Notes on optimality of direct characterisation of quantum dynamics
Quantum Physics
2007-05-23 v1
Abstract
We argue that the claimed optimality of a new process tomography method suggested in [quant-ph/0601033] and [quant-ph/0601034] is based on not completely fair comparison that does not take into account the available information in an equal way. We also argue that the method is not a new process tomography scheme, but rather represents an interesting modification of ancilla assisted process tomography method. In our opinion these modifications require deeper understanding and further investigation.
Cite
@article{arxiv.quant-ph/0603151,
title = {Notes on optimality of direct characterisation of quantum dynamics},
author = {Mario Ziman},
journal= {arXiv preprint arXiv:quant-ph/0603151},
year = {2007}
}
Comments
3 pages