Hydrodynamical Quantum State Reconstruction

Autor: Lars M. Johansen
Rok vydání: 1998
Předmět:
Zdroj: Quantum Communication, Computing, and Measurement 2 ISBN: 0306463075
Lars M. Johansen
ISSN: 1079-7114
0031-9007
DOI: 10.1103/physrevlett.80.5461
Popis: 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.
Comment: 4 pages, 3 figures, to appear in Phys. Rev. Lett
Databáze: OpenAIRE