Quantum information processing: The case of vanishing interaction energy

Details Quantum information processing: The case of vanishing interaction energy Quantum information processing: The case of vanishing interaction energy

2002-10-27

arxiv.org/abs/quant-ph/0210186v1

Physics

Quantum Physics

a new form of quant-ph/0103150; Journal Ref. Phys. Lett. A 302 (2002) 291

Scientific paper

10.1016/S0375-9601(02)01198-2

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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