Finite number of measurements in optical homodyne tomography

Päivi Törmä*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

For infinite dimensional quantum systems, no general theory exists of the effect of using a finite size ensemble in quantum state measurements. We approach this topic by considering one particular measurement scheme, optical homodyne tomography. We define a measure which tells us how well a quantum state, belonging to a pre-set state space, is determined after N measurements. We illustrate the method by considering, as an example, a state space which includes all coherent and squeezed states as well as certain superpositions of these.

Original languageEnglish
Pages (from-to)2437-2447
Number of pages11
JournalJournal of Modern Optics
Volume43
Issue number12
DOIs
Publication statusPublished - Dec 1996
MoE publication typeA1 Journal article-refereed

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