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Joint IQIM/AWS Seminar Series

Wednesday, April 26, 2023
11:00am to 12:00pm
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Beckman Institute Auditorium
Suppressing quantum errors by scaling a surface code logical qubit
Michael Newman, Google Quantum AI,
Kevin Satzinger, Google Quantum AI,

Abstract: Quantum error correction offers a path to algorithmically-relevant error rates by encoding logical qubits within many physical qubits, where increasing the number of physical qubits enhances protection against physical errors. However, introducing more qubits also increases the number of error sources, so the density of errors must be sufficiently low in order for logical performance to improve with increasing code size. In this talk, we report the measurement of logical qubit performance on distance-3 and distance-5 surface codes on a Sycamore superconducting processor, and demonstrate that our code has sufficient performance to overcome the additional errors from increasing qubit number.

***Please note different locations for the April 26 Seminar. The talk will be held in the Beckman Institute Auditorium, but lunch will be provided on the lawn outside Bridge.

Lunch will be provided, following the talk, on the lawn north of the Bridge Arcade

Attendees joining in person must demonstrate that they comply with Caltech's vaccination requirements (present Caltech ID or AWS ID or vaccination and booster confirmation).

For more information, please contact Marcia Brown by phone at 626-395-4013 or by email at [email protected].