Short Name: CAL

Facility Description

The Cold Atom Laboratory (CAL) allows researchers to study the fundamental behavior and quantum characteristics of atoms by enabling clouds of atoms that are chilled to nearly one billionth of a degree above absolute zero, where their motion is very very slow. At these ultra-cold temperatures, the wave nature of atoms becomes more pronounced and most atoms share the same macroscopic wave function.

CAL uses laser cooling techniques to achieve the ultra-cold temperatures, which are not achievable on Earth. CAL is capable of trapping both Rubidium (87 Rb) and Potassium (40 K or 41 K) atoms. A Feshbach coil enables precise control of atomic interactions in certain states. Bragg beams enable a sensitive way to probe condensate properties, and atom interferometry. Delta-kick cooling provides access to a new range of effective temperatures and enables shaping and focusing of atomic clouds. The combination of three atomic species, microwave state selection, and adiabatic rapid passage enables 24 possible quantum states with an infinite number of mixtures and superpositions.

Availability: Please contact the facility manager

ISS Environment: Internal

Owner: NASA

Operator/Implementation Partner:
NASA

Developer(s):
NASA Jet Propulsion Lab

Facility Manager:
Robert Thompson,
NASA Jet Propulsion Lab

Manager Email:
robert.j.thompson@jpl.nasa.gov

Parent Facility: EXPRESS Rack

Child Facility:

Sponsoring Space Agency: NASA

Equipment Category: Capability

Additional Information:

CAL on NASA’s SSRE
Cold Atom Lab – What We Do
CAL information from NASA’s Jet Propulsion Laboratory

iss061e145487 (Jan. 28, 2020) --- NASA astronaut and Expedition 61 Flight Engineer Jessica Koch works on the Cold Atom Lab (CAL) swapping and cleaning hardware inside the quantum research device. The CAL enables research into the quantum effects of gases chilled to nearly absolute zero, which is colder than the average temperature of the universe.