### Abstract

In the superfluid ^{3}He A-phase, the edge mass current which accompanies surface Andreev bound states flows due to topological features. We discuss the relation between the angular momentum by the edge mass current and the macroscopic intrinsic angular momentum L = N/2 by the Cooper pairs with aligned angular momenta, based on the quasi-classical theory. At the low temperature limit, half of the edge mass current from the bound state is canceled by that from the continuum state. Then, the magnitude of the total angular momentum is L = N/2 which corresponds to the macroscopic intrinsic angular momentum of N particles. The net angular momentum decreases monotonously toward zero at the transition temperature. However, that is larger than the macroscopic intrinsic angular momentum expected from the same behavior of the superfluid density in middle temperatures.

Original language | English |
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Article number | 012076 |

Journal | Journal of Physics: Conference Series |

Volume | 400 |

Issue number | PART 1 |

DOIs | |

Publication status | Published - Jan 1 2012 |

Event | 26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China Duration: Aug 10 2011 → Aug 17 2011 |

### ASJC Scopus subject areas

- Physics and Astronomy(all)

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## Cite this

^{3}He A-phase.

*Journal of Physics: Conference Series*,

*400*(PART 1), [012076]. https://doi.org/10.1088/1742-6596/400/1/012076