Hanhee Paik  Hanhee Paik photo       

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Research Staff Member, Experimental Quantum Computing
Thomas J. Watson Research Center, Yorktown Heights, NY USA
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Hanhee Paik received a Ph.D. in Physics from University of Maryland, College Park in August 2007
under the supervision of Prof. Frederick Wellstood. She was a post-doctoral fellow at LPS from 2007
to 2009, and moved to Yale University to work with Profs. Robert Schoelkopf, Michel Devoret and
Steve Girvin. Through her research career, she has been focusing on understanding and improving
coherence mechanisms of superconducting qubits, and developing novel superconducting multi-
qubit architectures. Her works include improving and understanding coherence of a newly-designed
superconducting phase qubit, which yielded, by removing dielectric layers on the chip, up to 5 times
longer coherence times than the prior state-of-art, and developing a low-loss cryogenic SiN dielectric
fi lm for quantum device applications, which has an order of magnitude higher quality factor than
existing amorphous dielectric materials. She pioneered the three-dimensional (3D) superconducting circuit QED (cQED) architecture along with a black-box circuit quantization tool for superconducting qubits.
She also developed a new entangling gate scheme for 3D superconducting qubit system. Her work on
the 3D cQED architecture has greatly impacted the quantum computing community by proving the
true coherent nature of superconducting qubits, and helped the community to push the boundary
of the superconducting qubit performance. The 3D cQED work also has helped us to understand
coherence mechanisms in qubits, and has played an important role to advance the technologies for quantum measurement and feedback, and superconducting quantum optics.