37 citations · 37 across the 1 of their papers we have counts for
3 papers
cond-mat.str-el2001★ 37 cited
Mott-Superfluid transition in bosonic ladders
P. Donohue, T. Giamarchi
We show that in a commensurate bosonic ladder, a quantum phase transition occurs between a Mott insulator and a superfluid when interchain hopping increases. We analyse the propert…
cond-mat.str-el2000
Spinless fermions ladders at half filling
P. Donohue, M. Tsuchiizu, T. Giamarchi +1
We study a half filled ladder of spinless fermions. We show that contrarily to a single chain, the ladder becomes a Mott insulator for arbitrarily small repulsive interactions. We…
cond-mat.str-el2000
Commensurate-incommensurate transition in two-coupled chains of nearly half-filled electrons
M. Tsuchiizu, P. Donohue, Y. Suzumura +1
We investigate the physical properties of two coupled chains of electrons, with a nearly half-filled band, as a function of the interchain hopping t_\perp and the doping. We show t…