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arXiv · 1404.4134

Solution to time-energy costs of quantum channels

Chi-Hang Fred Fung·H. F. Chau·Chi-Kwong Li·Nung-Sing Sze
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Abstract

We derive a formula for the time-energy costs of general quantum channels proposed in [Phys. Rev. A 88, 012307 (2013)]. This formula allows us to numerically find the time-energy cost of any quantum channel using positive semidefinite programming. We also derive a lower bound to the time-energy cost for any channels and the exact the time-energy cost for a class of channels which includes the qudit depolarizing channels and projector channels as special cases.

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Chi-Hang Fred Fung, H. F. Chau, Chi-Kwong Li, Nung-Sing Sze. 2014-12-16. Solution to time-energy costs of quantum channels. https://arxiv.org/abs/1404.4134

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