Journal Club Archive 2014

Wednesday, December 17 2014
J. A. Mlynek, A. A. Abdumalikov Jr, C. Eichler, A. Wallraff
Observation of Dicke Superradiance for Two Artificial Atoms in a Cavity with High Decay Rate,
Discussion leader: Marios.

Wednesday, December 10 2014
M. Veldhorst, C.H. Yang, J.C.C. Hwang, W. Huang, J.P. Dehollain, J.T. Muhonen, S. Simmons, A. Laucht, F.E. Hudson, K.M. Itoh, A. Morello, A.S. Dzurak
A Two Qubit Logic Gate in Silicon,
Discussion leader: Serwan.

Wednesday, December 3 2014
Ananda Roy, Zaki Leghtas, A. Douglas Stone, Michel Devoret, Mazyar Mirrahimi
Continuous Generation and Stabilization of Mesoscopic Field Superposition States in a Quantum Circuit,
Discussion leader: Myles.

Wednesday, November 26 2014
C. Janvier, L. Tosi, Ç. Ö. Girit, M. F. Goffman, H. Pothier, C. Urbina
Superconducting atomic contacts inductively coupled to a microwave resonator,
Discussion leader: Attila.

Wednesday, November 19 2014
Arjan F. van Loo, Arkady Fedorov, Kevin Lalumière, Barry C. Sanders, Alexandre Blais, Andreas Wallraff
Photon-Mediated Interactions Between Distant Artificial Atoms,
Science 342, 1494 (2013).
Discussion leader: Christian.

Wednesday, November 12 2014
I.-C. Hoi, A. F. Kockum, L. Tornberg, A. Pourkabirian, G. Johansson, P. Delsing, C. M. Wilson
Probing the quantum vacuum with an artificial atom in front of a mirror,
Discussion leader: Gijs.

Wednesday, November 5 2014
J. M. Hornibrook, J. I. Colless, I. D. Conway Lamb, S. J. Pauka, H. Lu, A. C. Gossard, J. D. Watson, G. C. Gardner, S. Fallahi, M. J. Manfra, D. J. Reilly
Cryogenic Control Architecture for Large-Scale Quantum Computing,
Discussion leader: Ale.

Wednesday, October 29 2014
A. D. Córcoles, Easwar Magesan, Srikanth J. Srinivasan, Andrew W. Cross, M. Steffen, Jay M. Gambetta, Jerry M. Chow
Detecting arbitrary quantum errors via stabilizer measurements on a sublattice of the surface code,
Discussion leader: Leo.

Wednesday, October 22 2014
John M. Martinis, Rami Barends & Alexander N. Korotkov
Calculation of Coupling Capacitance in Planar Electrodes,
Discussion leader: Nathan.

Wednesday, October 8 2014

Christian Kraglund Andersen & Klaus Mølmer
Circuit QED flip-flop memory with all-microwave switching,
Discussion leader: Yaroslav.

Wednesday, October 1 2014
S. Putz, D. O. Krimer, R. Amsüss, A. Valookaran, T. Nöbauer, J. Schmiedmayer, S. Rotter & J. Majer
Protecting a spin ensemble against decoherence in the strong-coupling regime of cavity QED,
Nat. Phys. 10, 720 (2014).
Discussion leader: Stefano.

Wednesday, September 24 2014
V. Schmitt, X. Zhou, K. Juliusson, A. Blais, P. Bertet, D. Vion, D. Esteve
Multiplexed Readout of Transmon Qubits with Josephson Bifurcation Amplifiers,
Discussion leader: Myles.

Wednesday, September 17 2014
T Rybarczyk, S Gerlich, B Peaudecerf, M Penasa, B Julsgaard, K Moelmer, S Gleyzes, M Brune, J-M Raimond, S Haroche, I Dotsenko
Past quantum state analysis of the photon number evolution in a cavity,
Discussion leader: Diego.

Wednesday, September 10 2014
D. Tan, S. Weber, I. Siddiqi, K. Mølmer, K. W. Murch
Prediction and retrodiction for a continuously monitored superconducting qubit,
Discussion leader: Leo.

Wednesday, September 3 2014
Saeed Khan, R. Vijay, I. Siddiqi, Aashish A. Clerk
Large gain quantum-limited qubit measurement using a two-mode nonlinear cavity,
Discussion leader: Christian.

Wednesday, August 27 2014
K. Inomata, K. Koshino, Z. R. Lin, W. D. Oliver, J. S. Tsai, Y. Nakamura, T. Yamamoto
Microwave Down-Conversion with an Impedance-Matched Λ System in Driven Circuit QED,
Phys. Rev. Lett. 113, 063604 (2014).
Discussion leader: Stefano.

Wednesday, August 13 2014
R. P. Erickson, M. R. Vissers, M. Sandberg, S. R. Jefferts, D. P. Pappas
Ultra-Broadband Microwave Frequency-Comb Generation in Superconducting Resonators,
Discussion leader: Ale.

Wednesday, August 6 2014
Keyu Xia, Michael R. Vanner and Jason Twamley
An opto-magneto-mechanical quantum interface between distant superconducting qubits,
Phys. Rev. X 4, 021019 (2014).
Discussion leader: Yaroslav.

Wednesday, July 30 2014
Giovanni Viola and David P. DiVincenzo
Hall Effect Gyrators and Circulators,
Phys. Rev. X 4, 021019 (2014).
Discussion leader: Attila.

Wednesday, July 23 2014
Andrey V. Rodionov, Andrzej Veitia, R. Barends, J. Kelly, Daniel Sank, J. Wenner, John M. Martinis, Robert L. Kosut, Alexander N. Korotkov
Compressed sensing quantum process tomography for superconducting quantum gates,
Discussion leader: Nathan.

Wednesday, July 16 2014
Chen Wang, Yvonne Y. Gao, Ioan M. Pop, Uri Vool, Chris Axline, Teresa Brecht, Reinier W. Heeres, Luigi Frunzio, Michel H. Devoret, Gianluigi Catelani, Leonid I. Glazman, Robert J. Schoelkopf
Measurement and Control of Quasiparticle Dynamics in a Superconducting Qubit,
Discussion leader: Diego.

Wednesday, July 9 2014
I. Nsanzineza, B.L.T. Plourde
Trapping a single vortex and reducing quasiparticles in a superconducting resonator,
Discussion leader: Leo.

Wednesday, July 2 2014
R. Barends, J. Kelly, A. Veitia, A. Megrant, A. G. Fowler, B. Campbell, Y. Chen, Z. Chen, B. Chiaro, A. Dunsworth, I.-C. Hoi, E. Jeffrey, C. Neill, P. J. J. O’Malley, J. Mutus, C. Quintana, P. Roushan, D. Sank, J. Wenner, T. C. White, A. N. Korotkov, A. N. Cleland, John M. Martinis
Rolling quantum dice with a superconducting qubit,
Discussion leader: Christian.

Wednesday, June 25 2014
Uri Vool, Ioan M. Pop, Katrina Sliwa, Baleegh Abdo, Chen Wang, Teresa Brecht, Yvonne Y. Gao, Shyam Shankar, Michael Hatridge, Gianluigi Catelani, Mazyar Mirrahimi, Luigi Frunzio, Robert J. Schoelkopf, Leonid I. Glazman, Michel H. Devoret
Non-Poissonian Quantum Jumps of a Fluxonium Qubit due to Quasiparticle Excitations,
Discussion leader: Gijs.

Wednesday, June 18 2014
A. Narla, K.M. Sliwa, M. Hatridge, S. Shankar, L. Frunzio, R. J. Schoelkopf, M.H. Devoret
Wireless Josephson Amplifier,
Discussion leader: Alessandro.

Wednesday, June 11 2014
Jani Tuorila, Matti Silveri, Mika Sillanpää, Erkki Thuneberg, Yuriy Makhlin, Pertti Hakonen
Charge qubit driven via the Josephson nonlinearity,
Discussion leader: Yaroslav.

Wednesday, June 4 2014
T. Lanting, A. J. Przybysz, A. Yu. Smirnov, F. M. Spedalieri, M. H. Amin, A. J. Berkley, R. Harris, F. Altomare, S. Boixo, P. Bunyk, N. Dickson, C. Enderud, J. P. Hilton, E. Hoskinson, M. W. Johnson, E. Ladizinsky, N. Ladizinsky, R. Neufeld, T. Oh, I. Perminov, C. Rich, M. C. Thom, E. Tolkacheva, S. Uchaikin, A. B. Wilson, and G. Rose
Entanglement in a Quantum Annealing Processor,
PRX 4, 021041 (2014).
Discussion leader: Stefano.

Wednesday, May 28 2014
C. Eichler, Y. Salathe, J. Mlynek, S. Schmidt, A. Wallraff
Quantum limited amplification and entanglement in coupled nonlinear resonators,
Discussion leader: Nathan.

Wednesday, May 7 2014 and Wednesday, May 14 2014
Ioan M. Pop, Kurtis Geerlings, Gianluigi Catelani, Robert J. Schoelkopf, Leonid I. Glazman & Michel H. Devoret
Coherent suppression of electromagnetic dissipation due to superconducting quasiparticles,
Nature 508, 369 (2014).
Discussion leader: Diego.

Wednesday, Apr. 30 2014
Yu Chen, P. Roushan, D. Sank, C. Neill, Erik Lucero, Matteo Mariantoni, R. Barends, B. Chiaro, J. Kelly, A. Megrant, J. Y. Mutus, P. J. J. O’Malley, A. Vainsencher, J. Wenner, T. C. White, Yi Yin, A. N. Cleland, John M. Martinis
Simulating weak localization using superconducting quantum circuits,
Discussion leader: Leo.

Wednesday, Apr. 23 2014
L. Bretheau, Ç. Girit, H. Pothier, D. Esteve, C. Urbina
Exciting Andreev pairs in a superconducting atomic contact ,
Nature 499, 312 (2013).
Discussion leader: Attila.

Wednesday, Apr. 16 2014
D. McKay, R. Naik, P. Reinhold, L. Bishop, D. Schuster
A Multi-Resonator Network for Superconducting Circuits ,
Discussion leader: Gijs.

Wednesday, Apr. 9 2014
D. Nigg, M. Mueller, E. Martinez, P. Schindler, M. Hennrich, T. Monz, M. Martin-Delgado, R. Blatt
Experimental Quantum Computations on a Topologically Encoded Qubit,
Discussion leader: Christian.

Wednesday, Apr. 2 2014
X. Cai, J. Wang, M. Strain, B. Johnson-Morris, J. Zhu, M. Sorel, J. O’Brien, M. Thompson, S. Yu
Integrated Compact Optical Vortex Beam Emitters,
Science 338, 363 (2012).
Discussion leader: Alessandro.

Wednesday, Mar. 19 2014
Y. Chen, C. Neill, P. Roushan, N. Leung, M. Fang, R. Barends, J. Kelly, B. Campbell, Z. Chen, B. Chiaro, A. Dunsworth, E. Jeffrey, A. Megrant, J. Mutus, P. O’Malley, C. Quintana, D. Sank, A. Vainsencher, J. Wenner, T. White, M. Geller, A. Cleland, J. Martinis
Qubit architecture with high coherence and fast tunable coupling,
Discussion leader: Stefano.

Tuesday, Feb. 19 2014
D. Wecker, B. Bauer, B. Clark, M. Hastings, M. Troyer
Can quantum chemistry be performed on a small quantum computer?,
Discussion leader: Leo.

Tuesday, Feb. 9 2014
A. Signoles, A. Facon, D. Grosso, I. Dotsenko, S. Haroche, J.l Raimond, M. Brune, S. Gleyzes
Confined quantum Zeno dynamics of a watched atomic arrow,
Discussion leader: Diego.

Tuesday, Feb. 4 2014
C. Grezes, B. Julsgaard, Y. Kubo, M. Stern, T. Umeda, J. Isoya, H. Sumiya, H. Abe, S. Onoda, T. Ohshima, V. Jacques, J. Esteve, D. Vion, D. Esteve, K. Mølmer, P. Bertet
Multi-mode storage and retrieval of microwave fields in a spin ensemble,
Discussion leader: Gijs.

Tuesday, Jan. 29 2014
D.Sank, E. Jeffrey, J. Mutus, T. White, J. Kelly, R. Barends, Y. Chen, Z. Chen, B. Chiaro, A. Dunsworth, A. Megrant, P.J.J. O’Malley, C. Neill, P. Roushan, A. Vainsencher, J. Wenner, A. Cleland, J. Martinis
Fast Scalable State Measurement with Superconducting Qubits,
Discussion leader: Christian.

Tuesday, Jan. 15 2014
M. Mirrahimi, Z. Leghtas, V. Albert, S. Touzard, R. Schoelkopf, L. Jiang, M. Devoret
Dynamically protected cat-qubits: a new paradigm for universal quantum computation,
Discussion leader: Sal.

Tuesday, Jan. 8 2014
M. Bell, J. Paramanandam, L. Ioffe, M. Gershenson
Protected Josephson Rhombi Chains,
Discussion leader: Sal.