Penning-Malmberg and Minimum-B Trap Compatibility: the Advantages of Higher-Order Multipole Traps

摘要

The ATHENA and ATRAP collaborations have recently created large numbers of un-trapped anti-hydrogen atoms. The most commonly suggested scheme for trapping the anti-hydrogen is to use a Minimum-B trap. Unfortunately, the Minimum-B fields are very likely to destroy the confinement of the anti-hydrogen constituents; the positrons and anti-protons, which are themselves held in double-well Penning-Malmberg traps. The reasons for the loss of confinement, and modifications to the Minimum-B trap that may alleviate this problem, are discussed in this paper.