Quantum Supremacy 5 Years Later

In June 2019, Google's experimentalists verified from its quantum computer that it accomplished the milestone of quantum supremacy—namely, performing a calculation on a quantum computer that cannot be performed on a classical computer within a reasonable time. This talk discusses the experiment that was performed and the superconducting qubit hardware requirements needed to perform such an experiment. We describe what needs to happen in order to reach the second milestone—quantum supremacy for condensed matter physics simulations. We first present a deep dive into the challenges of fabrication—namely, eliminating the microscopic origins of TLS—which is required to increase the coherence of qubits. We propose other techniques such as four-qubit interactions, which can further compress quantum circuits of interest. Finally, we propose a condensed-matter phase transition experiment that cannot be classically simulated.

Alan Ho

Alan Ho is the CEO of Qolab, a superconducting qubit startup focused on the fabrication of high-quality qubits. He received an Engineering Physics undergraduate degree from the University of British Columbia. He worked as a semiconductor process engineer at Triant Technologies and held management positions in Amazon and Dell cloud services. He founded his own mobile analytics company, InstaOps. At Google’s Quantum AI team, he led product and business development, launched quantum open source projects (Cirq/TensorFlow Quantum), and a quantum computing service. He also established collaborations with US national labs and served on the QED-C.

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