Quantum field propagator for extended-objects in the microcanonical ensemble and the S-matrix formulation

被引：3
|
作者：
Cirilo-Lombardo, Diego J. [1 ]
机构：
[1] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia
来源：
PHYSICS LETTERS B | 2006年 / 637卷 / 1-2期
关键词：
microcanonical ensemble; S-matrix formulation; string propagators;
D O I：
10.1016/j.physletb.2006.04.004
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Starting with the well-known Nambu-Goto action for an N-extended body system the propagator in the microcanonical ensemble is explicitly computed. This propagator is independent of the temperature and, in contrast with the previous references, takes account on all the non-local effects produced by the extended objects (e.g., strings) in interaction. The relation between relativistic quantum field theories in the microcanonical approach and the pure S-matrix formulation is established and analyzed. (c) 2006 Elsevier B.V. All rights reserved.
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页码：133 / 138
页数：6
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