Lower bound on the number of Toffoli gates in a classical reversible circuit through quantum information concepts.
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 in the example of classical Shannon data compression.
Popescu
Sandu
S
HH Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, United Kingdom.
Groisman
Berry
B
Massar
Serge
S