Relativistic dynamics, Green function and pseudodifferential operators
The central role played by pseudodifferential operators in relativistic dynamics is known very well. In this work, operators like the Schrodinger one (e.g., square root) are treated from the point of view of the non-local pseudodifferential Green functions. Starting from the explicit construction of...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00222488_v57_n6_p_CiriloLombardo |
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todo:paper_00222488_v57_n6_p_CiriloLombardo2023-10-03T14:29:51Z Relativistic dynamics, Green function and pseudodifferential operators Cirilo-Lombardo, D.J. The central role played by pseudodifferential operators in relativistic dynamics is known very well. In this work, operators like the Schrodinger one (e.g., square root) are treated from the point of view of the non-local pseudodifferential Green functions. Starting from the explicit construction of the Green (semigroup) theoretical kernel, a theorem linking the integrability conditions and their dependence on the spacetime dimensions is given. Relativistic wave equations with arbitrary spin and the causality problem are discussed with the algebraic interpretation of the radical operator and their relation with coherent and squeezed states. Also we perform by means of pure theoretical procedures (based in physical concepts and symmetry) the relativistic position operator which satisfies the conditions of integrability: It is a non-local, Lorentz invariant and does not have the same problems as the "local"position operator proposed by Newton and Wigner. Physical examples, as zitterbewegung and rogue waves, are presented and deeply analyzed in this theoretical framework. © 2016 Author(s). Fil:Cirilo-Lombardo, D.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00222488_v57_n6_p_CiriloLombardo |
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Universidad de Buenos Aires |
| institution_str |
I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
The central role played by pseudodifferential operators in relativistic dynamics is known very well. In this work, operators like the Schrodinger one (e.g., square root) are treated from the point of view of the non-local pseudodifferential Green functions. Starting from the explicit construction of the Green (semigroup) theoretical kernel, a theorem linking the integrability conditions and their dependence on the spacetime dimensions is given. Relativistic wave equations with arbitrary spin and the causality problem are discussed with the algebraic interpretation of the radical operator and their relation with coherent and squeezed states. Also we perform by means of pure theoretical procedures (based in physical concepts and symmetry) the relativistic position operator which satisfies the conditions of integrability: It is a non-local, Lorentz invariant and does not have the same problems as the "local"position operator proposed by Newton and Wigner. Physical examples, as zitterbewegung and rogue waves, are presented and deeply analyzed in this theoretical framework. © 2016 Author(s). |
| format |
JOUR |
| author |
Cirilo-Lombardo, D.J. |
| spellingShingle |
Cirilo-Lombardo, D.J. Relativistic dynamics, Green function and pseudodifferential operators |
| author_facet |
Cirilo-Lombardo, D.J. |
| author_sort |
Cirilo-Lombardo, D.J. |
| title |
Relativistic dynamics, Green function and pseudodifferential operators |
| title_short |
Relativistic dynamics, Green function and pseudodifferential operators |
| title_full |
Relativistic dynamics, Green function and pseudodifferential operators |
| title_fullStr |
Relativistic dynamics, Green function and pseudodifferential operators |
| title_full_unstemmed |
Relativistic dynamics, Green function and pseudodifferential operators |
| title_sort |
relativistic dynamics, green function and pseudodifferential operators |
| url |
http://hdl.handle.net/20.500.12110/paper_00222488_v57_n6_p_CiriloLombardo |
| work_keys_str_mv |
AT cirilolombardodj relativisticdynamicsgreenfunctionandpseudodifferentialoperators |
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1807324051566231552 |