Answers are grounded in this paper and cite their sources.
The Fredkin three-bit gate is universal for computational logic, and is reversible. Classically, it is impossible to do universal computation using reversible two-bit gates only. Here we construct the Fredkin gate using a combination of six two-body reversible (quantum) operators.
No takes yet. Share an insight, caveat, or question.
Chau et al. (1995) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: