Southwest Quantum Information and Technology

Time-varying dissipation for passive error correction in small logical qubit architectures

Presenting Author: David Rodriguez Perez, Colorado School of Mines
Contributing Author(s): Eliot Kapit

A very common approach in designing superconducting qubit architectures focuses on increasing the quantum state coherence by reducing noise. However, an increasing body of research has shown that engineered noise can be used for the stabilization of quantum states. This work focuses on the use of time-varying, engineered noise via lossy qubits or resonators, coupled to high-coherence qubits to aid in prolonging their lifetimes. We demonstrate this with the most basic case in a single high coherence qubit coupled to a single lossy qubit. We then demonstrate this technique with an idealized three qubit bit-flip code as a show case for error correction. And finally, we discuss the future direction in implementing this technique with the Very Small Logical Qubit.

(Session 5 : Saturday from 5:00pm - 7:00pm)