Polarized alkali vapor with minute-long transverse spin-relaxation time

Abstract

We demonstrate lifetimes of atomic populations and coherences in excess of 60 seconds in alkali vapor cells with inner walls coated with an alkene material. This represents two orders of magnitude improvement over the best paraffin coatings. Such anti-relaxation properties will likely lead to substantial improvements in atomic clocks, magnetometers, quantum memory, and enable sensitive studies of collisional effects and precision measurements of fundamental symmetries.

5 pages, 5 figures

References in corpus (7)

• Experimental demonstration of quantum memory for light
• Improved limit on the permanent electric dipole moment of 199Hg
• Quantum noise limited and entanglement-assisted magnetometry
• A low-noise ferrite magnetic shield
• High quality anti-relaxation coating material for alkali atom vapor cells
• Synchronous Optical Pumping of Quantum Revival Beats for Atomic Magnetometery
• Controlling atomic vapor density in paraffin-coated cells using light-induced atomic desorption

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