Quantum Frontiers

Prof. Nir Davidson

Cooling atoms to the threshold of quantum degeneracy, then bending light and lasers to their will

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01 / Research

Research

The group works at the interface of atomic physics, quantum optics, and statistical physics, using laser-cooled and trapped atomic gases as a clean, tunable platform for precision experiments. By cooling atoms to microkelvin and nanokelvin temperatures and confining them in optical and magnetic traps, the lab reaches regimes where quantum statistics, coherence, and collective behaviour dominate over thermal motion, allowing fundamental phenomena to be isolated and measured with high control.

A central theme is the coherent manipulation of light and matter: the storage and slow propagation of optical pulses in atomic ensembles, the control of atomic coherence and dephasing, and the engineering of disorder and complex geometries in which to study transport, localization, and thermalization. In parallel, the group studies the physics of coupled laser arrays, where ideas from statistical physics and complex systems are used to phase-lock many lasers and to map hard optimization and many-body problems onto the dynamics of optical networks.

Laser cooling & trappingMagneto-optical trapsOptical dipole trapsElectromagnetically induced transparencyAtom interferometryCoupled laser networks

Ultra-cold atomic gasesLaser cooling and trapping of dilute atomic samples to microkelvin temperatures as a controlled medium for precision and many-body experiments.

Quantum degenerate gasesProducing and probing Bose-Einstein condensates and degenerate samples to explore coherence, collective modes, and quantum statistics.

Slow and stored lightUsing electromagnetically induced transparency and atomic coherence to slow, stop, and retrieve optical pulses for quantum memory and information.

Phase locking of laser arraysCoupling many lasers into a single coherent mode and exploiting their collective dynamics to solve optimization and statistical-physics problems.

Disorder and transport in cold atomsEngineering optical disorder and complex trap geometries to study localization, diffusion, and thermalization in controlled quantum systems.

02 / People