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Tomorrow

  1. Gabriel Poulin-Lamarre
    • 12:30
    • D3-2040
    • To be announced

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Mon, 05/27/2013 - 12:30

  1. Susanne Butz, Physikalisches Institut, Karlsruhe Institute of Technology, Karlsruhe, Germany.
    • 12:30
    • D3-2040
    • Title: A Tunable Josephson Metamaterial

      Abstract: We present experimental data on a tunable magnetic metamaterial consisting of rf-SQUIDs. A metamaterial is a medium constructed of artifical elements, so- called meta-atoms, that interact in a specific way with an incoming electromagnetic wave. The size of and the distance between the individual meta-atoms is much smaller than the wavelength. Our metamaterial consists of one-dimensional arrays of 27 rf-SQUIDs, one chain placed inside each of the gaps of a coplanar waveguide. Due to the nonlinear inductance of the rf-SQUID, its resonance frequency is tunable in situ by applying a dc magnetic field. We demonstrate that this results in tunable effective parameters of our metamaterial. In order to obtain the effective magnetic permeability from the measured data, we employ a technique that uses only the complex transmission coefficient S21.

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Mon, 06/03/2013 - 12:30

  1. Bhaskar Roy Bardhan, Department of Physics and Astronomy, Louisiana State University
    • 12:30
    • D3-2040
    • To be annonced

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Wed, 06/05/2013 - 10:45

  1. INTRIQ : Lilian Childress, McGill
    • 10:45
    • D1-2165
    • Title: Spins and photons: toward quantum networks in diamond

      Abstract: Long-lived electronic and nuclear spin states have made nitrogen-vacancy (NV) defects in diamond a leading candidate for solid-state quantum information processing. Moreover, their coherent optical transitions open opportunities for quantum communication. This talk will consider the motivation and requirements for optically-networked quantum devices, and explore challenges and opportunities for realizing them in diamond. In particular, the resonant excitation and emission in these defect centers enables single shot spin detection as well as observation of two-photon quantum interference; these two capabilities have enabled measurement-based entanglement between remote NV centers.

    • Voir Google Calendar

Mon, 06/10/2013 - 12:30

  1. Frank Verstraete , Université de Vienne
    • 12:30
    • D3-2040
    • To be announced

    • Voir Google Calendar
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Langlois A, Poirier M, Bourbonnais C, Foury-Leylekian P, Moradpour A, Pouget J-. Microwave dielectric study of spin-Peierls and charge-ordering transitions in (TMTTF )2PF6 salts. Physical Review B. 2010;81.
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Doiron-Leyraud N, Auban-Senzier P, René de Cotret S, Bourbonnais C, Jérome D, Bechgaard K, et al. Correlation between linear resistivity and Tc in the Bechgaard salts and the pnictide superconductor Ba ( Fe1-x Cox )2 As2. Physical Review B. 2009;80.
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Bourbonnais C, Sedeki A. Link between antiferromagnetism and superconductivity probed by nuclear spin relaxation in organic conductors. Physical Review B. 2009;80.
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Kajiwara K, Tsuchiizu M, Suzumura Y, Bourbonnais C. Mechanism for the singlet to triplet superconductivity crossover in quasi-one-dimensional organic conductors. Journal of the Physical Society of Japan. 2009;78.
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Sedeki A, Bergeron D, Bourbonnais C. Interfering antiferromagnetism and superconductivity in quasi-one-dimensional organic conductors. Physica B: Condensed Matter. 2009.
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Tsuchiizu M, Suzumura Y, Bourbonnais C. Effect of interchain frustration in quasi-one-dimensional conductors at half-filling. Journal of Physics Condensed Matter. 2007;19.
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Tsuchiizu M, Suzumura Y, Bourbonnais C. Interchain-frustration-induced metallic state in quasi-one-dimensional mott insulators. Physical Review Letters. 2007;99.
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Fuseya Y, Tsuchiizu M, Suzumura Y, Bourbonnais C. Role of interchain hopping in the magnetic susceptibility of quasi-one-dimensional electron systems. Journal of the Physical Society of Japan. 2007;76.
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Bakrim H, Bourbonnais C. Quantum vs classical aspects of one dimensional electron-phonon systems revisited by the renormalization group method. Physical Review B. 2007;76.
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Nickel JC, Duprat R, Bourbonnais C, Dupuis N. Superconducting pairing and density-wave instabilities in quasi-one-dimensional conductors. Physical Review B. 2006;73.
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