225 citations · 1.1k across the 50 of their papers we have counts for
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Discrete Breathers in Anisotropic Ferromagnetic Spin Chains
J. M. Speight, P. M. Sutcliffe
We prove the existence of discrete breathers (time-periodic, spatially localized solutions) in weakly coupled ferromagnetic spin chains with easy-axis anisotropy. Using numerical m…
The deformed conifold as a geometry on the space of unit charge CP^1 lumps
J. M. Speight
The strong structural similarity between the deformed conifold of Candelas and de la Ossa (a noncompact Calabi-Yau manifold) and the moduli space of unit charge CP^1 lumps equipped…
Instability of breathers in the topological discrete sine-Gordon system
J. M. Speight
It is demonstrated that the breather solutions recently discovered in the weakly coupled topological discrete sine-Gordon system are spectrally unstable. This is in contrast with m…
The L^2 geometry of spaces of harmonic maps S^2 -> S^2 and RP^2 -> RP^2
J. M. Speight
Harmonic maps from S^2 to S^2 are all weakly conformal, and so are represented by rational maps. This paper presents a study of the L^2 metric gamma on M_n, the space of degree n h…