N-POINT FINITE TEMPERATURE EXPECTATION VALUES AT REAL TIMES

被引:89
作者
EVANS, TS
机构
[1] Blackett Laboratory, London, SW7 2BZ, Prince Consort Road
关键词
D O I
10.1016/0550-3213(92)90357-H
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
In both the real- and imaginary-time formalisms of finite-temperature field theory it is shown exactly what types of real-time expectation value are being calculated. The relationship between these functions is then considered. The conclusion is that neither the well-known results for two-point functions nor the recently obtained results for three-point functions have a simple generalisation to higher-order functions. All the results are valid whatever approximation to the full fields is being used and whatever types of field are involved.
引用
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页码:340 / 370
页数:31
相关论文
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