In:
Open Systems & Information Dynamics, World Scientific Pub Co Pte Ltd, Vol. 11, No. 01 ( 2004-03), p. 63-70
Abstract:
In this paper, we discuss the minimal number η of observables Q 1 ,…, Q η , where expectation values at some time instants t 1 ,…,t r determine the trajectory of a d-level quantum system (“qudit”) governed by the Gaussian semigroup [Formula: see text] We assume that the macroscopic information about the system in question is given by the mean values [Formula: see text] of n selfadjoint operators Q 1 ,…, Q n at some time instants t 1 〈 t 2 〈 … 〈 t r , where n 〈 d 2 − 1 and r ≤ deg μ(λ, 𝕃 ). Here μ(λ, 𝕃 ) stands for the minimal polynomial of the generator [Formula: see text] of the Gaussian flow Φ(t).
Type of Medium:
Online Resource
ISSN:
1230-1612
,
1793-7191
DOI:
10.1023/B:OPSY.0000024756.27667.fd
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
2004
detail.hit.zdb_id:
2008114-5
SSG:
11
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