Felix Karbstein (5 results)
Language: English
Published by Südwestdeutscher Verlag für Hochschulschriften 2015
- Softcover
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Taschenbuch. Condition: Neu. Integrating out the Dirac Sea | A no-sea effective theory approach | Felix Karbstein | Taschenbuch | 96 S. | Deutsch | 2015 | Südwestdeutscher Verlag für Hochschulschriften | EAN 9783838110103 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at…]preigu[dot]de | Anbieter: preigu.
Language: English
Published by Südwestdeutscher Verlag Für Hochschulschriften Aug 2009 2009
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Seller: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, , GermanyBuchWeltWeit Ludwig Meier e.K.
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Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -We introduce a new method for dealing with fermionic quantum field theories amenable to a mean-field-type approximation. In this book we focus on the relativistic Hartree approximation. Our aim is to integrate out the Dirac sea and…derive a 'no-sea effective theory' with positive energy single particle states only. As the derivation of the no-sea effective theory involves only standard Feynman diagrams, our approach is quite general and not restricted to particular space-time dimensions. We develop and illustrate the approach in the 'large N' limit of the Gross-Neveu model family in 1+1 dimensions, which serves as an ideal testing ground for our no-sea effective theory approach. The chiral Gross-Neveu model, also referred to as Nambu-Jona-Lasinio model, turns out to be of particular interest. In this case, we explicitly derive a consistent effective theory featuring both elementary 'Pi meson' fields and (positive energy) 'quark' fields, starting from a purely fermionic quantum field theory. In the second part of this book, we apply our approach to the Walecka model in 1+1 and 3+1 dimensions. 96 pp. Deutsch.
Language: English
Published by Südwestdeutscher Verlag für Hochschulschriften 2009
- Softcover
- Print on Demand
Seller: moluna, Greven, , Germanymoluna
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Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. We introduce a new method for dealing with fermionic quantum field theories amenable to a mean-field-type approximation. In this book we focus on the relativistic Hartree approximation. Our aim is to integrate out the… Dirac sea and derive a no-sea effectiv.
Language: English
Published by Südwestdeutscher Verlag Für Hochschulschriften Aug 2009 2009
- Softcover
- Print on Demand
Seller: buchversandmimpf2000, Emtmannsberg, BAYE, Germanybuchversandmimpf2000
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Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -We introduce a new method for dealing with fermionic quantum field theories amenable to a mean-field-type approximation. In this book we focus on the relativistic Hartree approximation. Our aim is to integrate out the Dirac sea and deri…ve a 'no-sea effective theory' with positive energy single particle states only. As the derivation of the no-sea effective theory involves only standard Feynman diagrams, our approach is quite general and not restricted to particular space-time dimensions. We develop and illustrate the approach in the 'large N' limit of the Gross-Neveu model family in 1+1 dimensions, which serves as an ideal testing ground for our no-sea effective theory approach. The chiral Gross-Neveu model, also referred to as Nambu-Jona-Lasinio model, turns out to be of particular interest. In this case, we explicitly derive a consistent effective theory featuring both elementary 'Pi meson' fields and (positive energy) 'quark' fields, starting from a purely fermionic quantum field theory. In the second part of this book, we apply our approach to the Walecka model in 1+1 and 3+1 dimensions.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 96 pp. Deutsch.
Language: English
Published by Südwestdeutscher Verlag Für Hochschulschriften 2009
- Softcover
- Print on Demand
Seller: AHA-BUCH GmbH, Einbeck, GermanyAHA-BUCH GmbH
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Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - We introduce a new method for dealing with fermionic quantum field theories amenable to a mean-field-type approximation. In this book we focus on the relativistic Hartree approximation. Our aim is to integrate out the Dirac sea and deriv…e a 'no-sea effective theory' with positive energy single particle states only. As the derivation of the no-sea effective theory involves only standard Feynman diagrams, our approach is quite general and not restricted to particular space-time dimensions. We develop and illustrate the approach in the 'large N' limit of the Gross-Neveu model family in 1+1 dimensions, which serves as an ideal testing ground for our no-sea effective theory approach. The chiral Gross-Neveu model, also referred to as Nambu-Jona-Lasinio model, turns out to be of particular interest. In this case, we explicitly derive a consistent effective theory featuring both elementary 'Pi meson' fields and (positive energy) 'quark' fields, starting from a purely fermionic quantum field theory. In the second part of this book, we apply our approach to the Walecka model in 1+1 and 3+1 dimensions.
