Atomtronic Matter-Wave Optics

Abstract

Matterwaves made up of ultra-cold quantum-degenerate atoms have enabled the creation of tools having unprecedented sensitivity and precision in measuring gravity, rotation or magnetic fields. Applications range from gravitational wave detection and tests of Einstein's equivalence principle to inertial sensing for navigation and gravitational gradient sensing for oil and mineral exploration. In this letter, we introduce atom-optics as a novel tool of manipulating matterwaves in ring-shaped coherent waveguides. We collimate and focus matterwaves derived from Bose-Einstein Condensates (BECs) and ultra-cold thermal atoms in ring-shaped time-averaged adiabatic potentials. We demonstrate `delta-kick cooling' of BECs, reducing their expansion energies by a factor of 34. The atomtronic waveguide ring has a radius of only $485\mu m$, compared to other state-of-the-art experiments requiring zero gravity or chambers of ten meter. This level of control with extremely reduced spatial requirements is an important step towards atomtronic quantum sensors.

4 figures.5 pages, (resubmitted due to misspelled author name)

References in corpus (8)

• Observation of persistent flow of a Bose-Einstein condensate in a toroidal trap
• Interferometry with Bose-Einstein Condensates in Microgravity
• An Atomic Gravitational Wave Interferometric Sensor (AGIS)
• Matter wave lensing to picokelvin temperatures
• Quantum Tests of the Einstein Equivalence Principle with the STE-QUEST Space Mission
• A large magnetic storage ring for Bose-Einstein condensates
• Hypersonic Bose-Einstein Condensates in Accelerator Rings
• Blue-detuned optical ring trap for Bose-Einstein condensates based on conical refraction

Cited by in corpus (1)

• Focusing Atom Laser Beams