How we make superconducting qubits live longer
Date:
Lecture / Seminar
Time: 12:30-14:00
Title: Spotlight on Science lecture sponsored by the Staff Scientists Council
Location: Gerhard M.J. Schmidt Lecture Hall
Lecturer: Dr. Fabien Lafont
Details: Spotlight on Science lecture sponsored by the Staff Scientists Council
Abstract: Classical computers use stable and long-lived units of information, called bits, ... Read more Classical computers use stable and long-lived units of information, called bits, to perform computations. In contrast, quantum computers rely on qubits. The downside is that qubits are intrinsically much more prone to error. Two of the biggest challenges in building a practical quantum computer are extending the lifetime of qubits and better detection of errors. In this seminar, I will present our recent work on improving by an order of magnitude the coherence time of a superconducting qubit. A key aspect of this breakthrough was the creation of a large Schrödinger cat state with more than 1,000 photons, which can be used for error correction in quantum systems. In the second part of the talk, I will introduce a novel method for real-time error detection, where we continuously monitor the state of a superconducting element to detect and correct qubit dephasing as it occurs. These developments are important steps towards improving the reliability and performance of quantum systems.Close abstract
