light, topological transport properties can be induced; these systems exhibits quantum Hall effects in the absence of a magnetic field with a near quantization of the Hall conductance, realizing so-called quantum Hall systems without Landau levels first proposed by Haldane.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/01792cd2f85f6472f9582facc6b1b035377d590e

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Floquet topological transitions in a driven one-dimensional topological insulator (2015, background): “The sample could be either graphene [5,6,8,14], a trivial insulator [7], a superconductor [15], a three-dimensional Dirac semimetal [16], or a topological insulator [17].”
Light-induced anomalous Hall effect in graphene (2018, neutral): “The laser electric field strength required to open an observable topological gap is estimated to be of the order of 10 7 -10 8 V/m, even at mid-infrared wavelengths where the effect is enhanced 4,5,15 .”
Periodic table for Floquet topological insulators (2016, background): “[17] Takuya Kitagawa, Takashi Oka, Arne Brataas, Liang Fu, and Eugene Demler, “Transport properties of nonequilibrium systems under the application of light: Photoinduced quantum Hall insulators without Landau levels,” Phys.”
Anomalous edge states and the bulk-edge correspondence for periodically-driven two dimensional systems (2012, background): “In the case of periodically driven systems, some robust topological phenomena have been demonstrated to be stabilized by additional symmetries such as an effective time-reversal symmetry [12,15,17].”
Quantum Electrodynamic Control of Matter: Cavity-Enhanced Ferroelectric Phase Transition (2020, background): “Other seminal works studying control of matter by light include Floquet engineering of electronic band structures [8–12], and photo-induced pumping by ultrashort laser pulses for creating metastable nonequilibrium states [13–28].”