Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Physics World

Distant diamonds become entangled

Published Jan 1, 2012• 0 citations
Publisher

Abstract

Physicists in the UK have put two room-temperature diamonds 15 cm apart into a state of quantum entanglement by creating phonons – quantized vibrations – within the crystals.
DOI
10.1088/2058-7058/25/01/5

Related papers

Quantum Correlation Between Distant Diamonds

Luming Duan

Entanglement of spatially separated systems is not limited to atomic systems, but can be created between diamond crystals separated by several centimeters.

Science•Dec 2, 2011•5 citations

Entangbling – quantum correlations in diamond

Ian A. Walmsley

We demonstrate entanglement between the vibrations of two macroscopic, spatially-separated diamonds at room temperature by means of off-resonant Raman scattering of ultrashort optical pulses and quantum erasure.

Frontiers in Optics•Jan 1, 2012•0 citations

Entangbling - Quantum correlations in diamond

Ian A. Walmsley

We demonstrate entanglement between the vibrations of two macroscopic, spatially-separated diamonds at room temperature by means of off-resonant Raman scattering of ultrashort optical pulses and quantum erasure.

IEEE Photonics Conference•Sep 1, 2012•0 citations

Entangled Optical Phonons in Diamond at Room Temperature

Michael Sprague, Ka Chung Lee, Benjamin Sussman +9 more

Bulletin of the American Physical Society•Jun 7, 2012•0 citations

Ultrafast Quantum Processing at Room-Temperature in Bulk Diamond Phonons

Benjamin Sussman, Philip J. Bustard, K.C. Lee +7 more

Bulletin of the American Physical Society•Jun 7, 2012•0 citations

Entangling Macroscopic Diamonds at Room Temperature

K. C. Lee, Michael Sprague, Benjamin Sussman +9 more

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.

Science•Dec 2, 2011•393 citations
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.