Entangling macroscopic diamonds at room temperature

Download
  1. Get@NRC: Entangling macroscopic diamonds at room temperature (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1126/science.1211914
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleScience
ISSN0036-8075
Volume334
Issue6060
Pages12531256; # of pages: 4
Subjectdiamond; diamond; quantum mechanics; Raman spectroscopy; temperature effect; vibration; article; chemical interaction; environmental temperature; noise; phonon; photon; priority journal; quantum yield; room temperature
AbstractQuantum entanglement in the motion of macroscopic solid bodies has implications both for quantum technologies and foundational studies of the boundary between the quantum and classical worlds. Entanglement is usually fragile in room-temperature solids, owing to strong interactions both internally and with the noisy environment. We generated motional entanglement between vibrational states of two spatially separated, millimeter-sized diamonds at room temperature. By measuring strong nonclassical correlations between Raman-scattered photons, we showed that the quantum state of the diamonds has positive concurrence with 98% probability. Our results show that entanglement can persist in the classical context of moving macroscopic solids in ambient conditions.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC)
Peer reviewedYes
NPARC number21271749
Export citationExport as RIS
Report a correctionReport a correction
Record identifier31ea5425-f8da-450c-a8bd-bf5487ef40ee
Record created2014-03-24
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)