Using Sideband Transitions for Two-Qubit Operations in Superconducting Circuits

By P. Leek, Stefan Filipp, P. Maurer, Matthias Baur, R. Bianchetti, J. M. Fink, M. Göppl, Lars Steffen, Andreas Wallraff. 2008

166 citations recorded by the source corpus.

We demonstrate the time-resolved driving of two-photon blue sideband transitions between superconducting qubits and a transmission line resonator. As an example of using these sideband transitions for a two-qubit operation, we implement a pulse sequence that first entangles one qubit with the resonator and subsequently distributes the entanglement between two qubits. We show the generation of 75% fidelity Bell states by this method. The full density matrix of the two-qubit system is extracted using joint measurement and quantum state tomography and shows close agreement with numerical simulation.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/35fd279a3dd8ee5a03c86f4de8623c9fb59e84d8

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

Citations in the corpus

Parametrically Activated Entangling Gates Using Transmon Qubits (2017, background): “While fixedfrequency qubits generally have long coherence times, this architecture requires satisfying stringent constraints on qubit frequencies and anharmonicities [5, 6, 8] which requires some tunability to scale to many qubits [9].”
Quantum computing with trapped ions (2008, background): “, 2004) and the generation of Bell states (Steffen et al., 2006; Leek et al., 2008).”