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Topological defects...
Topological defects in nonlocal field theories
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- Buoninfante, Luca, 1992- (author)
- Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),Nordita SU; Stockholm Univ, Hannes Alfvens Vag 12, SE-10691 Stockholm, Sweden.
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- Miyashita, Yuichi (author)
- Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan.
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- Yamaguchi, Masahide (author)
- Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan.
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(creator_code:org_t)
- Springer Nature, 2022
- 2022
- English.
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In: Journal of High Energy Physics (JHEP). - : Springer Nature. - 1126-6708 .- 1029-8479. ; :11
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https://doi.org/10.1...
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Abstract
Subject headings
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- In this paper we study for the first time topological defects in the context of nonlocal field theories in which Lagrangians contain infinite-order differential operators. In particular, we analyze domain walls. Despite the complexity of non-linear infinite-order differential equations, we are able to find an approximate analytic solution. We first determine the asymptotic behavior of the nonlocal domain wall close to the vacua. Then, we find a linearized nonlocal solution by perturbing around the well-known local 'kink', and show that it is consistent with the asymptotic behavior. We develop a formalism to study the solution around the origin, and use it to verify the validity of the linearized solution. We find that nonlocality makes the width of the domain wall thinner, and the energy per unit area smaller as compared to the local case. For the specific domain wall solution under investigation we derive a theoretical constraint on the energy scale of nonlocality which must be larger than the corresponding symmetry-breaking scale. We also briefly comment on other topological defects like string and monopole.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Solitons Monopoles and Instantons
- Discrete Symmetries
- Nonperturbative Effects
- String Field Theory
Publication and Content Type
- ref (subject category)
- art (subject category)
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