Optimal state estimation for d-dimensional quantum systems
量子物理
2009-10-31 v1
摘要
We establish a connection between optimal quantum cloning and optimal state estimation for d-dimensional quantum systems. In this way we derive an upper limit on the fidelity of state estimation for d-dimensional pure quantum states and, furthermore, for generalized inputs supported on the symmetric subspace.
引用
@article{arxiv.quant-ph/9812016,
title = {Optimal state estimation for d-dimensional quantum systems},
author = {D. Bruss and C. Macchiavello},
journal= {arXiv preprint arXiv:quant-ph/9812016},
year = {2009}
}
备注
3 pages