Quantum Electrodynamics in a Topological Waveguide
Abstract
While designing the energy-momentum relation of photons is key to many linear, nonlinear, and quantum optical phenomena, a new set of light-matter properties may be realized by employing the topology of the photonic bath itself. In this work we experimentally investigate the properties of superconducting qubits coupled to a metamaterial waveguide based on a photonic analog of the Su-Schrieffer-Heeger model. We explore topologically induced properties of qubits coupled to such a waveguide, ranging from the formation of directional qubit-photon bound states to topology-dependent cooperative radiation effects. Addition of qubits to this waveguide system also enables direct quantum control over topological edge states that form in finite waveguide systems, useful for instance in constructing a topologically protected quantum communication channel. More broadly, our work demonstrates the opportunity that topological waveguide-QED systems offer in the synthesis and study of many-body states with exotic long-range quantum correlations.
Additional Information
© 2021 Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Received 26 June 2020; revised 2 November 2020; accepted 13 November 2020; published 25 January 2021. The authors thank Xie Chen and Hans Peter Büchler for helpful discussions. We also appreciate MIT Lincoln Laboratories for the provision of a traveling-wave parametric amplifier used for both spectroscopic and time-domain measurements in this work, and Jen-Hao Yeh and B. S. Palmer for the cryogenic attenuators for reducing thermal noise in the metamaterial waveguide. This work was supported by the AFOSR MURI Quantum Photonic Matter (Grant No. FA9550-16-1-0323), the DOE-BES Quantum Information Science Program (Grant No. DE-SC0020152), the AWS Center for Quantum Computing, the Institute for Quantum Information and Matter, an NSF Physics Frontiers Center (Grant No. PHY-1733907) with support of the Gordon and Betty Moore Foundation, and the Kavli Nanoscience Institute at Caltech. V. S. F. gratefully acknowledges support from NSF GFRP Fellowship. A. S. is supported by Institute for Quantum Information and Matter Postdoctoral Fellowship. A. G.-T. acknowledges funding from project PGC2018-094792-B-I00 (MCIU/AEI/FEDER, UE), CSIC Research Platform PTI-001, and CAM/FEDER Project No. S2018/TCS-4342 (QUITEMAD-CM).Attached Files
Published - PhysRevX.11.011015.pdf
Submitted - 2005.03802.pdf
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Additional details
- Eprint ID
- 106318
- Resolver ID
- CaltechAUTHORS:20201028-082500909
- Air Force Office of Scientific Research (AFOSR)
- FA9550-16-1-0323
- Department of Energy (DOE)
- DE-SC0020152
- AWS Center for Quantum Computing
- Institute for Quantum Information and Matter (IQIM)
- NSF
- PHY-1733907
- Gordon and Betty Moore Foundation
- Kavli Nanoscience Institute
- NSF Graduate Research Fellowship
- Ministerio de Ciencia, Innovación y Universidades (MCIU)
- PGC2018-094792-BI00
- Agencia Estatal de Investigación
- Fondo Europeo de Desarrollo Regional (FEDER)
- Consejo Superior de Investigaciones Científicas
- PTI-001
- Fondo Europeo de Desarrollo Regional (FEDER)
- S2018/TCS-4342
- Created
-
2020-10-29Created from EPrint's datestamp field
- Updated
-
2022-05-10Created from EPrint's last_modified field
- Caltech groups
- Institute for Quantum Information and Matter, Kavli Nanoscience Institute, AWS Center for Quantum Computing