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Lower bound on the number of Toffoli gates in a classical reversible circuit through quantum information concepts

Sandu Popescu·Berry Groisman·Serge Massar
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Abstract

The question of finding a lower bound on the number of Toffoli gates in a classical reversible circuit is addressed. A method based on quantum information concepts is proposed. The method involves solely concepts from quantum information - there is no need for an actual physical quantum computer. The method is illustrated on the example of classical Shannon data compression.

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Sandu Popescu, Berry Groisman, Serge Massar. 2005-03-28. Lower bound on the number of Toffoli gates in a classical reversible circuit through quantum information concepts. https://doi.org/10.1103/physrevlett.95.120503

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