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Quantum Mechanical Models of Turing Machines That Dissipate No Energy

Paul A. Benioff

Physical Review Letters, 1982

296 citations

Abstract

Quantum mechanical Hamiltonian models of Turing machines are constructed here on a finite lattice of spin-\textonehalf{} systems. The models do not dissipate any energy and they operate at the quantum limit in that the system (energy uncertainty)/(computation speed) is close to the limit given by the time-energy uncertainty principle.

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