All articles tagged with #spin squeezing
The article reports on the achievement of spin squeezing in an ensemble of nitrogen-vacancy centers in diamond, demonstrating enhanced quantum sensing capabilities through entanglement and reduced quantum noise, with data available at Harvard Dataverse.
Researchers have demonstrated the first direct observations of an optical-lattice clock operating below the classical quantum projection noise (QPN) limit, averaging down to a measurement precision level of 10−17. By entangling the atomic sample, the researchers were able to reduce the QPN limit and improve the frequency stability of optical lattice clocks, which can be used for practical applications such as GPS and exploring fundamental physics. This represents a major step toward improving state-of-the-art optical lattice clocks through spin squeezing.