Exact ground states for interacting Kitaev chains

Jurriaan Wouters; Hosho Katsura; Dirk Schuricht

doi:10.1103/PhysRevB.98.155119

Exact ground states for interacting Kitaev chains

Jurriaan Wouters
, Hosho Katsura
, Dirk Schuricht

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

We introduce a frustration-free, one-dimensional model of spinless fermions with hopping, p-wave superconducting pairing and alternating chemical potentials. The model possesses two exactly degenerate ground states even for finite system sizes. We present analytical results for the strong Majorana zero modes, the phase diagram, and the topological order. Furthermore, we generalize our results to include interactions.

Original language	English
Article number	155119
Journal	Physical Review B
Volume	98
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevB.98.155119
Publication status	Published - 10 Oct 2018

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title = "Exact ground states for interacting Kitaev chains",

abstract = "We introduce a frustration-free, one-dimensional model of spinless fermions with hopping, p-wave superconducting pairing and alternating chemical potentials. The model possesses two exactly degenerate ground states even for finite system sizes. We present analytical results for the strong Majorana zero modes, the phase diagram, and the topological order. Furthermore, we generalize our results to include interactions.",

author = "Jurriaan Wouters and Hosho Katsura and Dirk Schuricht",

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N2 - We introduce a frustration-free, one-dimensional model of spinless fermions with hopping, p-wave superconducting pairing and alternating chemical potentials. The model possesses two exactly degenerate ground states even for finite system sizes. We present analytical results for the strong Majorana zero modes, the phase diagram, and the topological order. Furthermore, we generalize our results to include interactions.

AB - We introduce a frustration-free, one-dimensional model of spinless fermions with hopping, p-wave superconducting pairing and alternating chemical potentials. The model possesses two exactly degenerate ground states even for finite system sizes. We present analytical results for the strong Majorana zero modes, the phase diagram, and the topological order. Furthermore, we generalize our results to include interactions.

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DO - 10.1103/PhysRevB.98.155119

M3 - Article

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JO - Physical Review B

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Exact ground states for interacting Kitaev chains

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