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Decoherence Mechanisms in Superconducting Qubits II (DiSQ2)

April 21, 2016 to April 22, 2016

Benjamin Palmer (Laboratory for Physical Sciences)

Frederick Wellstood (Joint Quantum Institute & CNAM, University of Maryland)

Organizing Institutions

Laboratory for Physical Sciences (LPS)

Joint Quantum Institute


University of Maryland

Sponsoring Institutions
College Park Marriott Hotel & Conference Center
3501 University Blvd
East Hyattsville, MD 20783
United States

Over the last decade there has been significant advances in improving the coherence times of superconducting qubits. The aim of this workshop is to ensure that these advances continue for another decade by bringing together experts from the superconducting qubit community and the microwave kinetic inductance detector community (MKID) to speak on their latest results, freely exchange ideas, make suggestions and ask penetrating questions.

Registration: Registration for DiSQ2 workshop

Lodging: Book your group rate for Decoherence Mechanisms in Superconducting Qubits II (DiSQ2) 
Central Reservations Phone Number and Room Block Information:
Phone: 1-800-228-9290
Ask for Decoherence Mechanisms Conference
Room Block Dates: April 19-23, 2016
Room Rate: $189.00 per night plus applicable tax
Room Block Code: DQSDQSA
Must reserve room no later than March 31, 2016

UPDATE: Slides of several talks from the workshop are now available. Please click below to download them.

April 21, 2016
Time Speaker Name Title
8:30 AM Continental Breakfast
9:00 AM Ben Palmer & Fred Wellstood
9:15 AM Steve Girvin
Yale University
Elementary Introduction to the Basics of Dissipation in Superconducting Circuit QED.
10:00 AM Refreshment Break
10:30 AM Jiansong Gao
NIST, Boulder
High-Q and low noise superconducting resonators
11:05 AM John Martinis
UC, Santa Barbara & Google
Scalable qubits with high fidelity
11:50 AM David Pappas
NIST, Boulder
TLS losses in junctions and at interfaces
12:30 PM Catered Buffet Lunch
2:00 PM Pieter de Visser
Delft University of Technology/SRON
Non-equilibrium superconductivity in microwave resonators
2:35 PM Jen-Hao Yeh
Laboratory for Physical Sciences
Dephasing of Transmon Qubits from Non-equilibrium Cavity Photons
3:10 PM Refreshment Break
3:40 PM Will Oliver
MIT Lincoln Lab. & MIT Physics Dept.
Noise spectroscopy of the capacitively shunted flux qubit
4:25 PM Robert McDermott
University of Wisconsin
Origin and Suppression of 1/f Magnetic Flux Noise
5:00 PM to 5:30 PM Review of results from day 1
April 22, 2016
Time Speaker Name Title
8:30 AM Continental Breakfast
9:00 AM Ben Palmer & Fred Wellstood
9:10 AM Per Delsing
Chalmers University of Technology, Microtechnology and nanoscience
Charge fluctuators, their temperature and their response to sudden electrical fields
9:55 AM Juergen Lisenfeld
Karlsruhe Institute of Technology
Exploring parasitic Material Defects with superconducting Qubits
10:30 AM Refreshment Break
11:00 AM Chen Wang
Yale University
Surface Dielectric and Quasiparticle Loss in Transmon Qubits
11:45 AM Kevin Osborn
Laboratory for Physical Sciences
Tunneling Atoms: cQED defect analysis and using their random excitation energies to produce lasing
12:20 PM Catered Buffet Lunch
1:45 PM Matthias Steffen
Decoherence in Superconducting Qubits
2:20 PM Refreshment Break
2:50 PM Landry Bretheau
MIT,Former affiliation CEA, Saclay
The Andreev Qubit
3:35 PM Karl Petersson
Niels Bohr Institute, University of Copenhagen
Semiconductors for Superconducting Qubits
4:20 PM to 4:30 PM Final Comments