Verification of the uncertainty principle in neutron interferometry

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

A recent neutron interferometry experiment has been interpreted as an explicit verification of the uncertainty principle. Here the question is discussed which mathematical expression of the uncertainty principle is relevant to this experiment. It is shown that the experiment does not measure the standard deviation σq in position independently of ad hoc assumptions on the shape of the wavefunction. Rather, it is the "mean peak width" that is measured directly. Therefore, the natural interpretation of this experiment is not as a verification of the Heisenberg relation σpσq ≥ 1 2; but rather of a relation between mean peak width in position and the overall spread in momentum.

Original languageEnglish (US)
Pages (from-to)59-62
Number of pages4
JournalPhysics Letters A
Volume108
Issue number2
DOIs
StatePublished - Mar 18 1985
Externally publishedYes

Fingerprint Dive into the research topics of 'Verification of the uncertainty principle in neutron interferometry'. Together they form a unique fingerprint.

Cite this