TY - JOUR

T1 - Multi-Skyrmions on AdS2 × S2, rational maps and popcorn transitions

AU - Canfora, Fabrizio

AU - Tallarita, Gianni

N1 - Funding Information:
This work has been funded by the FONDECYT grants 1160137, 3140122. The Centro de Estudios Científicos (CECs) is funded by the Chilean Government through the Centers of Excellence Base Financing Program of CONICYT.
Publisher Copyright:
© 2017 The Author(s)

PY - 2017/8

Y1 - 2017/8

N2 - By combining two different techniques to construct multi-soliton solutions of the (3+1)-dimensional Skyrme model, the generalized hedgehog and the rational map ansatz, we find multi-Skyrmion configurations in AdS2×S2. We construct Skyrmionic multi-layered configurations such that the total Baryon charge is the product of the number of kinks along the radial AdS2 direction and the degree of the rational map. We show that, for fixed total Baryon charge, as one increases the charge density on ∂(AdS2×S2), it becomes increasingly convenient energetically to have configurations with more peaks in the radial AdS2 direction but a lower degree of the rational map. This has a direct relation with the so-called holographic popcorn transitions in which, when the charge density is high, multi-layered configurations with low charge on each layer are favored over configurations with few layers but with higher charge on each layer. The case in which the geometry is M2×S2 can also be analyzed.

AB - By combining two different techniques to construct multi-soliton solutions of the (3+1)-dimensional Skyrme model, the generalized hedgehog and the rational map ansatz, we find multi-Skyrmion configurations in AdS2×S2. We construct Skyrmionic multi-layered configurations such that the total Baryon charge is the product of the number of kinks along the radial AdS2 direction and the degree of the rational map. We show that, for fixed total Baryon charge, as one increases the charge density on ∂(AdS2×S2), it becomes increasingly convenient energetically to have configurations with more peaks in the radial AdS2 direction but a lower degree of the rational map. This has a direct relation with the so-called holographic popcorn transitions in which, when the charge density is high, multi-layered configurations with low charge on each layer are favored over configurations with few layers but with higher charge on each layer. The case in which the geometry is M2×S2 can also be analyzed.

UR - http://www.scopus.com/inward/record.url?scp=85020467067&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysb.2017.06.001

DO - 10.1016/j.nuclphysb.2017.06.001

M3 - Article

AN - SCOPUS:85020467067

VL - 921

SP - 394

EP - 410

JO - Nuclear Physics B

JF - Nuclear Physics B

SN - 0550-3213

ER -