Dresden 2014 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 6: Transport: Quantum Coherence and Quantum Information Systems - Theory I

TT 6.6: Vortrag

Montag, 31. März 2014, 12:15–12:30, HSZ 204

Metamaterials for circuit QED: Quantum simulations and other applications — •Bruno G. Taketani and Frank K. Wilhelm — Saarland University, Saarbrücken, Germany

The ability to design periodically structured materials not present in nature provides scientists with new tools, ranging from sub-wavelength imaging to well controlled band structures for wave propagation in photonic crystals. Superconducting metamaterials have been recently proposed to manipulate the density-of-modes of transmission lines [1]. We further build on these ideas and develop a toolbox for environment manipulation based on nano-structured, periodic, lossless, superconducting circuits. In particular we show that high density of low energy states can be achieved using a superlattice arrangement of left-handed circuit elements. Multimode, ultra-strong coupling of superconducing qubits to such engineered environments thus allow for experimental implementation of quantum simulation of interesting new phenomena as well as for complex quantum state engineering.
D. J. Egger and F. K. Wilhelm, Phys. Rev. Lett. 111, 163601 (2013)