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cond-mat.str-el2002
Fibonacci-Hubbard Chain at Zero and Finite Temperatures
Sanjay Gupta, Shreekantha Sil, Bibhas Bhattacharyya
We have studied finite-sized single band Hubbard chains with Fibonacci modulation for half filling within a mean field approximation. The ground state properties, together with the…
cond-mat.str-el1998
Bound-states in dimerized and frustrated Heisenberg Chains
G. Bouzerar, S. Sil
Using the Bond Operator Technique (BOT), we have studied the low energy excitationspectrum of a frustrated dimerized antiferromagnetic Heisenberg chain. In particular, we have comp…