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Quantum Optomechanics

All articles tagged with #quantum optomechanics

Florence Team Achieves Room-Temperature Entanglement Between Levitated Glass and Light
science7 days ago

Florence Team Achieves Room-Temperature Entanglement Between Levitated Glass and Light

Researchers at the University of Florence have demonstrated persistent quantum entanglement between a levitated 100-nanometer glass nanosphere and light at room temperature. By using a dual-laser optical tweezer system, they cooled the sphere's motion to its quantum ground state while entangling it with outgoing light, bypassing the need for cryogenic cooling. This milestone, published in Science, provides a potential interface for quantum networks by allowing entangled states to travel via light.

"Room-Temperature Quantum Control: Milestone Achieved in Optomechanics and Optical Squeezing"
science-and-technology2 years ago

"Room-Temperature Quantum Control: Milestone Achieved in Optomechanics and Optical Squeezing"

Researchers have demonstrated room-temperature quantum optomechanics using an ultralow noise cavity and a phononic-engineered membrane-in-the-middle system. By overcoming challenges such as thermal intermodulation noise and vibrations of cavity mirror substrates, they achieved optomechanical squeezing of light and prepared displaced thermal states with single-phonon occupation, showcasing the system's ability for measurement-based quantum state preparation protocols. This breakthrough paves the way for real-time quantum control of macroscopic mechanical resonators at room temperature, with potential applications in quantum technology and hybrid quantum systems.