| 研究実績の概要 |
We have discussed what happens when a field that receives an Aharonov-Bohm (AB) phase develops a vacuum expectation value (VEV), using the
example of an Alice string in a U(1)×SU(2) gauge theory coupled with complex triplet scalar fields. We have introduced scalar fields belonging
to the doublet representation of SU(2), charged or neutral under the U(1) gauge symmetry, that receives an AB phase around the Alice string.
When the doublet develops a VEV, the Alice string becomes a global string in the absence of the interaction depending on the relative phase
between the doublet and triplet, while in the presence of such an interaction the Alice string is confined by a soliton or domain wall, and
therefore the spatial rotation around the string is spontaneously broken.
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