Nature of carriers in one-dimensional correlated electron systems

Hiroki Tsuchiura; Masao Ogata; Yukio Tanaka; Satoshi Kashiwaya

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Nature of carriers in one-dimensional correlated electron systems

Hiroki Tsuchiura·Masao Ogata·Yukio Tanaka·Satoshi Kashiwaya

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Abstract

Electron densities at the edge site in one-dimensional Hubbard model and t-J model are studied by using the Bethe ansatz solutions and exact diagonalization method. It is found that the boundary is electron-attractive, or equivalently hole-repulsive, near half-filling. We propose a new criterion to determine whether the carriers in a strongly correlated system are electron-like or hole-like depending on the electronic behavior at the boundary.

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Hiroki Tsuchiura, Masao Ogata, Yukio Tanaka, Satoshi Kashiwaya. 2003-02-03. Nature of carriers in one-dimensional correlated electron systems. https://arxiv.org/abs/cond-mat/0302031

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