Show simple item record

dc.contributor.authorSokolovski D.
dc.contributor.authorAkhmatskaya E.
dc.date.accessioned2017-02-21T08:16:49Z
dc.date.available2017-02-21T08:16:49Z
dc.date.issued2011-12-31
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/20.500.11824/432
dc.description.abstractWe show that in wave packet tunneling, localization of the transmitted particle amounts to a quantum measurement of the delay it experiences in the barrier. With no external degree of freedom involved, the envelope of the wave packet plays the role of the initial pointer state. Under tunneling conditions such "self-measurement" is necessarily weak, and the Hartman effect just reflects the general tendency of weak values to diverge, as postselection in the final state becomes improbable. We also demonstrate that it is a good precision, or a 'not really weak' quantum measurement: no matter how wide the barrier d, it is possible to transmit a wave packet with a width σ small compared to the observed advancement. As is the case with all weak measurements, the probability of transmission rapidly decreases with the ratio σ/d. © 2011 American Physical Society.
dc.formatapplication/pdf
dc.languageeng
dc.publisherPhysical Review A - Atomic, Molecular, and Optical Physics
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/es/
dc.titleHartman effect and weak measurements that are not really weak
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1103/PhysRevA.84.022104
dc.relation.publisherversionhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-79961096392&doi=10.1103%2fPhysRevA.84.022104&partnerID=40&md5=07c19c6a53f0ffb7e9e3fb9a308feb86


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

info:eu-repo/semantics/openAccess
Except where otherwise noted, this item's license is described as info:eu-repo/semantics/openAccess