Modular values and weak values of quantum observables

Y. Kedem, L. Vaidman

Research output: Contribution to journalArticlepeer-review

Abstract

The concept of a modular value of an observable of a pre- and postselected quantum system is introduced. It is similar in form and in some cases has a close connection to the weak value of an observable, but instead of describing an effective interaction when the coupling is weak, it describes a coupling of any strength but only to qubit meters. The generalization of the concept for a coupling of a composite system to a multiqubit meter provides an explanation of some current experiments.

Original languageEnglish
Article number230401
JournalPhysical Review Letters
Volume105
Issue number23
DOIs
StatePublished - 30 Nov 2010

Fingerprint

Dive into the research topics of 'Modular values and weak values of quantum observables'. Together they form a unique fingerprint.

Cite this