Diagonalizing Quadratic Bosonic Operators by Non-Autonomous Flow Equations
Seiten
2016
American Mathematical Society (Verlag)
9781470417055 (ISBN)
American Mathematical Society (Verlag)
9781470417055 (ISBN)
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Examines a non-autonomous, non-linear evolution equation on the space of operators on a complex Hilbert space. The authors specify assumptions that ensure the global existence of its solutions and allow them to derive its asymptotics at temporal infinity. They demonstrate that these assumptions are optimal in a suitable sense and more general than those used before.
The authors study a non-autonomous, non-linear evolution equation on the space of operators on a complex Hilbert space. They specify assumptions that ensure the global existence of its solutions and allow them to derive its asymptotics at temporal infinity. They demonstrate that these assumptions are optimal in a suitable sense and more general than those used before. The evolution equation derives from the Brocket-Wegner flow that was proposed to diagonalize matrices and operators by a strongly continuous unitary flow. In fact, the solution of the non-linear flow equation leads to a diagonalization of Hamiltonian operators in boson quantum field theory which are quadratic in the field.
The authors study a non-autonomous, non-linear evolution equation on the space of operators on a complex Hilbert space. They specify assumptions that ensure the global existence of its solutions and allow them to derive its asymptotics at temporal infinity. They demonstrate that these assumptions are optimal in a suitable sense and more general than those used before. The evolution equation derives from the Brocket-Wegner flow that was proposed to diagonalize matrices and operators by a strongly continuous unitary flow. In fact, the solution of the non-linear flow equation leads to a diagonalization of Hamiltonian operators in boson quantum field theory which are quadratic in the field.
Volker Bach, Technische Universitat Braunschweig, Germany. Jean-Bernard Bru, Universidad del Pais Vasco, Bilbao, Spain and Basque Foundation for Science, Bilbao, Spain.
Introduction
Diagonalization of quadratic boson Hamiltonians
Brocket-Wegner flow for quadratic boson operators
Illustration of the method
Technical proofs on the one-particle Hilbert space
Technical proofs on the boson Fock space
Appendix
References
| Erscheinungsdatum | 02.04.2016 |
|---|---|
| Reihe/Serie | Memoirs of the American Mathematical Society |
| Verlagsort | Providence |
| Sprache | englisch |
| Maße | 178 x 254 mm |
| Gewicht | 204 g |
| Themenwelt | Mathematik / Informatik ► Mathematik ► Analysis |
| Naturwissenschaften ► Physik / Astronomie ► Quantenphysik | |
| ISBN-13 | 9781470417055 / 9781470417055 |
| Zustand | Neuware |
| Informationen gemäß Produktsicherheitsverordnung (GPSR) | |
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