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Tue, 05/21/2013 - 12:30

Gabriel Poulin-Lamarre
- 12:30
- D3-2040
- To be announced
- Voir Google Calendar

Mon, 05/27/2013 - 12:30

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.
- Voir Google Calendar

Mon, 06/03/2013 - 12:30

Bhaskar Roy Bardhan, Department of Physics and Astronomy, Louisiana State University
- 12:30
- D3-2040
- To be annonced
- Voir Google Calendar

Wed, 06/05/2013 - 10:45

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

Frank Verstraete , Université de Vienne
- 12:30
- D3-2040
- To be announced
- Voir Google Calendar

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Gordeev SN, Zhukov AA, De Groot PAJ, Jansen AGM, Gagnon R, Taillefer L. 2000. Oscillatory melting temperature of the vortex smectic phase in layered superconductors. Physical Review Letters. 85:4594-4597.

Orozco A, Ogale SB, Li YH, Fournier P, Li E, Asano H, Smolyaninova V, Greene RL, Sharma RP, Ramesh R et al.. 1999. Oscillatory exchange coupling and giant positive magnetoresistance in TiN/Fe3O4 superlattices. Physical Review Letters. 83:1680.

Gordeev SN, Rassau AP, De Groot PAJ, Gagnon R, Taillefer L. 1998. Oscillatory dynamics of the driven vortex solid in YBa2Cu3O7-δ single crystals. Physical Review B. 58:527-537.

Perret N, Morris D, Franchomme-Fossé L, Côté R, Fafard S, Aimez V, Beauvais J. 2000. Origin of the inhomogenous broadening and alloy intermixing in InAs/GaAs self-assembled quantum dots. Phys. Rev. B. 62:5092–5099.

Jenkins GS, Schmadel DC, Bach PL, Greene RL, Béchamp-Laganière X, Roberge G, Fournier P, Kontani H, Drew HD. 2010. Origin of the anomalous Hall effect in the overdoped $n$ -type superconductor $ Pr2-x Cex Cuo4 $ : Current-vertex corrections due to antiferromagnetic fluctuations. Physical Review B. 81:024508.

Dufour P, Jandl S, Banville M, Bruyere JC. 1992. Origin of the 0.5 eV infrared conductivity peak in YBa2Cu3O7-x. Ferroelectrics. 128:161-165.

Long AR, Pioro-Ladrière M, Davies JH, Sachrajda AS, Gaudreau L, Zawadzki P, Lapointe J, Gupta J, Wasilewski Z, Studenikin SA. 2006. The origin of switching noise in GaAs/AlGaAs lateral gated devices. Physica E: Low-Dimensional Systems and Nanostructures. 34:553-556.

Pioro-Ladrière M, Davies JH, Long AR, Sachrajda AS, Gaudreau L, Zawadzki P, Lapointe J, Gupta J, Wasilewski Z, Studenikin S. 2005. Origin of switching noise in GaAs AlxGa1-xAs lateral gated devices. Physical Review B. 72:1-8.

Smith MF, Paglione J, Walker MB, Taillefer L. 2005. Origin of anomalous low-temperature downturns in the thermal conductivity of cuprates. Physical Review B. 71:014506-1-014506-8.

Gordeev SN, De Groot PAJ, Oussena M, Langan RM, Rassau AP, Gagnon R, Taillefer L. 1997. Organisation of vortex motion in detwinned YBa2Cu3O7-δ single crystals. Physica C: Superconductivity and its Applications. 282:2033-2034.

Bourbonnais C. 1997. Organic superconductors: Reduced dimensionality and correlation effects. Synthetic Metals. 84:19-24.

Côté R, Lambert J, Barlas Y, MacDonald AH. 2010. Orbital order in bilayer graphene at filling factor nu=-1. Phys. Rev. B. 82:035445.

Côté R, Luo W, Petrov B, Barlas Y, MacDonald AH. 2010. Orbital and interlayer skyrmion crystals in bilayer graphene. Phys. Rev. B. 82:245307.

Poulin D. 2006. Optimal and Efficient Decoding of Concatenated Quantum Block Codes. Physical Review A. 74:052333. Abstract

Mehta V, Guillot-Noël O, Gourier D, Ichalalène Z, Castonguay M, Jandl S. 2000. Optical Zeeman effect measurements on isolated and ferromagnetically coupled Nd3+ ions in weakly doped YVO4 crystals: Evidence for lack of crystal field perturbations in ion pair interactions. Journal of Physics Condensed Matter. 12:7149-7160.

Barba D, Jandl S, Martin AA, Lin CT, Cardona M, Wolf T. 2001. Optical study of Re1+xBa2-xCu3O6 (RE = Nd, Sm) and YBa2Cu3O6 in the mid infrared range. European Physical Journal B. 22:277-281.

Martin AA, Cardona M, Jandl S, Nekvasil V, Wolf T. 2000. Optical study of crystal-field excitation in (R)Ba2Cu3O7-δ single crystals. Physica Status Solidi (B) Basic Research. 220:475-482.

Perluzzo G, Jandl S, Girard PE. 1980. OPTICAL SPECTRA OF ZrS//3.. Canadian journal of physics. 58:143-145.

Denoyer A, Jandl S, Viana B, Guillot-Noël O, Goldner P, Pelenc D, Thibault F. 2007. Optical properties of Yb-doped Y2SiO5 thin films. Optical Materials. 30:416-422.

Carlone C, Jandl S, Shanks HR. 1981. OPTICAL PHONONS AND CRYSTALLINE SYMMETRY OF InSe.. Physica Status Solidi (B) Basic Research. 103:123-130.

Li G, Musfeldt JL, Wang YJ, Jandl S, Poirier M, Revcolevschi A, Dhalenne G. 1996. Optical observation of the interplay between magnetic and elastic energy in a spin-Peierls system. Physical Review B. 54:R15633-R15636.

Zaâboub Z, Ilahi B, Sfaxi L, Maaref H, Salem B, Aimez V, Morris D. 2008. Optical investigation of phosphorous-ion-implantation induced InAs/GaAs quantum dots’ intermixing. Physics Letters, Section A: General, Atomic and Solid State Physics. 372:4714-4717.

Homes CC, Lobo RPSM, Fournier P, Zimmers A, Greene RL. 2006. Optical determination of the superconducting energy gap in electron-doped Pr[sub 1.85]Ce[sub 0.15]CuO[sub 4]. Physical Review B. 74:214515.

Martel J-F, Jandl S, Lejus AM, Viana B, Vivien D. 1998. Optical crystal field study of Sm2O3 (C- and B-type). Journal of Alloys and Compounds. 275-277:353-355.

Puchkov AV, Fournier P, Timusk T, Kolesnikov NN. 1996. Optical Conductivity of High Tc Superconductors : from under- to overdoped. Physical Review Letters. 77:1853-1856.

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