A cylindrically symmetric magnetic trap for compact Bose-Einstein condensate atom interferometer gyroscopes

Area of Science:

• Atomic physics
• Quantum optics
• Interferometry

Background:

• Bose-Einstein condensates (BECs) are crucial for precision measurements.
• Atom interferometers require stable and controllable atom trapping.
• Existing traps may not be suitable for compact, gravity-compensated applications.

Purpose of the Study:

• To present a novel time-orbiting potential trap design for BEC atom interferometers.
• To demonstrate its suitability for compact atom interferometer-based gyroscopes.
• To characterize the trap's confinement properties and thermal behavior.

Main Methods:

• Fabrication of a six-coil trap using photolithographic techniques within a 1 cubic inch volume.
• Experimental characterization of trapping frequencies and thermal properties.
• Analysis of the trap's cylindrical symmetry and confinement strength.

Main Results:

• The trap provides weak, cylindrically symmetric confinement for BECs.
• It offers essential support against gravitational effects.
• Scalable trapping frequencies ranging from 1 Hz to 8 Hz were achieved in the symmetry plane.

Conclusions:

• The developed time-orbiting potential trap is a promising technology for compact atom interferometer gyroscopes.
• Its design offers precise control over atom confinement and stability.
• This advancement facilitates the development of portable and high-precision inertial sensors.