Spectral Properties of Interacting One-Dimensional Spinless Fermions

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概要

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• The spectral properties of the spinless fermion model with nearest-neighbor repulsive interactions on a one-dimensional lattice are investigated using the Bethe ansatz. Although its bulk quantities are exactly the same as those of the spin-1/2 XXZ chain, the difference in the statistics of particles causes substantial effects on spectral features, such as gapless points of dispersion relations and line shapes of spectral functions. In this Letter, we clarify the origin of the differences in spectral features between fermionic and bosonic systems in terms of Bethe ansatz solutions. We also confirm that the two-string solutions have considerable spectral weights in the high-energy regime.

• Physical Society of Japanの論文
• 2010-04-15

著者

• Sakai Kazumitsu

  Institute Of Physics University Of Tokyo

• Sakai Kazumitsu

  Institute of Physics, University of Tokyo, Meguro, Tokyo 153-8902, Japan

• Kohno Masanori

  International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan

• Arikawa Mitsuhiro

  Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan

• Sato Jun

  Nanotechnology Research Institute, AIST, Tsukuba, Ibaraki 305-8568, Japan

• Sato Jun

  Nanotechnology Research Institute (NRI), Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 2, Tsukuba, Ibaraki 305-8568, Japan

関連論文

• Free Energies and Critical Exponents of the A^_1,B^_n,C^_n and D^_n Face Models
• Excited State TBA and Functional Relations in Spinless Fermion Model
• Spectral Properties of Interacting One-Dimensional Spinless Fermions
• Current-Induced Exchange Length and Geometrically Constrained Magnetic Wall
• Current-Induced Microwave Excitation of a Domain Wall Pinned in a Magnetic Wire with Bi-Axial Anisotropy

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