document: Self-reproduction in three-dimensional reversible cellular space Due to inevitable power dissipation , it is said that nano-scaled computing devices should perform their computing processes in a reversible manner . This will be a large problem in constructing three-dimensional nano-scaled functional objects . Reversible cellular automata -LRB- RCA -RRB- are used for modeling physical phenomena such as power dissipation , by studying the dissipation of garbage signals . We construct a three-dimensional self-inspective self-reproducing reversible cellular automaton by extending the two-dimensional version SR/sub 8 / . It can self-reproduce various patterns in three-dimensional reversible cellular space without dissipating garbage signals
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