Research PapersNo Access

EFFICIENCY OF QUANTUM STATE TOMOGRAPHY FOR QUBITS

KOICHI YAMAGATA

Department of Mathematics, Osaka University, Toyonaka, Osaka 560-0043, Japan

https://doi.org/10.1142/S0219749911007551Cited by:18 (Source: Crossref)

Abstract

The efficiency of quantum state tomography is discussed from the point of view of quantum parameter estimation theory, in which the trace of the weighted covariance is to be minimized. It is shown that tomography is optimal only when a special weight is adopted.

Keywords:

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