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Edge Magnetic Field in the xxz Spin-1/2 Chain | | Ian Affleck
; | | Date: |
21 Oct 1997 | | Subject: | Strongly Correlated Electrons | cond-mat.str-el hep-th | | Abstract: | The critical behavior associated with a transverse magnetic field applied at the edge of a semi-infinite xxz S=1/2 chain is calculated using field theory techniques. Contrary to a recent claim, we find that the long-time behavior is given by a renormalization group fixed point corresponding to an infinite field which polarizes the spin at the edge. The zero temperature entropy and position-dependent magnetization are calculated. | | Source: | arXiv, cond-mat/9710221 | | Services: | Forum | Review | PDF | Favorites | |
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