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cond-mat1997★ 32 cited
Effective Hamiltonian in the Problem of a "Central Spin" Coupled to a Spin Environment
I. S. Tupitsyn, N. V. Prokof'ev, P. C. E. Stamp
We consider here the problem of a "giant spin", with spin quantum number S>>1, interacting with a set of microscopic spins. Interactions between the microscopic spins are ignored.…
cond-mat1996★ 4 cited
Wigner Crystalization in the Lowest Landau Level for
V. A. Kashurnikov, N. V. Prokof'ev, B. V. Svistunov +1
By means of exact diagonalization we study the low-energy states of seven electrons in the lowest Landau level which are confined by a cylindric external potential modelling the re…