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Regensburg 2013 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 13: Symposium: Strong Coupling in Solid State Quantum Systems (SYSC)

DY 13.1: Hauptvortrag

Dienstag, 12. März 2013, 09:30–10:00, H1

Exploring the Physics of Superconducting Qubits Strongly Coupled to Microwave Frequency Photons — •Andreas Wallraff — ETH Zurich, Switzerland

Using modern micro and nano-fabrication techniques combined with superconducting materials we realize electronic circuits the properties of which are governed by the laws of quantum mechanics. In such circuits the strong interaction of photons with superconducting quantum two-level systems allows us to probe fundamental quantum properties of light and to develop components for applications in quantum information technology. Here, I will present experiments in which we have created and probed entanglement between stationary qubits and microwave photons freely propagating down a transmission line [1,2]. In these experiments we use superconducting parametric amplifiers realized in our lab [3] to detect both qubit and photon states efficiently. Using similar techniques we aim at demonstrating a deterministic scheme for teleportation of quantum states in a macroscopic system based on superconducting circuits.
[1] C. Eichler et al., Phys. Rev. A 86, 032106 (2012)
C. Eichler et al., Phys. Rev. Lett., in print (2012) [arXiv:1209.0441]
C. Eichler et al., Phys. Rev. Lett. 107, 113601 (2011)

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