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math-ph2000★ 8 cited
Interfaces and droplets in quantum lattice models
Bruno Nachtergaele
This paper is a short review of recent results on interface states in the Falicov-Kimball model and the ferromagnetic XXZ Heisenberg model. More specifically, we discuss the follow…
math-ph2000★ 21 cited
Droplet States in the XXZ Heisenberg Chain
Bruno Nachtergaele, Shannon Starr
We consider the ground states of the ferromagnetic XXZ chain with spin up boundary conditions in sectors with a fixed number of down spins. This forces the existence of a droplet o…