AVS 66th International Symposium & Exhibition
    Materials and Processes for Quantum Information, Computing and Science Focus Topic Monday Sessions
       Session QS+EM+MN+NS-MoM

Invited Paper QS+EM+MN+NS-MoM3
History of Superconducting Qubit Coherence and the Current Challenges

Monday, October 21, 2019, 9:00 am, Room B231-232

Session: High Coherence Qubits for Quantum Computing
Presenter: Hanhee Paik, IBM T.J. Watson Research Center
Correspondent: Click to Email
Since the first demonstration of a few nanoseconds of coherent oscillations in 1999, a tremendous amount of effort has been put in to improve coherence of superconducting qubits. A modern day superconducting qubits show typically 100 microseconds of coherence times which allowed us to demonstrate a few simple quantum computing applications that led rapid growth of quantum computing industry. To build a full fault-tolerant universal quantum computing system, however, we still need a couple more orders of magnitude improvement in the superconducting qubit coherence, the solution to which, we believe, is in the qubit materials. In this talk, I will review the history of the superconducting qubit coherence research and what we learned about the materials for quantum computing at milli-kelvin temperatures, and I will discuss the current challenges of the coherence studies in the conjunction with the challenges in material science research.