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A quantum multiply-accumulator

Maynard, C. M. and Pius, E. (2014) A quantum multiply-accumulator. Quantum Information Processing, 13 (5). pp. 1127-1138. ISSN 1573-1332

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To link to this item DOI: 10.1007/s11128-013-0715-5

Abstract/Summary

This paper proposes a quantum multiply-accumulator circuit (QMAC), which can perform the calculation on conventional integers faster than its classical counterpart. Whereas classically applying a multiply–adder (MAC) n times to k bit integers would require O(n log k) parallel steps, the hybrid QMAC needs only O(n+k) steps for the exact result and O(n+log k) steps for an approximate result. The proposed circuit could potentially be embedded in a conventional computer architecture as a quantum device or accelerator, enabling a wide range of applications to execute faster.

Item Type:Article
Refereed:Yes
Divisions:No Reading authors. Back catalogue items
ID Code:78132
Publisher:Springer

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