Entangling macroscopic diamonds at room temperature. Lee, K., Sprague, M., Sussman, B., Nunn, J., Langford, N., Jin, X. c, Champion, T., Michelberger, P., Reim, K., England, D., Jaksch, D. c, & Walmsley, I. Science, 334(6060):1253-1256, 2011. Paper doi abstract bibtex Quantum 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.
@Article{Lee2011,
author = {Lee, K.C.a , Sprague, M.R.a , Sussman, B.J.b , Nunn, J.a , Langford, N.K.a , Jin, X.-M.a c , Champion, T.a , Michelberger, P.a , Reim, K.F.a , England, D.a , Jaksch, D.a c , Walmsley, I.A.a},
journal = {Science},
title = {Entangling macroscopic diamonds at room temperature},
year = {2011},
number = {6060},
pages = {1253-1256},
volume = {334},
abstract = {Quantum 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.},
affiliation = {Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom; National Research Council of Canada, Ottawa, ON K1A 0R6, Canada; Centre for Quantum Technologies, National University of Singapore, Singapore},
document_type = {Article},
doi = {10.1126/science.1211914},
source = {Scopus},
timestamp = {2016.03.02},
url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-82755187063&partnerID=40&md5=1ec02866ac515c76758d960ab1c80651},
}
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