Excitation Spectrum Gap and Spin-Wave Stiffness of XXZ Heisenberg Chains: Global Renormalization-Group Calculation
نویسندگان
چکیده
Ozan S. Sarıyer, A. Nihat Berker and Michael Hinczewski Department of Physics, Istanbul Technical University, Maslak 34469, Istanbul, Turkey, College of Sciences and Arts, Koç University, Sarıyer 34450, Istanbul, Turkey, Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, U.S.A., and Feza Gürsey Research Institute, TÜBİTAK Bosphorus University, Çengelköy 34684, Istanbul, Turkey
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