The Arm Qubit for Faster, Higher Fidelity Readout and Gates
Name
kline-jbkline-sm-eecs-2025-thesis.pdf
Description
Thesis PDF
Size
1.39 MB
Format
Adobe PDF
Checksum (MD5)
c86f7b979d9f59094843cdd0a4438b25
Author(s)
Kline, Jeremy B.
Advisor(s)
O’Brien, Kevin P.
Date Issued
September 2025
Publisher
Massachusetts Institute of Technology
Abstract
Currently, superconducting qubit processors are bottlenecked by errors during two-qubit gates, readout, and idle time. All three error contributions could be reduced if we improved the speed of operations (without introducing additional leakage errors) compared to the qubit lifetime. Readout and two-qubit gates are multimode interactions and therefore are limited by the coupling strength between the modes. In this thesis, we introduce a two-mode superconducting qubit which uses one mode to facilitate strong coupling to other modes of the quantum processor and one mode to store data with high coherence. Simulations show that this architecture could enable order-of-magnitude reductions in error during readout and two-qubit gates.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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