Observation of entanglement-dependent two-particle holonomic phase

Loredo, J. C., Broome, M. A., Smith, D. H. and White, A. G. (2014) Observation of entanglement-dependent two-particle holonomic phase. Physical Review Letters, 112 14: 143603.1-143603.5. doi:10.1103/PhysRevLett.112.143603

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Author Loredo, J. C.
Broome, M. A.
Smith, D. H.
White, A. G.
Title Observation of entanglement-dependent two-particle holonomic phase
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 1079-7114
0031-9007
Publication date 2014-04-10
Year available 2014
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.112.143603
Open Access Status File (Publisher version)
Volume 112
Issue 14
Start page 143603.1
End page 143603.5
Total pages 5
Place of publication College Park MD, United States
Publisher American Physical Society
Collection year 2015
Language eng
Abstract Holonomic phases - geometric and topological - have long been an intriguing aspect of physics. They are ubiquitous, ranging from observations in particle physics to applications in fault tolerant quantum computing. However, their exploration in particles sharing genuine quantum correlations lacks in observations. Here, we experimentally demonstrate the holonomic phase of two entangled photons evolving locally, which, nevertheless, gives rise to an entanglement-dependent phase. We observe its transition from geometric to topological as the entanglement between the particles is tuned from zero to maximal, and find this phase to behave more resiliently to evolution changes with increasing entanglement. Furthermore, we theoretically show that holonomic phases can directly quantify the amount of quantum correlations between the two particles. Our results open up a new avenue for observations of holonomic phenomena in multiparticle entangled quantum systems.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Centre for Quantum Computer Technology Publications
Official 2015 Collection
 
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