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math-ph2005★ 70 cited
Crystalline ground states for classical particles
Andras Suto
Pair interactions whose Fourier transform is nonnegative and vanishes above a wave number K_0 are shown to give rise to periodic and aperiodic infinite volume ground state configur…
math-ph2004★ 29 cited
Equivalence of Bose-Einstein condensation and symmetry breaking
Andras Suto
Based on a classic paper by Ginibre [Commun. Math. Phys. {\bf 8} 26 (1968)] it is shown that whenever Bogoliubov's approximation, that is, the replacement of a_0 and a_0^* by compl…