Monday, May 16, at 12:00
Levin building – Lectures Room
Speaker: Dr. Shlomi Kotler
"Entanglement ofMacroscopic Mechanical Objects"
We present direct anddeterministic entanglement of two macroscopic mechanical elements (drums) forthe first time. We show strong correlations between the position of one drumand the position of another drum with a corresponding anti-correlation for the momenta.Proving entanglement requires measuring the variances of the correlated signalswith a resolution and an accuracy that are well below the zero-temperaturequantum fluctuations of the drums. The amount of measured correlations(inferred) is more than a factor of two better than the best correlations thatcan be achieved classically. The amount of entanglement measured and theability to directly observe it without noise subtraction encourages futureresearch directions that include: entanglement distribution between separatedilution refrigerators, quantum illumination of objects, and quantumteleportation of mechanical states.
Reference: Kotler et. al. Science 372, 622-625 (2021)