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- Lubcke, M., et al.
(författare)
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Twisted plasma column
- 2002
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Ingår i: Phys. Lett.. ; B534, s. 195-200
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Tidskriftsartikel (refereegranskat)abstract
- We inspect a particular gauge field theory model that describes the properties of a variety of physical systems, including a charge neutral two-component plasma, a Gross-Pitaevskii functional of two charged Cooper pair condensates, and a limiting case of the bosonic sector in the Salam-Weinberg model. It has been argued that this field theory model also admits stable knot-like solitons. Here we produce numerical evidence in support for the existence of these solitons, by considering stable axis-symmetric solutions that can be thought of as straight twisted vortex lines clamped at the two ends. We compute the energy of these solutions as a function of the amount of twist per unit length. The result can be described in terms of a energy spectral function. We find that this spectral function acquires a minimum which corresponds to a nontrivial twist per unit length, strongly suggesting that the model indeed supports stable toroidal solitons.
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- Miettinen, M, et al.
(författare)
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Aspects of duality and confining strings
- 2000
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 474:3-4, s. 303-308
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Tidskriftsartikel (refereegranskat)abstract
- We inspect the energy spectrum of a confining string, at the classical level in an effective field theory model, The spectrum can be characterized by a spectral function, and twisting and bending of the string is manifested by the invariance of this funct
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