Superconducting Qubits: Two-level Systems & Decoherence

Presentations

• Anomalous Behavior of High Quality Factor Planar Superconducting Resonators

  ORAL

  March 5, 2014, 8:00 AM – March 5, 2014, 8:12 AM

  Authors

  • Anthony Megrant

    • Univ of California - Santa Barbara
    • UC Santa Barbara

  • Zijun Chen

    • UC Santa Barbara

  • Ben Chiaro

    • UC Santa Barbara

  • Andrew Dunsworth

    • UC Santa Barbara

  • Chris Quintana

    • UC Santa Barbara

  • Brooks Campbell

    • UC Santa Barbara

  • Julian Kelly

    • UC Santa Barbara

  • Rami Barends

    • UC Santa Barbara

  • Yu Chen

    • UC Santa Barbara

  • Evan Jeffrey

    • UC Santa Barbara

  • Josh Mutus

    • UC Santa Barbara

  • Charles Neill

    • UC Santa Barbara

  • Peter O'Malley

    • UC Santa Barbara

  • Daniel Sank

    • UC Santa Barbara

  • Amit Vainsencher

    • UC Santa Barbara

  • Jim Wenner

    • UC Santa Barbara

  • Ted White

    • UC Santa Barbara

  • Jorg Bochmann

    • UC Santa Barbara

  • IoChun Hoi

    • UC Santa Barbara

  • Christopher Palmstrom

    • UC Santa Barbara

  • John Martinis

    • UC Santa Barbara

  • Andrew Cleland

    • UC Santa Barbara

  View abstract →

• Microscopic origin of dissipative two-level systems in Al$_2$O$_3$

  ORAL

  March 5, 2014, 8:12 AM – March 5, 2014, 8:24 AM

  Authors

  • Luke Gordon

    • Univ of California - Santa Barbara

  • Hazem A. Farsakh

    • Prince Sultan University, Saudi Arabia

  • Anderson Janotti

    • University of California, Santa Barbara

  • Chris G. Van de Walle

    • University of California, Santa Barbara

  View abstract →

• Individual two level fluctuators in the tunneling conductance of Al/AlO$_{x}$/Al Josephson junctions for superconducting qubits

  ORAL

  March 5, 2014, 8:24 AM – March 5, 2014, 8:36 AM

  Authors

  • Christopher Nugroho

    • University of Illinois at Urbana-Champaign

  • Vladimir Orlyanchik

    • University of Illinois at Urbana-Champaign

  • Dale Van Harlingen

    • University of Illinois at Urbana-Champaign
    • Univ of Illinois - Urbana
    • University of Illinos at Urbana Champaign
    • University of Illinois at Urbana Champaign

  View abstract →

• Cavity QED of individual two-level systems observed in insulating films

  ORAL

  March 5, 2014, 8:36 AM – March 5, 2014, 8:48 AM

  Authors

  • Bahman Sarabi

    • Laboratory for Physical Sciences

  • Aruna N. Ramanayaka

    • Laboratory of Physical Sciences, College Park, MD
    • Laboratory for Physical Sciences

  • Alexander L. Burin

    • Tulane University

  • Frederick C. Wellstood

    • University of Maryland - College Park

  • Kevin D. Osborn

    • Laboratory for Physical Sciences

  View abstract →

• Efficient characterization of spurious two-level systems in superconducting qubits under non-ideal conditions

  ORAL

  March 5, 2014, 8:48 AM – March 5, 2014, 9:00 AM

  Authors

  • Markku P.V. Stenberg

    • Saarland University

  • Yuval R. Sanders

    • Institute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo

  • Frank K. Wilhelm

    • Saarland University

  View abstract →

• Stimulated microwave photon transfer through dielectric two-level systems

  ORAL

  March 5, 2014, 9:00 AM – March 5, 2014, 9:12 AM

  Authors

  • Yaniv Rosen

    • Laboratory for Physical Sciences, College Park, MD

  • Moe Khalil

    • Laboratory for Physical Sciences, College Park, MD and University of Maryland, College Park, MD

  • Kevin Osborn

    • Laboratory for Physical Sciences, College Park, MD

  View abstract →

• Photon Correlations in a Waveguide Coupled to Multiple Two- and Three- Level Systems

  ORAL

  March 5, 2014, 9:12 AM – March 5, 2014, 9:24 AM

  Authors

  • Yao-Lung L. Fang

    • Duke University

  • Huaixiu Zheng

    • Duke University

  • Harold U. Baranger

    • Duke University

  View abstract →

• An efficient method for studying low-frequency two-state fluctuators

  ORAL

  March 5, 2014, 9:24 AM – March 5, 2014, 9:36 AM

  Authors

  • Fei Yan

    • Research Laboratory of Electronics, Massachusetts Institute of Technology

  • Simon Gustavsson

    • Research Laboratory of Electronics, Massachusetts Institute of Technology

  • Xiaoyue Jin

    • Research Laboratory of Electronics, Massachusetts Institute of Technology

  • Archana Kamal

    • Research Laboratory of Electronics, Massachusetts Institute of Technology

  • Terry Orlando

    • Research Laboratory of Electronics, Massachusetts Institute of Technology

  • William Oliver

    • Research Laboratory of Electronics, Massachusetts Institute of Technology; MIT Lincoln Laboratory

  View abstract →

• Optically Activated Two-Level Systems in a Thin-Film Superconducting Microwave Resonator

  ORAL

  March 5, 2014, 9:36 AM – March 5, 2014, 9:48 AM

  Authors

  • R.P. Budoyo

    • JQI and CNAM, Dept. of Physics, University of Maryland, College Park

  • J.B. Hertzberg

    • JQI, Dept. of Physics, University of Maryland, College Park

  • C.J. Ballard

    • JQI and CNAM, Dept. of Physics, University of Maryland, College Park

  • K.D. Voigt

    • JQI, Dept. of Physics, University of Maryland, College Park

  • J.R. Anderson

    • JQI and CNAM, Dept. of Physics, University of Maryland, College Park

  • C.J. Lobb

    • JQI and CNAM, Dept. of Physics, University of Maryland, College Park

  • F.C. Wellstood

    • JQI and CNAM, Dept. of Physics, University of Maryland, College Park

  View abstract →

• Discrete Two-Level Systems and Two-Level Fluctuators in a Superconducting Microwave Resonator

  ORAL

  March 5, 2014, 9:48 AM – March 5, 2014, 10:00 AM

  Authors

  • K.D. Voigt

    • UMD

  • Jared Hertzberg

    • UMD
    • Joint Quantum Institute, University of Maryland

  • Z. Kim

    • ADD South Korea

  • A. Choudhary

    • UMD

  • J.R. Anderson

    • Dept. of Physics, University of Maryland, College Park
    • JQI/UMD
    • University of Maryland, College Park

  • C.J. Lobb

    • JQI/UMD

  • F.C. Wellstood

    • JQI/UMD
    • University of Maryland, College Park

  View abstract →

• Etch Effects on Surface loss in High Quality Aluminum on Silicon Superconducting Coplanar Resonators

  ORAL

  March 5, 2014, 10:00 AM – March 5, 2014, 10:12 AM

  Authors

  • Andrew Dunsworth

    • Univ of California - Santa Barbara

  • Anthony Megrant

    • Univ of California - Santa Barbara
    • UC Santa Barbara

  • R. Barends

    • Univ of California - Santa Barbara
    • UC Santa Barbara

  • Yu Chen

    • Univ of California - Santa Barbara
    • UC - Santa Barbara

  • I.-C. Hoi

    • Univ of California - Santa Barbara
    • Department of Microtechnology and Nanoscience (MC2), Chalmers University of Technology, SE-412 96 Gothenburg, Sweden

  • Evan Jeffrey

    • Univ of California - Santa Barbara
    • UC Santa Barbara

  • Josh Mutus

    • Univ of California - Santa Barbara

  • Pedram Roushan

    • Univ of California - Santa Barbara
    • University of California, Santa Barbara

  • Brooks Campbell

    • Univ of California - Santa Barbara

  • Zijun Chen

    • Univ of California - Santa Barbara

  • B. Chiaro

    • Univ of California - Santa Barbara
    • UC Santa Barbara

  • J. Kelly

    • Univ of California - Santa Barbara
    • UC Santa Barbara

  • Charles Neill

    • Univ of California - Santa Barbara
    • UCSB

  • Peter O'Malley

    • Univ of California - Santa Barbara
    • University of California, Santa Barbara

  • Chris Quintana

    • UC Santa Barbara
    • Univ of California - Santa Barbara

  • Daniel Sank

    • Univ of California - Santa Barbara
    • UC Santa Barbara

  • Amit Vainsencher

    • UC Santa Barbara
    • Univ of California - Santa Barbara

  • Jim Wenner

    • Univ of California - Santa Barbara
    • University of California, Santa Barbara

  • Ted White

    • U.C. Santa Barbara
    • Univ of California - Santa Barbara

  • Andrew N. Cleland

    • UC Santa Barbara
    • Univ of California - Santa Barbara
    • UC Santa Barbara, USA

  • John Martinis

    • University of California, Santa Barbara
    • Univ of California - Santa Barbara
    • UC Santa Barbara
    • UC Santa Barbara, USA
    • Department of Physics, University of California, Santa Barbara, California 93106, USA

  View abstract →

• Lift-Off Processing and Superconducting Circuit Coherence

  ORAL

  March 5, 2014, 10:12 AM – March 5, 2014, 10:24 AM

  Authors

  • Chris Quintana

    • UC Santa Barbara
    • Univ of California - Santa Barbara

  • A. Megrant

    • UC Santa Barbara

  • A. Dunsworth

    • UC Santa Barbara

  • Zijun Chen

    • UC Santa Barbara

  • B. Chiaro

    • UC Santa Barbara

  • R. Barends

    • UC Santa Barbara

  • B. Campbell

    • UC Santa Barbara

  • Yu Chen

    • UC Santa Barbara

  • E. Jeffrey

    • UC Santa Barbara

  • J. Kelly

    • UC Santa Barbara

  • J.Y. Mutus

    • UC Santa Barbara

  • C. Neill

    • UC Santa Barbara

  • P.J.J. O'Malley

    • UC Santa Barbara

  • P. Roushan

    • UC Santa Barbara

  • D. Sank

    • UC Santa Barbara

  • J. Wenner

    • UC Santa Barbara

  • T.C. White

    • UC Santa Barbara

  • A.N. Cleland

    • UC Santa Barbara

  • John M. Martinis

    • UC Santa Barbara

  View abstract →

• Hydrogen-free amorphous silicon with no tunneling states

  ORAL

  March 5, 2014, 10:24 AM – March 5, 2014, 10:36 AM

  Authors

  • Xiao Liu

    • Naval Reseach Laboratory
    • Naval Research Laboratory

  • Daniel Queen

    • Naval Reseach Laboratory
    • NRC Postdoctoral Associate

  • Thomas Metcalf

    • Naval Research Laboratory

  • Julie Karel

    • Department of Physics, University of California, Berkeley
    • Max-Planck-Institut f\"ur Chemische Physik fester Stoffe, Dresden, Germany 01187

  • Frances Hellman

    • Physics Department, University of California, Berkeley
    • Department of Physics and Department of Materials Science and Engineering, University of California, Berkeley
    • University of California, Berkeley
    • Department of Physics, University of California, Berkeley

  View abstract →

• Noise study of insulating films within superconducting LC resonators

  ORAL

  March 5, 2014, 10:36 AM – March 5, 2014, 10:48 AM

  Authors

  • Aruna N. Ramanayaka

    • Laboratory of Physical Sciences, College Park, MD
    • Laboratory for Physical Sciences

  • B. Sarabi

    • Department of Physics, University of Maryland, College Park, MD

  • K.D. Osborn

    • Laboratory of Physical Sciences, College Park, MD

  View abstract →

• Overcoming charge noise decoherence by photon-assisted pair-breaking in a charge qubit

  ORAL

  March 5, 2014, 10:48 AM – March 5, 2014, 11:00 AM

  Authors

  • Sebastian de Graaf

    • Chalmers University of Technology, Department of Microtechnology and Nanoscience, Gothenburg, Sweden

  • Juha Lepp\"akangas

    • Chalmers University of Technology, Department of Microtechnology and Nanoscience, Gothenburg, Sweden

  • Astghik Adamyan

    • Chalmers University of Technology, Department of Microtechnology and Nanoscience, Gothenburg, Sweden

  • Andrey Danilov

    • Chalmers University of Technology, Department of Microtechnology and Nanoscience, Gothenburg, Sweden

  • Tobias Lindstr\"om

    • National Physics Laboratory, Teddington, United Kingdom

  • Mikael Fogelstr\"om

    • Chalmers University of Technology, Department of Microtechnology and Nanoscience, Gothenburg, Sweden

  • G\"oran Johansson

    • Chalmers University of Technology, Department of Microtechnology and Nanoscience, Gothenburg, Sweden

  • Sergey Kubatkin

    • Chalmers University of Technology, Department of Microtechnology and Nanoscience, Gothenburg, Sweden

  View abstract →