Question: Discuss the similarity and differences between a vortexanti-vortex pair and a pair of and . How does the energy of creating a single

Discuss the similarity and differences between a vortex–anti-vortex pair and a pair of ↑↓ and ↓↑. How does the energy of creating a single ↑↓ perturbation scale with system size? How does the energy of a pair ↑↓ and ↓↑ scale with the distance between the two sets of antiparallel spins?

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