[CS] Announcement of Yongshan Ding Dissertation Defense/Jun 29, 2021

[nitayack at cs.uchicago.edu]

This is an announcement of Yongshan Ding's Dissertation Defense.
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Candidate: Yongshan Ding

Date: Tuesday, June 29, 2021

Time: 3:30 pm

Place: Via Zoom 
https://uchicago.zoom.us/j/93594085555?pwd=bzBhREJ4U1NSUlJIMnJseFoxU3ZSQT09

Meeting ID: 935 9408 5555
Passcode: 712764"

Title: Architecting Quantum Computer Systems in the Presence of Noise

Abstract: Quantum computers may solve some problems far beyond the reach of classical digital computers. However, emerging quantum systems are typically noisy and difficult to control. These noises create significant difficulties for the practical usage of quantum systems, leaving a substantial gap between the requirements of quantum applications and the realities of noisy devices. Bridging this gap is crucial – the dissertation shows that the system software can adapt to the constraints of large applications and noisy hardware. In particular, this dissertation combines systems techniques at three main levels: i. Gate-level noise mitigation, which enhances the robustness of quantum processors through coordinated control instructions that reduce errors; ii. Program-level quantum memory management, which addresses problems of qubit allocation throughout a quantum program and implements automated tools to selectively reuse qubits, much like in garbage collection for classical programs; iii. Architecture-level quantum error correction with low overhead, which seeks to provide correctness guarantees for quantum applications by encoding bits so that errors can be detected and corrected, analogous to classical error-correcting codes.

Committee Members: Fred Chong, Diana Franklin, Margaret Martonosi