Entangled singularity patterns of photons in Ince-Gauss modes

Mario Krenn, Robert Fickler, Marcus Huber, Radek Lapkiewicz, William Plick, Sven Ramelow, Anton Zeilinger

Research output: Contribution to journalArticleScientificpeer-review

52 Citations (Scopus)

Abstract

Photons with complex spatial mode structures open up possibilities for new fundamental high-dimensional quantum experiments and for novel quantum information tasks. Here we show entanglement of photons with complex vortex and singularity patterns called Ince-Gauss modes. In these modes, the position and number of singularities vary depending on the mode parameters. We verify two-dimensional and three-dimensional entanglement of Ince-Gauss modes. By measuring one photon and thereby defining its singularity pattern, we nonlocally steer the singularity structure of its entangled partner, while the initial singularity structure of the photons is undefined. In addition we measure an Ince-Gauss specific quantum-correlation function with possible use in future quantum communication protocols. DOI: 10.1103/PhysRevA.87.012326

Original languageEnglish
Article number012326
Number of pages6
JournalPhysical Review A
Volume87
Issue number1
DOIs
Publication statusPublished - 23 Jan 2013
Externally publishedYes
Publication typeA1 Journal article-refereed

Keywords

  • ORBITAL-ANGULAR-MOMENTUM
  • BELL-INEQUALITY
  • QUANTUM CRYPTOGRAPHY
  • VIOLATION
  • BEAMS

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