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The low-energy states and directional long-range order in the two-dimensional quantum compass model - MaRDI portal

The low-energy states and directional long-range order in the two-dimensional quantum compass model (Q3579930)

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The low-energy states and directional long-range order in the two-dimensional quantum compass model
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    The low-energy states and directional long-range order in the two-dimensional quantum compass model (English)
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    11 August 2010
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    perturbation theories for operators and differential equations
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    magnetic materials
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    variational methods for eigenvalues of operators
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    eigenvalue problems
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    commutation relations and statistics
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    eigenvalues
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    singular values
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    eigenvectors
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