Seminars & Colloquia
Georgia Institute of Technology
"SEMINAR CANCELED DUE TO COVID-19 DIRECTIVES - Towards Scalable and Reliable Architectures for Quantum Computing Platforms"
Tuesday March 31, 2020 09:30 AM
Location: 3211, EB2 NCSU Centennial Campus
(Visitor parking instructions)
In this talk, I will discuss some of our recent work that aims to improve the reliability of near-term quantum computers by developing compilation techniques to mitigate hardware errors. Our first work (ASPLOS 2019) exploits the variability in the error rates of qubits to steer more operations towards qubits with lower error rates and avoid error-prone qubits. Our second work (MICRO 2019a) looks at executing different versions of the programs tuned to cause diverse mistakes so that the machine is less vulnerable to correlated errors, thereby making it easier to infer the correct answer. Our third work (MICRO 2019b) looks at exploiting the state-dependent bias in measurement errors (state 1 is more error-prone than state 0) and dynamically flips the state of the qubit to measure the stronger state. We perform our evaluations on real quantum machines from IBM and demonstrate significant improvement in the overall system reliability. If time permits, I will also briefly discuss the control hardware (MICRO 2017) aspect of designing quantum computers, including some of our work on the cryogenic processor and cryogenic memory system.
Host: Frank Mueller, CSC