Observation of entanglement between itinerant microwave photons and a superconducting qubit

Eichler C, Lang C, Fink JM, Govenius J, Filipp S, Wallraff AJ (2012)

Publication Type: Journal article

Publication year: 2012

Journal

Physical Review Letters American Physical Society

Book Volume: 109

Article Number: 240501

Journal Issue: 24

DOI: 10.1103/PhysRevLett.109.240501

Abstract

A localized qubit entangled with a propagating quantum field is well suited to study nonlocal aspects of quantum mechanics and may also provide a channel to communicate between spatially separated nodes in a quantum network. Here, we report the on-demand generation and characterization of Bell-type entangled states between a superconducting qubit and propagating microwave fields composed of zero-, one-, and two-photon Fock states. Using low noise linear amplification and efficient data acquisition we extract all relevant correlations between the qubit and the photon states and demonstrate entanglement with high fidelity. © 2012 American Physical Society.

Authors with CRIS profile

Christopher Eichler

Involved external institutions

Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich CH Switzerland (CH)

How to cite

APA:

Eichler, C., Lang, C., Fink, J.M., Govenius, J., Filipp, S., & Wallraff, A.J. (2012). Observation of entanglement between itinerant microwave photons and a superconducting qubit. Physical Review Letters, 109(24). https://dx.doi.org/10.1103/PhysRevLett.109.240501

MLA:

Eichler, Christopher, et al. "Observation of entanglement between itinerant microwave photons and a superconducting qubit." Physical Review Letters 109.24 (2012).

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