The anomaly in the central charge of the supersymmetric kink from dimensional regularization and reduction Export

@article{citeulike:3733110, abstract = {We show that the anomalous contribution to the central charge of the (1+1)-dimensional N=1 supersymmetric kink that is required for BPS saturation at the quantum level can be linked to an analogous term in the extra momentum operator of a (2+1)-dimensional kink domain wall with spontaneous parity violation and chiral domain wall fermions. In the quantization of the domain wall, BPS saturation is preserved by nonvanishing quantum corrections to the momentum density in the extra space dimension. Dimensional reduction from 2+1 to 1+1 dimensions preserves the unbroken N=1/2 supersymmetry and turns these parity-violating contributions into the anomaly of the central charge of the supersymmetric kink. On the other hand, standard dimensional regularization by dimensional reduction from 1 to (1-[epsilon]) spatial dimensions, which also preserves supersymmetry, obtains the anomaly from an evanescent counterterm. We identify the anomaly in the ordinary central charge as an anomalous contribution to the divergence of the conformal central-charge current.}, author = {Rebhan, A. and van Nieuwenhuizen, P. and Wimmer, R.}, citeulike-article-id = {3733110}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/S0550-3213(02)00965-3}, citeulike-linkout-1 = {http://www.sciencedirect.com/science/article/B6TVC-475JVFF-1/2/8db1797b607e4d8efdf2b7264aaba7c5}, day = {6}, doi = {10.1016/S0550-3213(02)00965-3}, issn = {0550-3213}, journal = {Nuclear Physics B}, keywords = {anomalies, kinks, solitons, supersymmetry}, month = {January}, number = {1-2}, pages = {174--188}, posted-at = {2008-12-01 16:47:24}, priority = {2}, title = {The anomaly in the central charge of the supersymmetric kink from dimensional regularization and reduction}, url = {http://dx.doi.org/10.1016/S0550-3213(02)00965-3}, volume = {648}, year = {2003} }

TY - JOUR ID - citeulike:3733110 L3 - citeulike-article-id:3733110 N2 - We show that the anomalous contribution to the central charge of the (1+1)-dimensional N=1 supersymmetric kink that is required for BPS saturation at the quantum level can be linked to an analogous term in the extra momentum operator of a (2+1)-dimensional kink domain wall with spontaneous parity violation and chiral domain wall fermions. In the quantization of the domain wall, BPS saturation is preserved by nonvanishing quantum corrections to the momentum density in the extra space dimension. Dimensional reduction from 2+1 to 1+1 dimensions preserves the unbroken N=1/2 supersymmetry and turns these parity-violating contributions into the anomaly of the central charge of the supersymmetric kink. On the other hand, standard dimensional regularization by dimensional reduction from 1 to (1-[epsilon]) spatial dimensions, which also preserves supersymmetry, obtains the anomaly from an evanescent counterterm. We identify the anomaly in the ordinary central charge as an anomalous contribution to the divergence of the conformal central-charge current. IS - 1-2 JF - Nuclear Physics B SN - 0550-3213 EP - 188 TI - The anomaly in the central charge of the supersymmetric kink from dimensional regularization and reduction VL - 648 SP - 174 KW - anomalies KW - kinks KW - solitons KW - supersymmetry AU - Rebhan, A AU - van Nieuwenhuizen, P AU - Wimmer, R PY - 2003/01/06/ UR - http://dx.doi.org/10.1016/S0550-3213(02)00965-3 ER -