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Deterministic Generation of Multidimensional Photonic Cluster States with a Single Quantum Emitter

Ferreira, Vinicius S. and Kim, Gihwan and Butler, Andreas and Pichler, Hannes and Painter, Oskar (2022) Deterministic Generation of Multidimensional Photonic Cluster States with a Single Quantum Emitter. . (Unpublished)

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Multidimensional photonic graph states, such as cluster states, have prospective applications in quantum metrology, secure quantum communication, and measurement-based quantum computation. However, to date, generation of multidimensional cluster states of photonic qubits has relied on probabilistic methods that limit the scalability of typical generation schemes in optical systems. Here we present an experimental implementation in the microwave domain of a resource-efficient scheme for the deterministic generation of 2D photonic cluster states. By utilizing a coupled resonator array as a slow-light waveguide, a single flux-tunable transmon qubit as a quantum emitter, and a second auxiliary transmon as a switchable mirror, we achieve rapid, shaped emission of entangled photon wavepackets, and selective time-delayed feedback of photon wavepackets to the emitter qubit. We leverage these capabilities to generate a 2D cluster state of four photons with 70\% fidelity, as verified by tomographic reconstruction of the quantum state. We discuss how our scheme could be straightforwardly extended to the generation of even larger cluster states, of even higher dimension, thereby expanding the scope and practical utility of such states for quantum information processing tasks.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper
Ferreira, Vinicius S.0000-0002-9522-2567
Pichler, Hannes0000-0003-2144-536X
Painter, Oskar0000-0002-1581-9209
Additional Information:We thank Eunjong Kim for helpful discussions regarding experimental setup, and we thank Mo Chen for his collaboration in fridge-related work. This work was supported by the AFOSR MURI Quantum Photonic Matter (grant 16RT0696), through a grant from the Department of Energy (grant DE-SC0020152), and through a sponsored research agreement with Amazon Web Services. V.F gratefully acknowledges support from NSF GFRP Fellowship.
Group:Kavli Nanoscience Institute, Institute for Quantum Information and Matter
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)16RT0696
Department of Energy (DOE)DE-SC0020152
Amazon Web ServicesUNSPECIFIED
NSF Graduate Research FellowshipUNSPECIFIED
Record Number:CaltechAUTHORS:20230316-224545724
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:120115
Deposited By: George Porter
Deposited On:16 Mar 2023 23:26
Last Modified:16 Mar 2023 23:26

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