This title appears in the Scientific Report :
2003
Please use the identifier:
http://hdl.handle.net/2128/10716 in citations.
Please use the identifier: http://dx.doi.org/10.1016/S0375-9474(02)01365-9 in citations.
Quasiparticle Properties in Effective Field Theory
Quasiparticle Properties in Effective Field Theory
The quasiparticle concept is an important tool for the description of many-body systems. We study the quasiparticle properties for dilute Fermi systems with short-ranged, repulsive interactions using effective field theory. We calculate the proper self-energy contributions at order (k(F)/Lambda)(3),...
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Personal Name(s): | Platter, L. |
---|---|
Hammer, H. W. / Meissner, U.G. | |
Contributing Institute: |
Institut 3 (Theoretische Kernphysik); IKP-TH |
Published in: |
Nuclear physics |
Imprint: |
Amsterdam
North-Holland Publ. Co.
2003
|
Physical Description: |
250 - 264 |
DOI: |
10.1016/S0375-9474(02)01365-9 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen |
Series Title: |
Nuclear Physics A
714 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1016/S0375-9474(02)01365-9 in citations.
The quasiparticle concept is an important tool for the description of many-body systems. We study the quasiparticle properties for dilute Fermi systems with short-ranged, repulsive interactions using effective field theory. We calculate the proper self-energy contributions at order (k(F)/Lambda)(3), where A is the short-distance scale that sets the size of the effective range parameters and k(F) the Fermi momentum. The quasiparticle energy, width, and effective mass to O((k(F)/Lambda)(3)) are derived from the calculated self-energy. (C) 2002 Elsevier Science B.V. All rights reserved. |