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9 papers · 2 filters
Spin Hall Effect of Excitons
Shun-ichi Kuga, Shuichi Murakami, Naoto Nagaosa
Spin Hall effect for excitons in alkali halides and in Cu_2O is investigated theoretically. In both systems, the spin Hall effect results from the Berry curvature in k space, which…
Transport and localization in periodic and disordered graphene superlattices
Yury P. Bliokh, Valentin Freilikher, Sergey Savel'ev +1
We study charge transport in one-dimensional graphene superlattices created by applying layered periodic and disordered potentials. It is shown that the transport and spectral prop…
Topological states and braiding statistics using quantum circuits
J. Q. You, Xiao-Feng Shi, Franco Nori
Using superconducting quantum circuits, we propose an approach to construct a Kitaev lattice, i.e., an anisotropic spin model on a honeycomb lattice with three types of nearest-nei…
Electronic properties of the armchair graphene nanoribbon
A. V. Rozhkov, S. Savel'ev, Franco Nori
We investigate the electronic band structure of an undoped graphene armchair nanoribbon. We demonstrate that such nanoribbon always has a gap in its electronic spectrum. Indeed, ev…
Cooling a mechanical resonator via coupling to a tunable double quantum dot
Shi-Hua Ouyang, J. Q. You, Franco Nori
We study the cooling of a mechanical resonator (MR) that is capacitively coupled to a double quantum dot (DQD). The MR is cooled by the dynamical backaction induced by the capaciti…
Large temperature dependence of the Casimir force at the metal-insulator transition
E. G. Galkina, B. A. Ivanov, Sergey E. Savel'ev +2
The dependence of the Casimir force on material properties is important for both future applications and to gain further insight on its fundamental aspects. Here we derive a genera…