Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/10777
Title: Solution to time-energy costs of quantum channels
Authors: Fung, CHF
Chau, HF
Li, CK
Sze, NS 
Keywords: Fidelity
Quantum channel
Time-energy cost
Issue Date: 2015
Publisher: Rinton Press Inc.
Source: Quantum information and computation, 2015, v. 15, no. 7-8, p. 685-693 How to cite?
Journal: Quantum Information and Computation 
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.
URI: http://hdl.handle.net/10397/10777
ISSN: 1533-7146
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