Repeatable measurements in quantum theory: Their role and feasibility
- Harvard Univ., Cambridge, MA (United States)
- Nicolaus Copernicus Univ., Torun (Poland)
- Univ. of Turku (Finland)
Recent advantages in experimental quantum physics call for a careful reconsideration of the measurements process in quantum mechanics. In this paper we describe the structure of the ideal measurements and their status among the repeatable measurements. Then we provide an exhaustive account of the interrelations between repeatability and the apparently weaker notions of value reproducible or first-kind measurements. We demonstrate the close link between repeatable measurements and discrete observables and show how the ensuing measurement limitations for continuous observables can be lifted in a way that is in full accordance with actual experimental practice. We present examples of almost repeatable measurements of continuous observables and some realistic models of weakly disturbing measurements.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 146082
- Journal Information:
- Foundations of Physics, Vol. 25, Issue 9; Other Information: PBD: Sep 1995
- Country of Publication:
- United States
- Language:
- English
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