# Entangling Macroscopic Diamonds at Room Temperature

@article{Lee2011EntanglingMD, title={Entangling Macroscopic Diamonds at Room Temperature}, author={K. C. Lee and Michael R. Sprague and Benjamin J. Sussman and Joshua Nunn and Nathan K Langford and X.-M. Jin and Tessa F. M. Champion and Patrick Steffen Michelberger and K. F. Reim and Duncan England and Dieter Jaksch and Ian A. Walmsley}, journal={Science}, year={2011}, volume={334}, pages={1253 - 1256} }

Optical pulses are used to quantum mechanically entangle two diamonds several centimeters apart. 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…

## 273 Citations

The Advantages of Not Entangling Macroscopic Diamonds at Room Temperature.

- PhysicsJournal of atomic, molecular, and optical physics
- 2012

The ability to establish nonlocal macroscopic quantum correlations through path indistinguishability rather than entanglement offers the opportunity to greatly expand quantum macroscopy theory and application, even though it was not true nonlocal entanglements.

Quantum teleportation from light beams to vibrational states of a macroscopic diamond

- PhysicsNature communications
- 2016

An experimental demonstration of quantum teleportation from light beams to vibrational states of a macroscopic diamond under ambient conditions is reported, clearly exceeding the classical limit of 2/3.

Quantum Correlation Between Distant Diamonds

- PhysicsScience
- 2011

An important step is taken by demonstrating entanglement between oscillation patterns of atoms—phonon modes—of two diamond samples of millimeter size at room temperature, separated by a macroscopic distance of about 15 cm.

X-ray-generated heralded macroscopical quantum entanglement of two nuclear ensembles

- PhysicsScientific reports
- 2016

This work investigates theoretically a new implementation which employs more robust x-ray quanta to generate heralded entanglement between two crystal-hosted macroscopical nuclear ensembles, paving the way for first quantum communication protocols that use x- Ray qubits.

Quantum memories and large-scale quantum coherence based on Raman interactions

- Physics, Chemistry2013 IEEE Photonics Society Summer Topical Meeting Series
- 2013

Applied research into quantum technologies and fundamental research into the foundations of quantum mechanics run hand in hand, since our understanding of quantum correlations both advances, and is…

Remote quantum entanglement between two micromechanical oscillators

- PhysicsNature
- 2018

Remote quantum entanglement is demonstrated in a micromachined solid-state system comprising two optomechanical oscillators across two chips physically separated by 20 cm and with an optical separation of around 70 m.

Entanglement creation in cold molecular gases using strong laser pulses

- Physics
- 2013

While many-particle entanglement can be found in natural solids and strongly interacting atomic and molecular gases, generating highly entangled states between weakly interacting particles in a…

Heralding quantum entanglement between two room-temperature atomic ensembles

- PhysicsOptica
- 2021

Establishing quantum entanglement between individual nodes is crucial for building large-scale quantum networks, enabling secure quantum communication, distributed quantum computing, enhanced quantum…

Climbing the phonon Fock state ladder

- Physics
- 2018

Quantum states of mechanical motion can be important resources for quantum information, metrology, and studies of fundamental physics. Recent demonstrations of superconducting qubits coupled to…

Phonon interferometry for measuring quantum decoherence

- PhysicsPhysical Review A
- 2018

Experimental observation of the decoherence of macroscopic objects is of fundamental importance to the study of quantum collapse models and the quantum to classical transition. Optomechanics is a…

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