Some non-abelian Q-balls

Safian, Alex M.; Coleman, Sidney; Axenides, Minos

doi:10.1016/0550-3213(88)90315-x

Cited by 77 publications

(70 citation statements)

References 9 publications

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“…Therefore, since this is the Noether charge under global gauge transformations, these solutions can actually be understood both as kinks and as non-abelian Q-balls [34].…”

Section: The Q-ball Kinks and Dyonic Giant Magnonsmentioning

confidence: 99%

“…This has the effect of restoring the SO(4) global symmetry associated to gauge transformations. In other words, the kinks carry SO(4) global charge and so are dyonic objects; namely, non-abelian Q-balls [34]. At the quantum level the continuous spectrum of kinks becomes quantized and the Qball states transform in non-trivial representations of SO(4).…”

Section: Introductionmentioning

confidence: 99%

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The semi-classical spectrum of solitons and giant magnons

Hollowood

Miramontes

2011

J. High Energ. Phys.

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In this note, we summarize recent progress in constructing and then semi-classically quantizing solitons, or non-abelian Q-balls, in the symmetric space sine-Gordon theories. We then consider the images of these solitons in the related constrained sigma model, which are the dyonic giant magnons on the string theory world-sheet. Focussing on the case of the symmetric space S 5 , we perform a semi-classical quantization of the solitons and magnons and show that both lead to Chern-Simons quantum mechanics on the internal moduli space which is a real Grassmannian SO(4)/SO(2) × SO(2) but-importantly-with a different coupling constant. Quantizing this system shows that both the Q-balls and magnons come in a tower of states transforming in symmetric representations of the SO(4) symmetry group; however, the former come in a finite tower whereas the latter come in the well-known infinite tower of dyonic giant magnons.

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“…Therefore, since this is the Noether charge under global gauge transformations, these solutions can actually be understood both as kinks and as non-abelian Q-balls [34].…”

Section: The Q-ball Kinks and Dyonic Giant Magnonsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The semi-classical spectrum of solitons and giant magnons

Hollowood

Miramontes

2011

J. High Energ. Phys.

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“…[1,2,3]. They arise due to the appearance of appropriate couplings in the scalar potential that effectively cause a Q number of scalar particles of mass m to form coherent bound states with binding energy E/Q < m. Although the general scaling property of their total energy E ≡ Q s (s < 1) receives both surface and volume contributions, there is a special class of such configurations in the large Q limit with s = 1 whose existence persists in the strict "thermodynamic limit" (V → ∞, E/Q ≡ const) [4,5].…”

Section: Introductionmentioning

confidence: 99%

Q-balls and the proton stability in supersymmetric theories

et al. 1999

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Abelian non-topological solitons with Baryon and/or Lepton quantum numbers naturally appear in the spectrum of the minimal supersymmetric standard model. They arise as a consequence of the existence of flat directions in the potential lifted by nonrenormalizable operators and SUSY breaking. We examine the conditions that these operators should satisfy in order to ensure proton stability and present a realistic string model which fulfils these requirements. We further identify a generic U(1) breaking term in the scalar potential and discuss its effect of rendering Q-balls unstable.

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“…Q-balls are nontopological solitons in theories with global Abelian [25] or non-Abelian [26] symmetries, and have been discussed in a variety of approaches with a wide range of applications in particle physics, cosmology, and astrophysics [27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Energy momentum tensor, and theD-term ofQ-balls

Mai¹,

Schweitzer²

2012

Phys. Rev. D

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We study the energy-momentum tensor of stable, meta-stable and unstable Q-balls in scalar field theories with U(1) symmetry. We calculate properties such as charge, mass, mean square radii and the constant d1 ("D-term") as functions of the phase space angular velocity ω. We discuss the limits when ω approaches the boundaries of the region in which solutions exist, and derive analytical results for the quantities in these limits. The central result of this work is the rigorous proof that d1 is strictly negative for all finite energy solutions in the Q-ball system. We also show that for Q-balls stability is a sufficient, but not necessary, condition for d1 to be negative.

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Some non-abelian Q-balls

Cited by 77 publications

References 9 publications

The semi-classical spectrum of solitons and giant magnons

The semi-classical spectrum of solitons and giant magnons

Q-balls and the proton stability in supersymmetric theories

Energy momentum tensor, and theD-term ofQ-balls

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