Quantum interference of superfluid 3He

被引：50

作者：

Simmonds, RW ^{[1
]}

Marchenkov, A ^{[1
]}

Hoskinson, E ^{[1
]}

Davis, JC ^{[1
]}

Packard, RE ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

来源：

NATURE | 2001年 / 412卷 / 6842期

关键词：

D O I：

10.1038/35083518

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Celebrated interference experiments have demonstrated the wave nature of light(1) and electrons(2), quantum interference being the manifestation of wave-particle duality. More recently, double-path interference experiments have also demonstrated the quantum-wave nature of beams of neutrons(3), atoms(4) and Bose-Einstein condensates(5). In condensed matter systems, double-path quantum interference is observed in the d.c. superconducting quantum interference device(6) (d.c. SQUID). Here we report a double-path quantum interference experiment involving a liquid: superfluid He-3. Using a geometry analogous to the superconducting d.c. SQUID, we control a quantum phase shift by using the rotation of the Earth, and rnd the classic interference pattern with periodicity determined by the He-3 quantum of circulation.

引用

页码：55 / 58

页数：5

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