Yale University

Reinier Heeres

Liang Jiang

Robert J Schoelkopf, Iii

Victor V Albert

Michel Devoret

Luigi Frunzio

Stefan Krastanov

Philip Reinhold

Brian Vlastakis

Robert J Schoelkopf Iii

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

According to some aspects, a method is provided of operating a circuit quantum electrodynamics system that includes a physical qubit dispersively coupled to a quantum mechanical oscillator, the method comprising applying a first electromagnetic pulse to the physical qubit based on a number state of the quantum mechanical oscillator, wherein the first electromagnetic pulse causes a change in state of the quantum mechanical oscillator, and applying, subsequent to application of the first electromagnetic pulse, a second electromagnetic pulse to the quantum mechanical oscillator that coherently adds or removes energy from the quantum mechanical oscillator.

Techniques of oscillator control for quantum information processing and related systems and methods

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Heemskerk, Netherlands

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