arXiv:1905.01087 · Physics Letters A

Exactly solvable chain of interacting electrons with correlated hopping and pairing

Igor N. Karnaukhov

Published Sep 9, 2019• 4 citations

arXiv HTML PDF

DOI: 10.1016/j.physleta.2019.125951

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arXiv:1905.01087 · Physics Letters A

Exactly solvable chain of interacting electrons with correlated hopping and pairing

Igor N. Karnaukhov

Published Sep 9, 2019• 4 citations

arXiv HTML PDF

DOI: 10.1016/j.physleta.2019.125951

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We present a class of exactly solvable models of correlated electrons. The models are defined in any dimension $d$ and consist of electron-hopping terms and local attractive interactions between electrons. For each even number of electrons less than or equal to $1/(d+1)$ -filling, we find the exact ground state in which all electrons form pairs of a certain type, and thus the models exhibit an electron-pair condensation.We present a class of exactly solvable models of correlated electrons. The models are defined in any dimension $d$ and consist of electron-hopping terms and local attractive interactions between electrons. For each even number of electrons less than or equal to $1/(d+1)$-filling, we find the exact ground state in which all electrons form pairs of a certain type, and thus the models exhibit an electron-pair condensation.

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We present a class of exactly solvable models of correlated electrons. The models are defined in any dimension

d

and consist of electron-hopping terms and local attractive interactions between electrons. For each even number of electrons less than or equal to

1/(d+1)

-filling, we find the exact ground state in which all electrons form pairs of a certain type, and thus the models exhibit an electron-pair condensation.