Study on Cooling of Positronium for Bose-Einstein Condensation

Abstract

A new method of cooling positronium down is proposed to realize Bose-Einstein condensation of positronium. We perform detail studies about three processes (1) thermalization processes between positronium and silica walls of a cavity, (2) Ps-Ps scatterings and (3) Laser cooling. The thermalization process is shown to be not sufficient for BEC. Ps-Ps collision is also shown to make a big effect on the cooling performance. We combine both methods and establish an efficient cooling for BEC. We also propose a new optical laser system for the cooling.

References in corpus (1)

• First test of $O({\alpha }^2)$ correction of the orthopositronium decay rate

Cited by in corpus (5)

• Toward inertial sensing with a monochromatic $2^{3}S$ positronium beam
• Laser cooling of positronium
• Ubiquitous diffraction resonances in positronium formation from fullerenes
• Development of an optimal laser for chirp cooling of positronium based on chirped pulse-train generator
• Molecular size effects on diffraction resonances in positronium formation from fullerenes