Core Phase Transitions for Embedded Topological Defects
نویسندگان
چکیده
Vortices in superfluid 3He-B have been observed to undergo a core transition. We discuss the analog phenomenon in relativistic field theories which admit embedded global domain walls, vortices and monopoles with a core phase structure. They are present in scalar field theories with approximate global symmetries which are broken both spontaneously and in parts explicitly. For a particular range of parameters their symmetric core exhibits an instability and decays into the nonsymmetric phase. 1 Talk presented at the ”Formation of Topological Defects” ESF Network Meeting, Grenoble, France, September 1997. E-mail address: [email protected] E-mail address: [email protected]
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