Towards the Heisenberg limit in microwave photon detection by a qubit array

Using an analytically solvable model, we show that a qubit array-based detector allows one to achieve the fundamental Heisenberg limit in detecting single photons. In the case of superconducting qubits, this opens other opportunities for quantum sensing and communications in the important microwave...

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Bibliographic Details
Published in:Physical review. B 2021-02, Vol.103 (6), p.1, Article 064503
Main Authors: Navez, P., Balanov, A. G., Savel'ev, S. E., Zagoskin, A. M.
Format: Article
Language:English
Subjects:
Arrays
Photons
Qubits (quantum computing)
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Summary:Using an analytically solvable model, we show that a qubit array-based detector allows one to achieve the fundamental Heisenberg limit in detecting single photons. In the case of superconducting qubits, this opens other opportunities for quantum sensing and communications in the important microwave range.
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.103.064503