02054nam 2200421z- 450 9910346892003321202102121000029200(CKB)4920000000101602(oapen)https://directory.doabooks.org/handle/20.500.12854/61688(oapen)doab61688(EXLCZ)99492000000010160220202102d2012 |y 0gerurmn|---annantxtrdacontentcrdamediacrrdacarrierUntersuchung des elektronischen Oberflächenzustands von Ag-Inseln auf supraleitendem Niob(110)KIT Scientific Publishing20121 online resource (V, 113, XIV p. p.)Experimental Condensed Matter Physics / Karlsruher Institut für Technologie, Physikalisches Institut3-86644-898-8 Im Rahmen dieser Arbeit wurden Ag-Inseln auf supraleitendem Niob(110) mit Hilfe der Rastertunnelmikroskopie untersucht. Die Ag-Inseln weisen einen elektronischen Oberflächenzustand auf, welcher durch die mechanische Verspannung modifiziert wird und ein Abbilden der lokalen mechanischen Verspannung bzw. Dehnung auf Nanometerskala ermöglicht. Es wurde weiterhin untersucht, inwiefern das zweidimensionale Elektronengas supraleitende Eigenschaften aufgrund des Proximity-Effekts erhält.Untersuchung des elektronischen Oberflächenzustands von Ag-Inseln auf supraleitendem NiobUntersuchung des elektronischen Oberflächenzustands von Ag-Inseln auf supraleitendem NiobPhysicsbicsscmechanische VerspannungOberflächenzustandProximity EffektRastertunnelmikroskopieSupraleitungPhysicsTomanic Tihomirauth1327808BOOK9910346892003321Untersuchung des elektronischen Oberflächenzustands von Ag-Inseln auf supraleitendem Niob(110)3038124UNINA04480nam 22007335 450 991102196120332120250826130144.03-031-95823-310.1007/978-3-031-95823-6(MiAaPQ)EBC32273020(Au-PeEL)EBL32273020(CKB)40426792400041(DE-He213)978-3-031-95823-6(EXLCZ)994042679240004120250826d2025 u| 0engurcnu||||||||txtrdacontentcrdamediacrrdacarrierQuantum Spin and Representations of the Poincaré Group, Part II With a Focus on Physics and Operator Theory /by Horst R. Beyer1st ed. 2025.Cham :Springer Nature Switzerland :Imprint: Springer,2025.1 online resource (218 pages)Synthesis Lectures on Engineering, Science, and Technology,2690-03273-031-95822-5 Introduction -- Construction of a Double Cover of the Restricted Lorentz Group -- Weyl Spinors -- Weyl Representation of SL(2, C) -- An Extension to a Strongly Continuous Representation of a Semi-direct Product of R^4 and SL(2, C) -- Dirac Spinors -- Dirac Fields -- Dirac Equation -- Spin 1 Representations of SL(2, C) -- Maxwell Fields -- Maxwell's Equations -- Appendix -- Bibliography -- Index of Symbols -- Index.This book discusses how relativistic quantum field theories must transform under strongly continuous unitary representations of the Poincaré group. The focus is on the construction of the representations that provide the basis for the formulation of current relativistic quantum field theories of scalar fields, the Dirac field, and the electromagnetic field. Such construction is tied to the use of the methods of operator theory that also provide the basis for the formulation of quantum mechanics, up to the interpretation of the measurement process. In addition, since representation spaces of primary interest in quantum theory are infinite dimensional, the use of these methods is essential. Consequently, the book also calculates the generators of relevant strongly continuous one-parameter groups that are associated with the representations and, where appropriate, the corresponding spectrum. Part II of Quantum Spin and Representations of the Poincaré Group specifically addresses: construction of a double cover of the restricted Lorentz Group; Weyl spinors; Weyl representation of SL(2, C); an extension to a strongly continuous representation of a semi-direct product of R^4 and SL(2, C); Dirac spinors; Dirac fields; Dirac equation; Spin 1 representations of SL(2, C); Maxwell fields; and Maxwell's equations. In addition, this book: Presents how the use of methods from operator theory have become an indispensable tool for quantum field theory Connects mathematical results with their applications in physics, particularly in quantum field theory Provides mathematical rigor, introduces physical constants, and presents the dimensions of physical quantities.Synthesis Lectures on Engineering, Science, and Technology,2690-0327Particles (Nuclear physics)Quantum field theoryMathematical physicsQuantum theoryOperator theoryPhysicsAstronomyElementary Particles, Quantum Field TheoryTheoretical, Mathematical and Computational PhysicsQuantum PhysicsOperator TheoryMathematical PhysicsPhysics and AstronomyParticles (Nuclear physics)Quantum field theory.Mathematical physics.Quantum theory.Operator theory.Physics.Astronomy.Elementary Particles, Quantum Field Theory.Theoretical, Mathematical and Computational Physics.Quantum Physics.Operator Theory.Mathematical Physics.Physics and Astronomy.530.14Beyer Horst R725762MiAaPQMiAaPQMiAaPQBOOK9911021961203321Quantum Spin and Representations of the Poincaré Group, Part II4429493UNINA