C Mocanu et al 2004 J. Phys.: Condens. Matter 16 6445 doi:10.1088/0953-8984/16/36/010
Finite-size bosonization and self-consistent harmonic approximation
C Mocanu, M Dzierzawa, P Schwab and U Eckern
Show affiliationsThe self-consistent harmonic approximation is extended in order to account for the existence of Klein factors in bosonized Hamiltonians. This is important for the study of finite systems where Klein factors cannot be ignored a priori. As a test we apply the method to interacting spinless fermions with modulated hopping. We calculate the finite-size corrections to the energy gap and the Drude weight and compare our results with the exact solution for special values of the model parameters.
- PACS
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71.15.Mb Density functional theory, local density approximation, gradient and other corrections
71.20.-b Electron density of states and band structure of crystalline solids
- Subjects
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Quantum gases, liquids and solids
- Dates
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Issue 36 (15 September 2004)
Received 21 April 2004
Published 27 August 2004
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Finite-size bosonization and self-consistent harmonic approximation
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