Record quantum computation result published in npj: Quantum Information

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The graduate thesis work of Brian Rost and postdoctoral project of Lorenzo del Re illustrated one of the longest quantum circuits ever run including 2000 sequential time steps. This work was run back in 2021, on IBM quantum computers, but only published this year. Collaborating on this project was Prof. Freericks, Lex Kemper (from North Carolina State University), Barbara Jones (IBM), and Nate Earnest-Noble (IBM). Barbara Jones was a member of the Industrial Advisory Board, but unfortunately passed away in 2024. Circuits of the type run in this project are self-correcting, and this work illustrated how one can run such circuits much longer than the decoherence time of the quantum computer.

The paper is at: Long-time error-mitigating simulation of open quantum systems on near term quantum computers | npj Quantum Information