MEASUREMENTS, ERRORS, AND NEGATIVE KINETIC-ENERGY

Y AHARONOV, S POPESCU, D ROHRLICH, L VAIDMAN

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

An analaysis of errors in measurement yields insight into the penetration of quantum particles into classically forbidden regions. In addition to physical values, realistic measurements yield ''unphysical'' values which, we show, can form a consistent pattern. An experiment to isolate a particle in a classically forbidden region obtains negative values for its kinetic energy. These values realize the concept of a weak value, discussed in previous works.

Original languageEnglish
Pages (from-to)4084-4090
Number of pages7
JournalPhysical Review A: Atomic, Molecular and Optical Physics
Volume48
Issue number6
Publication statusPublished - Dec 1993

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