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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.
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Mon, 06/03/2013 - 12:30

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

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

Frank Verstraete , Université de Vienne
- 12:30
- D3-2040
- To be announced
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Tue, 06/11/2013 - 00:00

Wolfgang Belzig, l'Université de Constance, Allemagne
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Journal Article

Slater GW, Tremblay A-MS. 1984. Tunable quantum hypersound generator in the gigahertz to terahertz range. Physical Review B. 29:2289-2292.

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PhysRevB.29.2289.pdf

Biswas A, Fournier P, Smolyaninova VN, Balci H, Higgins JS, Budhani RC, Greene. RL. 2002. Tunneling spectroscopy of the electron-doped cuprate superconductor Pr2-xCexCuO4. Intern. J. of Mod. Phys.B. 16:3175.

Creuzet F, Bourbonnais C, Creuzet G, Jerome D, Schweitzer D, Keller HJ. 1987. Two superconducting phases in the organic conductor: β-(BEDT-TTF)2I3. Synthetic Metals. 19:157-162.

Caron LG, Bourbonnais C. 1984. Two-cutoff renormalization and quantum versus classical aspects for the one-dimensional electron-phonon system. Physical Review B. 29:4230-4241.

Ait-Ouali A, Jandl S. 1994. Two-dimensional indirect excitons in the layer-type trichalcogenide ZrS3. Physical Review B. 49:1813-1817.

Wzietek P, Lefebvre S, Mayaffre H, Brown S, Bourbonnais C, Jérome D, Mézière C, Batail P. 2000. Two-dimensional organic superconductors studied by NMR under pressure. Hyperfine Interactions. 128:183-191.

Mir Y, Van Lier JE, Allard J-F, Morris D, Houde D. 2009. Two-photon absorption cross section of excited phthalocyanines by a femtosecond Ti-sapphire laser. Photochemical and Photobiological Sciences. 8:391-395.

Brunner R, Shin Y-S, Obata T, Pioro-Ladrière M, Kubo T, Yoshida K, Taniyama T, Tokura Y, Tarucha S. 2011. Two-Qubit Gate of Combined Single-Spin Rotation and Interdot Spin Exchange in a Double Quantum Dot. Phys. Rev. Lett.. 107:146801.

Filipp S, Maurer P, Leek PJ, Baur M, Bianchetti R, Fink JM, Göppl M, Steffen L, Gambetta JM, Blais A et al.. 2009. Two-qubit state tomography using a joint dispersive readout. Physical Review Letters. 102

Morris D, Houde D, Deveaud B, Regreny A. 1994. Ultrafast dynamics of intersubband relaxation in GaAs quantum wells: hot carrier and phonon populations effects. Superlattices and Microstructures. 15:309.

Barros MRX, Becker PC, Morris D, Deveaud B, Regreny A, Beisser F. 1993. Ultrafast optical evidence for resonant electron capture in quantum wells. Physical Review B. 47:10951-10954.

Deveaud B, Morris D, Regreny A, Planet R, Gerard JM, Barros MRX, Becker PC. 1994. Ultrafast relaxation of photoexcited carriers in quantum wells and superlattices. Semiconductor Science and Technology. 9:722-726.

Fertey P, Poirier M, Castonguay M, Jegoudez J, Revcolevschi A. 1998. Ultrasonic evidence of a spin-Peierls transition in α'-NaV2O5. Physical Review B. 57:13698-13701.

Poirier M, Castonguay M, Revcolevschi A, Dhalenne G. 2002. Ultrasonic investigation of the magnetic ordering in the quasi-one-dimensional S=1/2 antiferromagnet BaCu2Si2O7. Physical Review B. 66:544021-544025.

Lussier B, Poirier M. 1993. Ultrasonic investigation of the magnetic phase diagram of the quasi-one-dimensional ferromagnet CsNiF3. Physical Review B. 48:6199-6205.

Poirier M, Caillé A, Plumer ML. 1990. Ultrasonic study of crossover behavior near the chiral multicritical point of CsNiCl3. Physical Review B. 41:4869-4872.

Poirier M, Castonguay M, Caillé A, Plumer ML, Gaulin BD. 1990. Ultrasonic study of quasi-one-dimensional magnetic system CsMnBr3. Physica B: Physics of Condensed Matter. 165-166:171-172.

Poirier M, Castonguay M, Revcolevschi A, Dhalenne G. 1995. Ultrasonic study of the magnetic phase diagram of the spin-Peierls system CuGeO3. Physical Review B. 51:6147-6150.

Trudeau Y, Plumer ML, Poirier M, Takeuchi J. 1995. Ultrasonic study of the magnetic phase diagrams of CsNi0.98M0.02Cl3 (M=Co, Fe, Mg). Physical Review B. 52:378-383.

Quirion G, Poirier M, Cheeke JDN. 1987. ULTRASONIC STUDY OF THE MAGNETOCONDUCTIVITY OF p-InSb AT LOW TEMPERATURES.. Journal of physics. C. Solid state physics. 20:917-931.

Trudeau Y, Poirier M, Caillé A. 1992. Ultrasonic study of the quasi-one-dimensional spin fluctuations in CsNiCl3 in the presence of a magnetic field. Physical Review B. 46:169-174.

Quirion G, Razavi FS, Dumoulin B, Poirier M, Revcolevschi A, Dhalenne G. 1998. Ultrasonic study of the spin-Peierls system CuGeO3 under pressure. Physical Review B. 58:882-886.

Frikach K, Fertey P, Poirier M, Truong K. 1999. Ultrasonic study of the κ-(BEDT-TTF)2Cu[N(CN)2]Br organic superconductor. Synthetic Metals. 103:2081-2082.

Cheeke JDN, Morisseau P, Poirier M. 1982. Ultrasonic study of thin superfluid helium flims. Physics Letters A. 88:359-362.

Lin SW, Ran QZ, Adenwalla S, Zhao Z, Ketterson JB, Taillefer L, Hinks DG, Levy M, Sarma BK. 1991. Ultrasonic velocity determination of the phase diagram of UPt3. Physica B: Physics of Condensed Matter. 169:493-494.

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