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Descripción
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| The dynamics of quantum field theories on bounded domains requires the introduction of boundary conditions on the quantum fields. We address the problem from a very general perspective by using charge conservation as a fundamental principle for scalar and fermionic quantum field theories. Unitarity arises as a consequence of the choice of charge preserving boundary conditions. This provides a powerful framework for the analysis of global geometrical and topological properties of the space of physical boundary conditions. Boundary conditions which allow the existence of edge states can only arise in theories with a mass gap which is also a physical requirement for topological insulators. The dynamics of quantum field theories on bounded domains requires the introduction of boundary conditions on the quantum fields. We address the problem from a very general perspective by using charge conservation as a fundamental principle for scalar and fermionic quantum field theories. Unitarity arises as a consequence of the choice of charge preserving boundary conditions. This provides a powerful framework for the analysis of global geometrical and topological properties of the space of physical boundary conditions. Boundary conditions which allow the existence of edge states can only arise in theories with a mass gap which is also a physical requirement for topological insulators. Read More: http://www.worldscientific.com/doi/abs/10.1142/S021988781560004X | |
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Internacional
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JCR del ISI
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Si |
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Título de la revista
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International Journal of Geometric Methods in Modern Physics |
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ISSN
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0219-8878 |
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Factor de impacto JCR
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0,617 |
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Información de impacto
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Volumen
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12 |
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DOI
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10.1142/S021988781560004X |
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Número de revista
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6 |
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Desde la página
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1560004-1 |
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Hasta la página
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1560004-12 |
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Mes
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JULIO |
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Ranking
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