Yale University

Philip Reinhold

Liang Jiang

Michel Devoret

Robert J Schoelkopf, Iii

Luigi Frunzio

Steven M Girvin

Victor V Albert

Reinier Heeres

Serge Rosenblum

Robert J Schoelkopf

Robert J Iii Schoelkopf

Techniques for providing hardware-efficient fault-tolerant quantum operations are provided. In some aspects a cavity and an ancilla transmon are used to implement a quantum operation by encoding a logical qubit using more than two energy levels of the cavity, encoding information using more than two energy levels of the ancilla transmon, and creating an interaction between the cavity and the ancilla transmon that decouples at least one error type in the ancilla transmon from the cavity.

Hardware-efficient fault-tolerant operations with superconducting circuits

Techniques are described in which a qubit is far off-resonantly, or dispersively, coupled to a quantum mechanical oscillator. In particular, a dispersive coupling between a physical qubit and a quantum mechanical oscillator may be selected such that control of the combined qubit-oscillator system can be realized. The physical qubit may be driven with an electromagnetic pulse (e.g., a microwave pulse) and the quantum mechanical oscillator simultaneously driven with another electromagnetic pulse, the combination of which results in a change in state of the qubit-oscillator system.

Techniques of oscillator state manipulation for quantum information processing and related systems and methods

Growing community of inventors

New Haven, CT, United States of America

Philip Reinhold