Hydrodynamical quantum state reconstruction
Quantum Physics
2011-08-04 v1
Abstract
The density matrix of a nonrelativistic wave-packet in an arbitrary, one-dimensional and time-dependent potential can be reconstructed by measuring hydrodynamical moments of the Wigner distribution. An n-th order Taylor polynomial in the off-diagonal variable is obtained by measuring the probability distribution at n+1 discrete time values.
Cite
@article{arxiv.quant-ph/9805046,
title = {Hydrodynamical quantum state reconstruction},
author = {Lars M. Johansen},
journal= {arXiv preprint arXiv:quant-ph/9805046},
year = {2011}
}
Comments
4 pages, 3 figures, to appear in Phys. Rev. Lett