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Prochains séminaires

mar, 05/21/2013 - 12:30

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

lun, 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

lun, 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

mer, 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

lun, 06/10/2013 - 12:30

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

Publications

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Gordeev SN, De Groot PAJ, Oussena M, Volkozub AV, Langan RM, Rassau AP, Gagnon R, Taillefer L. 1997. Current-induced resistivity hysteresis in detwinned YBa2Cu3O7-δ single crystals. Physica C: Superconductivity and its Applications. 282:2031-2032.

Gordeev SN, De Groot PAJ, Oussena M, Volkozub AV, Pinfold S, Langan R, Gagnon R, Taillefer L. 1997. Current-induced organization of vortex motion in type-II superconductors. Nature. 385:324-325.

Gordeev SN, Rassau AP, Zhukov AA, De Groot PAJ, Jansen AGM, Gagnon R, Taillefer L. 2000. Anomalous in-plane magneto-resistance of low-oxygenation YBa2Cu3Oy. Physica B: Condensed Matter. 284:II/.

Gordeev SN, Rassau AP, Langan RM, De Groot PAJ, Geshkenbein VB, Gagnon R, Taillefer L. 1999. Resistivity of clean YBa2Cu3O7-δ in the pinned-liquid state. Physical Review B. 60:10477-10483.

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.

Gordeev SN, Rassaif AP, Zhukov AA, De Groot PAJ, Jansen AGM, Gagnon R, Taillefer L. 2000. Anomalous in-plane magneto-resistance of low-oxygenation YBa2Cu2Oy. Physica B: Condensed Matter. 284-288:642-643.

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.

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.

Granger G, Gaudreau L, Kam A, Pioro-Ladrière M, Studenikin SA, Wasilewski ZR, Zawadzki P, Sachrajda AS. 2010. Three-dimensional transport diagram of a triple quantum dot. Physical Review B. 82

Grant P, Py C, Mößner C, Blais A, Tran H, Gao M. 2000. Electron field emission from diamond-like carbon, a correlation with surface modifications. Journal of Applied Physics. 87:1356-1360.

Greiter M, Lonzarich GG, Taillefer L. 1992. Effect of uniaxial stress on the onset of superconductivity in UPt3. Physics Letters A. 169:199-204.

Grenier P, Houde D, Jandl S, Boatner LA. 1993. Soft-mode studies in KTa0.93Nb0.07O3 with use of the time-resolved third-order optical susceptibility 3. Physical Review B. 47:1-4.

Grenier P, Bernier G, Jandl S, Salce B, Boatner LA. 1989. Fluorescence and ferroelectric microregions in KTaO3. Journal of Physics: Condensed Matter. 1:2515-2520.

Grenier P, Houde D, Jandl S, Boatner LA. 1994. Measurement of the soft polariton in KTa0.93Nb0.07O3 by time-resolved four-wave mixing. Physical Review B. 50:16295-16308.

Guay B, Caron LG, Bourbonnais C. 1989. 1D Kondo Lattice with coulomb interaction: Application to Cu(Pc)I. Synthetic Metals. 29:557-562.

Guay B, Bourbonnais C. 1999. Interchain pairing in quasi-one-dimensional conductors. Synthetic Metals. 103:2180-2182.

Guillot-Noël O, Menta V, Viana B, Gourier D, Boukhris M, Jandl S. 2000. Evidence of ferromagnetically coupled Nd3+ ion pairs in weakly doped Nd:LiYF4 and Nd:YVO4 crystals as revealed by high-resolution optical and EPR spectroscopies. Physical Review B. 61:15338-15346.

Guillot-Noël O, Viana B, Bellamy B, Gourier D, Zogo-Mboulou GB, Jandl S. 2000. Spectroscopic evidence of inhomogeneous distribution of Nd3+ in YVO4, YPO4 and YAsO4 crystals. Optical Materials. 13:427-437.

Guyot H, Al Khoury E, Marcus J, Schlenker C, Banville M, Jandl S. 1991. Infrared reflectivity studies of quasi-two dimensional molybdenum oxides Mo4O11. Solid State Communications. 79:307-311.

Gü{\c c}lü AD, Rejeb C, Maciejko R, Morris D, Champagne A. 1999. Photoluminescence study of carrier dynamics and recombination in a strained InGaAsP/InP multiple-quantum-well structure. Journal of Applied Physics. 86:3391-3397.

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