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Abstract: We study the Kitaev model on a ladder network and find the complete spectrumof the Hamiltonian in closed form. Closed and manageable forms for alleigenvalues and eigenvectors, allow us to calculate the partition function andaverages of non-local operators in addition to the reduced density matrices ofdifferent subsystems at arbitrary temperatures. It is also briefly discussedhow these considerations can be generalized to more general lattices, includingthree-leg ladders and two dimensional square lattices.



Autor: Vahid Karimipour

Fuente: https://arxiv.org/



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