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Today

  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.

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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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Tremblay A-, Fourcade B, Breton P. Multifractals and Noise in Metal-Insulator Mixtures. Vol 157.; 1989.
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application/pdf iconMultifractals_and_noise_in_metal-insulator_mixtures.pdf
Aharony A, Blumenfeld R, Breton P, Fourcade B, Harris AB, Meir Y, et al. Negative Moments of Currents In Percolating Resistor Networks. Physical Review B. 1989;40:7318-20.
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application/pdf iconPhysRevB.40.7318.pdf
Tremblay A-, Fourcade B, Breton P. Famille d'exposants pour les propriétés électriques des fractals. Vol 11.; 1987.
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application/pdf iconFamille_exposants_pour_proprietes_electriques_des_fractals.pdf
Fourcade B, Breton P, Tremblay A-. Multifractals and critical phenomena in percolating networks: Fixed point, gap scaling, and universality. Physical Review B. 1987;36:8925-8.
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application/pdf iconPhysRevB.36.8925.pdf
Tremblay A-, Feng S, Breton P. Exponents for 1/f noise, near a continuum percolation threshold. Physical Review B. 1986;33:2077-80.
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application/pdf iconPhysRevB.33.2077.pdf
Rammal R, Tannous C, Breton P, Tremblay A-. Flicker (1f) noise in percolation networks: A new hierarchy of exponents. Physical Review Letters. 1985;54:1718-21.
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application/pdf iconPhysRevLett.54.1718.pdf
Lemieux MA, Breton P, Tremblay A-. Unified Approach to Numerical Transfer Matrix Methods for Disordered Systems: Applications to Mixed Crystals and to Elasticity Percolation. Journal de physique - Lettres. 1985;46:L1-L7.
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application/pdf iconUnified_approach_to_numerical_transfert_matrix_methods.pdf
Tremblay A-, Breton P. Position-space rescaling and hierarchical lattice models of disordered one-dimensional systems (invited). Journal of Applied Physics. 1984;55:2389-94.
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application/pdf iconJApplPhys_55_2389.pdf

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