Paper
Investigating Surface Loss Effects in Superconducting Transmon Qubits
Publication
Volume Number:
27
Issue Number:
1
Publication Date:
Publication Date
January 2017
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Abstract
Superconducting qubits are sensitive to a variety of loss mechanisms including dielectric loss from interfaces. By changing the physical footprint of the qubit, it is possible to modulate sensitivity to surface loss. Here, we show a systematic study of planar superconducting transmons of differing physical footprints to optimize the qubit design for maximum coherence. We find that qubits with small footprints are limited by surface loss and that qubits with large footprints are limited by other loss mechanisms, which are currently not understood.
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IEEE Region
Region 01 (Northeastern U.S.)
IEEE Region
Region 01 (Northeastern U.S.)
IEEE Region
Region 01 (Northeastern U.S.)
Affiliation
IBM TJ Watson Research Center
IEEE Region
Region 01 (Northeastern U.S.)
Affiliation
IBM TJ Watson Research Center
IEEE Region
Region 01 (Northeastern U.S.)