Distributed quantum computing with black-box subroutines

• URL: http://arxiv.org/abs/2505.14519v1
• Date: Tue, 20 May 2025 15:44:54 GMT
• Title: Distributed quantum computing with black-box subroutines
• Authors: X. Xu, Y. -D. Liu, S. Shi, Y. -J. Wang, D. -S. Wang,
• Abstract summary: We propose a general protocol for distributed quantum computing that accommodates arbitrary unknown subroutines.<n>It can be applied to scale up quantum computing through multi-chip interconnection.<n>We demonstrate that this protocol can be physically implemented using currently available quantum computing platforms.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: In this work, we propose a general protocol for distributed quantum computing that accommodates arbitrary unknown subroutines. It can be applied to scale up quantum computing through multi-chip interconnection, as well as to tasks such as estimating unknown parameters or processes for circuit depth reduction and constructing secure quantum cryptographic protocols. Our protocol builds upon a few techniques we develop, such as the oblivious quantum teleportation and control, which can circumvent quantum no-go theorems on the manipulation of unknown objects. Furthermore, we demonstrate that this protocol can be physically implemented using currently available quantum computing platforms. These results suggest that our framework could provide a foundation for developing more advanced quantum algorithms and protocols in the future.

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