Quantum information with cold atoms and non-classical light
Professor (ICREA), ERC Starting Grant Award
We investigate quantum optical and quantum information processes with cold atoms and non-classical light sources, especially quantum processes arising from light-atom interactions. Our main activities are in two related areas: manipulation of cold atomic ensembles, including spin squeezing and generation of atom-light entanglement, and generation of squeezed, entangled, and single-photon states of light at atomic resonance wavelengths.
The group operates the ICFO atom trap, a double-MOT plus optical dipole trap for rubidium 87 atoms. We routinely cool atoms to 50 micro-Kelvin.
We have single frequency lasers at wavelengths from 397,5 nm to 1030 nm, with powers from 50 mW to 25 W. High-resolution optical spectrometer for the 775-805 nm range. Quantum-noise-limited detectors for microsecond-duration NIR pulses, 13 GHz spectrum analyzer.