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Informationen zum Autor Ladislav Šamaj is a Research Professor within the Institute of Physics at the Slovak Academy of Sciences and teaches statistical mechanics of integrable many-body systems at the Institute of Physics and the Comenius University in Bratislava. His research specialises in Coulomb fluids, classical and quantum, two-dimensional and higher-dimensional. He contributed to the field of equilibrium statistical mechanics by solving exactly the two-dimensional Coulomb gas, charge-symmetric and with a charge asymmetry. Zoltán Bajnok is a Research Professor at the MTA Lendület Holographic QFT Group of the Wigner Research Centre for Physics in Budapest, where he specialises in integrable models with a focus on finite size effects. He contributed to the analysis of the exact spectrum of the boundary sine-Gordon theory, and successfully applied the developed 2D integrable techniques to calculate the scaling dimensions of gauge invariant operators in four-dimensional quantum field theories. Klappentext Including topics not traditionally covered, such as (1+1)-dimensional QFT, this book considers a wide range of models and their applications.This book considers a variety of models of integrable systems and demonstrates a number of situations to which they can be applied. It includes topics not traditionally covered in literature, such as (1+1)-dimensional QFT. Suitable for graduate students and researchers in statistical physics, quantum mechanics and mathematical and theoretical physics. Inhaltsverzeichnis Preface; Part I. Spinless Bose and Fermi Gases: 1. Particles with nearest-neighbour interactions: Bethe ansatz and the ground state; 2. Bethe ansatz: zero-temperature thermodynamics and excitations; 3. Bethe ansatz: finite-temperature thermodynamics; 4. Particles with inverse-square interactions; Part II. Quantum Inverse Scattering Method: 5. QISM: Yang-Baxter equation; 6. QISM: transfer matrix and its diagonalization; 7. QISM: treatment of boundary conditions; 8. Nested Bethe ansatz for spin-1/2 fermions with delta interactions; 9. Thermodynamics of spin-1/2 fermions with delta interactions; Part III. Quantum Spin Chains: 10. Quantum Ising chain in a transverse field; 11. XXZ Heisenberg chain: Bethe ansatz and the ground state; 12. XXZ Heisenberg chain: ground state in the presence of magnetic field; 13. XXZ Heisenberg chain: excited states; 14. XXX Heisenberg chain: thermodynamics with strings; 15. XXZ Heisenberg chain: thermodynamics without strings; 16. XYZ Heisenberg chain; 17. Integrable isotropic chains with arbitrary spin; Part IV. Strongly Correlated Electrons: 18. Hubbard model; 19. Kondo effect; 20. Luttinger many-fermion model; 21. Integrable BCS superconductors; Part V. Sine-Gordon Model: 22. Classical sine-Gordon theory; 23. Conformal quantization; 24. Lagrangian quantization; 25. Bootstrap quantization; 26. UV-IR relation; 27. Exact finite volume description from XXZ; 28. Two-dimensional Coulomb gas; Appendix A. Spin and spin operators on chain; Appendix B. Elliptic functions; References; Index....
