arXiv:1105.4976 [quant-ph]AbstractReferencesReviewsResources
Sequential measurements of conjugate observables
Claudio Carmeli, Teiko Heinosaari, Alessandro Toigo
Published 2011-05-25Version 1
We present a unified treatment of sequential measurements of two conjugate observables. Our approach is to derive a mathematical structure theorem for all the relevant covariant instruments. As a consequence of this result, we show that every Weyl-Heisenberg covariant observable can be implemented as a sequential measurement of two conjugate observables. This method is applicable both in finite and infinite dimensional Hilbert spaces, therefore covering sequential spin component measurements as well as position-momentum sequential measurements.
Comments: 25 pages
Journal: J. Phys. A: Math. Theor. 44 (2011) 285304
Keywords: conjugate observables, covering sequential spin component measurements, infinite dimensional hilbert spaces, position-momentum sequential measurements, relevant covariant instruments
Tags: journal article
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