DECAY KINETICS AND BOSE-CONDENSATION IN A GAS OF SPIN-POLARIZED TRIPLET HELIUM

被引：86

作者：

SHLYAPNIKOV, GV ^{[1
]}

WALRAVEN, JTM ^{[1
]}

RAHMANOV, UM ^{[1
]}

REYNOLDS, MW ^{[1
]}

机构：

[1] IV KURCHATOV ATOM ENERGY INST,RUSSIAN RES CTR,MOSCOW 123182,RUSSIA

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.73.3247

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider the decay kinetics of a trapped spin-polarized gas of metastable triplet helium He4(2S3 at ultralow temperatures. The sample lifetime is found to be determined by spin relaxation and Penning ionization, both induced by spin-dipole interaction in pair collisions. The rates of these processes are calculated. The Penning ionization proves to be 5 orders of magnitude slower than in the unpolarized case. The results indicate that spin-polarized triplet helium is a promising candidate for Bose-Einstein condensation. © 1994 The American Physical Society.

引用

页码：3247 / 3250

页数：4

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