Document Type

Article

Publication Date

2022

DOI

10.1103/PhysRevA.106.042410

Publication Title

Physical Review A

Volume

106

Issue

4

Pages

042410 (1-21)

Abstract

Single atoms in dipole microtraps or optical tweezers have recently become a promising platform for quantum computing and simulation. Here we report a detailed theoretical analysis of the physics underlying an implementation of a Rydberg two-qubit gate in such a system—a cornerstone protocol in quantum computing with single atoms. We focus on a blockade-type entangling gate and consider various decoherence processes limiting its performance in a real system. We provide numerical estimates for the limits on fidelity of the maximally entangled states and predict the full process matrix corresponding to the noisy two-qubit gate. We consider different excitation geometries and show certain advantages for the gate realization with linearly polarized driving beams. Our methods and results may find implementation in numerical models for simulation and optimization of neutral atom based quantum processors.

Rights

© 2022 American Physical Society

"Yes, the author or the author's employer may use all or part of the APS published article, including the APS-prepared version (e.g., the PDF from the online journal) without revision or modification, on the author's or employer's website as long as a fee is not charged. If a fee is charged, then APS permission must be sought. In all cases, the appropriate bibliographic citation and notice of the APS copyright must be included."

Original Publication Citation

Gerasimov, L. V., Yusupov, R. R., Moiseevsky, A. D., Vybornyi, I., Tikhonov, K. S., Kulik, S. P., Straupe, S. S., Sukenik, C. I., & Kupriyanov, D. V. (2022). Coupled dynamics of spin qubits in optical dipole microtraps: Application to the error analysis of a Rydberg-blockade gate. Physical Review A, 106(4), 1-21, Article 042410. https://doi.org/10.1103/PhysRevA.106.042410

ORCID

0000-0001-5025-2546 (Sukenik)

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