Quantum Communication Between Distant Superconducting Circuits Combined With Fast, High-Fidelity Readout
ORAL
Abstract
Deterministic chip-to-chip quantum protocols between distant quantum processors are a promising route for scaling up quantum computers. Through the emission and absorption of single microwave photons these protocols [1,2,3,4] allow for quantum communication between superconducting circuits located on separate chips, also at meter-scale distances [5]. In order to achieve high fidelities in these algorithms, the photon emission and absorption must be fast and reliable.
At the same time, fast high-fidelity readout of the qubits is key for applications ranging from quantum computing algorithms to tests of fundamental physics. Both features require a careful selection of the device parameters. In this talk, we present the main challenges and a first implementation of a superconducting circuit fulfilling the aforementioned needs.
[1] C. Axline et al., Nature Physics 14, 705 (2018)
[2] P. Campagne-Ibarcq et al., PRL 120, 200501 (2018)
[3] P. Kurpiers et al., Nature 558, 264 (2018)
[4] N. Leung et al., npj Quantum Information 5, 18 (2019)
[5] P. Magnard et al., arXiv:2008.01642 (2020)
At the same time, fast high-fidelity readout of the qubits is key for applications ranging from quantum computing algorithms to tests of fundamental physics. Both features require a careful selection of the device parameters. In this talk, we present the main challenges and a first implementation of a superconducting circuit fulfilling the aforementioned needs.
[1] C. Axline et al., Nature Physics 14, 705 (2018)
[2] P. Campagne-Ibarcq et al., PRL 120, 200501 (2018)
[3] P. Kurpiers et al., Nature 558, 264 (2018)
[4] N. Leung et al., npj Quantum Information 5, 18 (2019)
[5] P. Magnard et al., arXiv:2008.01642 (2020)
*This work is supported by the European Research Council (ERC), by the NCCR QSIT, by ETH Zurich, by NSERC, the Canada First Research Excellence Fund and by the Vanier Canada Graduate Scholarships.
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Presenters
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Simon Storz
- ETH Zurich