000230800 001__ 230800
000230800 005__ 20181203024821.0
000230800 0247_ $$2doi$$a10.1038/s41699-017-0011-9
000230800 022__ $$a2397-7132
000230800 02470 $$2ISI$$a000406645200001
000230800 037__ $$aARTICLE
000230800 245__ $$aNonlinear graphene quantum capacitors for electro-optics
000230800 260__ $$bNature Publishing Group$$c2017$$aLondon
000230800 269__ $$a2017
000230800 300__ $$a7
000230800 336__ $$aJournal Articles
000230800 520__ $$aOwing to its peculiar energy dispersion, the quantum capacitance property of graphene can be exploited in a two- dimensional layered capacitor configuration. Using graphene and boron nitride, respectively, as the electrodes and the insulating dielectric, a strongly nonlinear behavior at zero bias and small voltages is obtained. When the temperature is sufficiently low, the strong nonlinear interaction emerging from the quantum capacitance exhibits a diverse range of phenomena. The proposed structure could take over the functionalities of nonlinear elements in many cryogenic quantum systems, and in particular, quantum electrooptics. It is shown that ultrastrong coupling is easily reached with small number of pump photons at temperatures around 1 K and capacitor areas of the order of 1 mu m(2). A measure of anharmonicity is defined and as potential applications, a qubit design as well as schemes for non- reciprocal devices such as an electromagnetic frequency circulator are discussed.
000230800 700__ $$uSharif Univ Technol, Sch Elect Engn, Tehran, Iran$$aKhorasani, Sina
000230800 700__ $$uEcole Polytech Fed Lausanne, LPQM, CH-1015 Lausanne, Switzerland$$aKoottandavida, Akshay
000230800 773__ $$j1$$tNpj 2D Materials And Applications$$q1-7
000230800 909C0 $$0252348$$pLPQM
000230800 909CO $$particle$$ooai:infoscience.tind.io:230800$$pSB$$pSTI
000230800 917Z8 $$x268358
000230800 937__ $$aEPFL-ARTICLE-230800
000230800 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000230800 980__ $$aARTICLE