: Use focused laser beams to hold microscopic objects or single atoms in place via radiation pressure.
: Squeezing "shirks" the uncertainty in one variable (like phase) by increasing it in another (like amplitude).
The integration of noise reduction and trapping is leading to the . By trapping atoms (memory) and connecting them via low-noise squeezed light (transmission), we are building a network that is physically impossible to hack. Quantum Optics Including Noise Reduction, Trapp...
: Combine magnetic fields and laser cooling to slow atoms to micro-Kelvin temperatures.
: Placing an atom inside a highly reflective mirror cavity to enhance its interaction with a single mode of light. Future Horizons : Use focused laser beams to hold microscopic
(e.g., introductory, undergraduate, or peer-review style)
: Squeezed vacuum states are now used in LIGO to detect gravitational waves by reducing background quantum noise. By trapping atoms (memory) and connecting them via
Classical optical measurements are limited by "shot noise," a result of the random arrival times of photons. Quantum optics overcomes this through .