Quantum information processing: The case of vanishing interaction energy
arXiv:quant-ph/0210186 · doi:10.1016/S0375-9601(02)01198-2
Abstract
We investigate the rate of operation of quantum "black boxes" ("oracles") and point out the possibility of performing an operation by a quantum "oracle" whose average energy equals zero. This counterintuitive result not only presents a generalization of the recent results of Margolus and Levitin, but might also sharpen the conceptual distinction between the "classical" and the "quantum" information.
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