Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Experimental observation of anomalous trajectories of single photons
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.
Show others and affiliations
2017 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 95, no 4, article id 042121Article in journal (Refereed) Published
Abstract [en]

A century after its conception, quantum mechanics still hold surprises that contradict many "common sense" notions. The contradiction is especially sharp in case one consider trajectories of truly quantum objects such as single photons. From a classical point of view, trajectories are well defined for particles, but not for waves. The wave-particle duality forces a breakdown of this dichotomy and quantum mechanics resolves this in a remarkable way: Trajectories can be well defined, but they are utterly different from classical trajectories. Here, we give an operational definition to the trajectory of a single photon by introducing a technique to mark its path using its spectral composition. The method demonstrates that the frequency degree of freedom can be used as a bona fide quantum measurement device (meter). The analysis of a number of setups, using our operational definition, leads to anomalous trajectories which are noncontinuous and in some cases do not even connect the source of the photon to where it is detected. We carried out an experimental demonstration of these anomalous trajectories using a nested interferometer. We show that the two-state vector formalism provides a simple explanation for the results. © 2017 American Physical Society.

Place, publisher, year, edition, pages
American Physical Society , 2017. Vol. 95, no 4, article id 042121
Keywords [en]
Degrees of freedom (mechanics), Particle beams, Photons, Quantum theory, Classical trajectories, Degree of freedom, Experimental demonstrations, Operational definition, Quantum measurement, Single photons, Spectral composition, Wave-particle duality, Trajectories
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-207353DOI: 10.1103/PhysRevA.95.042121ISI: 000399783900001Scopus ID: 2-s2.0-85017623772OAI: oai:DiVA.org:kth-207353DiVA, id: diva2:1097084
Note

QC 20170522

Available from: 2017-05-22 Created: 2017-05-22 Last updated: 2017-05-23Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Kedem, Yaron
By organisation
Nordic Institute for Theoretical Physics NORDITA
In the same journal
Physical Review A. Atomic, Molecular, and Optical Physics
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 17 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf