  Proposed below is a reversible digital computer modeled after the natural
behavior of a quantum system. Using approaches usually reserved for idealized
quantum computers, the Reversible CAM, or State Vector Parallel (RSVP)
processor can easily find keywords in an unstructured database (that is, it can
solve a needle in a haystack problem). The RSVP processor efficiently solves a
SAT (Satisfiability of Boolean Formulae) problem; also it can aid in the
solution of a GP (Global Properties of Truth Table) problem. The power delay
product of the RSVP processor is exponentially lower than that of a standard
CAM programmed to perform similar operations.
