Maximum Speed of Quantum Evolution |
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Authors: | M Andrecut M K Ali |
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Institution: | (1) Department of Physics, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada |
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Abstract: | In this paper, we discuss the question of the minimum time needed for any state of a given quantum system to evolve into a distinct (orthogonal) state. This problem is relevant to deriving physical limits in quantum computation and quantum information processing. Here, we consider both cases of nonadiabatic and adiabatic evolution and we derive the Hamiltonians corresponding to the minimum time evolution predicted by the Margolus–Levitin theorem. |
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Keywords: | quantum computation adiabatic quantum evolution |
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