Amazon Technologies, Inc.

Arne Grimsmo

Oskar Jon Painter

Christopher Chamberland

Kyungjoo Noh

Fernando Brandao

Patricio Arrangoiz Arriola

Connor Hann

Joseph Kramer Iverson

Harald Esko Jakob Putterman

Prasahnt Sivarajah

Andrew Joseph Keller

Ashley James Milsted

Colm Andrew Ryan

Matthew Matheny

Menyoung Lee

Thomas Scaffidi

Systems and methods for implementing a quantum code using cat qubits as data qubits and transmon qubits as ancilla qubits is disclosed. In some embodiments, a three-level transmon is used and Chi-matching is performed to determine dispersive coupling coefficients between the cat qubits and first and second excited states of the transmon qubits, wherein the dispersive coupling coefficients are used to perform gates between the cat data qubits and the transmon ancilla qubits. The Chi-matching determines the dispersive coupling coefficients such that the cat qubits are rotated in a same manner while performing the gates regardless as to whether a given transmon ancilla qubit remains in a second excited state or has decayed to a first excited state.

Quantum codes implemented using cat data qubits and transmon ancilla qubits

Growing community of inventors

Pasadena, CA, United States of America

Arne Grimsmo