Resources for Measurement-Based Quantum Carry-Lookahead Adder

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We present the design of a quantum carry-lookahead adder using measurement-based quantum computation. QCLA utilizes MBQC`s ability to transfer quantum states in unit time to accelerate addition. The quantum carry-lookahead adder (QCLA) is faster than a quantum ripple-carry adder; QCLA has logarithmic depth while ripple adders have linear depth. QCLA is an order of magnitude faster than a ripple-carry adder when adding registers longer than 100 qubits but requires a cluster state that is an order of magnitude larger. Hand optimization results in a $\approx$ 26% reduction in spatial resources for the circuit.
1 pages, 1 figures, International Symposium on Nanoscale Transport and Technology 2009, NTT, Hon Atsugi, Japan

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Quantum Physics, General Relativity and Quantum Cosmology

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http://salesiana.dossiersoluciones.com/handle/123456789/222076

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0901.3903
 http://arxiv.org/abs/0901.3903

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arXiv