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A derivation of relativistically-invariant nonlinear field equations for strongly interacting many-body systems
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UNSPECIFIED (1997) A derivation of relativistically-invariant nonlinear field equations for strongly interacting many-body systems. INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 11 (7). pp. 929-944. ISSN 0217-9792.
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Abstract
We re-examine the derivation of nonlinear field equations for a system of strongly interacting quasiparticles. Emphasis is placed on typical dispersion relations in the relativistic regime. Through Heisenberg's equations of motion for second-quantised operators we demonstrate that interacting many-body systems are described by a nonlinear Klein-Gordon type field equation. Its nonrelativistic equivalent was previously shown to be of the nonlinear Schrodinger type.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | INTERNATIONAL JOURNAL OF MODERN PHYSICS B | ||||
Publisher: | WORLD SCIENTIFIC PUBL CO PTE LTD | ||||
ISSN: | 0217-9792 | ||||
Official Date: | 20 March 1997 | ||||
Dates: |
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Volume: | 11 | ||||
Number: | 7 | ||||
Number of Pages: | 16 | ||||
Page Range: | pp. 929-944 | ||||
Publication Status: | Published |
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