Nonlocal Unitary Transformations on S=1 Antiferromagnetic Spin Chains

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概要

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• We propose nonlocal unitary transformations on S = l antiferromagnetic chains ina simple operator form. This is a generalization of the transformation recently 111troduced by Kennedy and Tasaki to clarify the hidden symmetry in the Haldane. //phase. The three operators (7' )' : iS } e"" ) appearing in these transformations are examined and some simple algebraic relations are shown to hold among T 7 and S 7. It isalso shown that three different forms of transformed Hamiltonians are transformedinto each other by local unitary transformations.['l antiferromagnetic spin chains

• 社団法人日本物理学会の論文
• 1991-12-15

著者

• 久保 健

  青山学院大 理工

• Kubo Kenn

  Institute Of Physics The University Of Tsukuba:max Planck Institut Fur Physik Und Astrophysik

• TAKADA Satoshi

  Institute of Physics,University of Tsukuba

• Takada Satoshi

  Institute Of Physics University Of Tsukuba

• Takada Satoshi

  Institute For Solid States Physics University Of Tokyo : Department Of Physics College Of General Education University Of Tokyo

• KUBO Kenn

  Department of Physics, Aoyama-Gakuin University

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