by Wong Wing Hung. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1993. / Includes bibliographical references (leaves [70]). / Acknowledgments --- p.iii / Abstract --- p.iv / Chapter Chapter 1 --- Introduction --- p.1 / Chapter Chapter 2 --- The Coupled-cluster Method --- p.3 / Chapter 2.1 --- Background / Chapter 2.2 --- Basic Idea of the Method / Chapter 2.3 --- Discussion / Chapter Chapter 3 --- Spin-one Heisenberg Antiferromagnet --- p.8 / Paper enclosed： Coupled-cluster / approximation for spin-one / Heisenberg antiferromagnet / Chapter Chapter 4 --- Easy-plane Spin-one Antif erromagnet --- p.10 / Paper enclosed： Coupled-cluster / approximation for the easy-plane / spin-one antif erromagnet / Chapter Chapter 5 --- Conclusion --- p.11 / References --- p.12 / Appendix --- p.13

by Lee Kai Cheung. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1993. / Includes bibliographical references. / Acknowledgements --- p.II / Abstract --- p.III / Chapter Chapter 1 --- Introduction --- p.1 / Chapter Chapter 2 --- Theory --- p.7 / Chapter Chapter 3 --- Application of the Connected-Moments Expansion to the S=l/2 Heisenberg Antiferromagnet Paper I --- p.16 / Chapter Chapter 4 --- Application of the Connected-Moments Expansion to the Half-filled Hubbard Model Paper II --- p.18 / Chapter Chapter 5 --- Conclusion --- p.20 / Appendix I --- p.21 / Appendix II --- p.29 / References --- p.37

acase@tulane.edu / 1 / Jinyu Liu

Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2006. / Includes bibliographical references (leaves [101]-106). Also available in electronic version.

Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2002. / Includes bibliographical references (leaves 48). Also available in electronic version. Access restricted to campus users.

Thesis (Ph. D.)--Florida State University, 2005. / Advisor: Dr. Kun Yang, Florida State University, College of Arts and Sciences, Dept. of Physics. Title and description from dissertation home page (viewed Sept. 19, 2005). Document formatted into pages; contains viii, 69 pages. Includes bibliographical references.

No description available.

Ho Lai-yin. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves 53-56). / Abstracts in English and Chinese. / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Peierls Transition --- p.3 / Chapter 2.1 --- The Start of the Idea --- p.3 / Chapter 2.2 --- Peierls Transition in Second Quantization Representation --- p.5 / Chapter 2.3 --- Effect of Peierls Transition on an Antiferromagnetic Chain --- p.6 / Chapter 2.4 --- Evidence of Spin-Peierls Transition --- p.9 / Chapter 2.5 --- Materials with Spin-Peierls Transition --- p.11 / Chapter 3 --- Mean Field Calculations --- p.15 / Chapter 3.1 --- Jordan-Wigner Transformation --- p.15 / Chapter 3.2 --- Diagonalization of the XY Model --- p.17 / Chapter 3.3 --- Hartree-Fock Approximation --- p.19 / Chapter 3.4 --- Quantum Effect of Lattice --- p.21 / Chapter 4 --- Bosonization --- p.25 / Chapter 4.1 --- Continuum Limit --- p.25 / Chapter 4.2 --- Bosonization --- p.28 / Chapter 4.3 --- Relaxation of the Restriction on Lattice Distortion --- p.36 / Chapter 4.4 --- More Discussion on the Phase Hamiltonian --- p.39 / Chapter 4.5 --- Limitation of the Bosonization Technique and the Phase Hamil- tonian Approach --- p.41 / Chapter 5 --- Effect of Doping Impurities on Spin-Peierls Model --- p.43 / Chapter 5.1 --- Experimental Results --- p.43 / Chapter 5.2 --- Analytical Calculations of Doping Effect --- p.44 / Chapter 5.3 --- Criticism on the Calculations --- p.50 / Chapter 6 --- Summary and Conclusions --- p.52 / Bibliography --- p.53 / Chapter A --- Random-Phase Approximation --- p.57

Hoi-Yin Shik. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2002. / Includes bibliographical references (leaves 92-94). / Text in English; abstracts in English and Chinese. / Hoi-Yin Shik. / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- The Heisenberg Model --- p.1 / Chapter 1.2 --- Exactly Soluble Model --- p.3 / Chapter 1.3 --- This Project --- p.4 / Chapter 2 --- Spin-1 Net Spin Models --- p.6 / Chapter 2.1 --- Solution for the Four Spin Plaquette --- p.8 / Chapter 2.2 --- The Ground State and First Excited State Properties --- p.17 / Chapter 2.2.1 --- Spin Ladder Model --- p.18 / Chapter 2.2.2 --- Double Layer Model --- p.24 / Chapter 2.3 --- Excitation Spectrum for L Goes from One to Infinity --- p.27 / Chapter 2.4 --- General Spin S --- p.28 / Chapter 3 --- Constructing Exactly Soluble Quantum Spin Models --- p.29 / Chapter 3.1 --- Spin-1 Bond Operators --- p.29 / Chapter 3.1.1 --- Net Spin Ladder --- p.30 / Chapter 3.1.2 --- Spin Layer --- p.33 / Chapter 3.2 --- Other Two-dimensional Exactly Soluble Model --- p.35 / Chapter 3.3 --- Three-dimensional Model --- p.38 / Chapter 3.4 --- Spin-1 bond Operators --- p.56 / Chapter 3.5 --- Three-dimensional Spin-1 Model --- p.65 / Chapter 3.5.1 --- Other Exact Soluble Spin-1 Models --- p.68 / Chapter 3.6 --- General Spin-S --- p.68 / Chapter 4 --- Low Lying Excitations for the Net Spin Ladder --- p.72 / Chapter 4.1 --- Solutions of K-Rung Ladder --- p.74 / Chapter 4.1.1 --- K = 1 --- p.74 / Chapter 4.1.2 --- K = 2 --- p.75 / Chapter 4.1.3 --- K = 3 --- p.76 / Chapter 4.1.4 --- K = 4 --- p.78 / Chapter 4.1.5 --- K > 4 --- p.80 / Chapter 4.2 --- The Critical Point --- p.81 / Chapter 5 --- Conclusion --- p.90 / Bibliography --- p.92 / Chapter A --- The matrix represention of different Hamiltonians --- p.95 / Chapter A.1 --- p.95 / Chapter A.2 --- p.97 / Chapter A.3 --- p.99

Thesis. 1977. Ph.D.--Massachusetts Institute of Technology. Dept. of Physics. / M̲i̲c̲ṟo̲f̲i̲c̲ẖe̲ c̲o̲p̲y̲ a̲v̲a̲i̲ḻa̲ḇḻe̲ i̲ṉ A̲ṟc̲ẖi̲v̲e̲s̲ a̲ṉḏ S̲c̲i̲e̲ṉc̲e̲. / Includes bibliographical references. / Ph.D.