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arXiv 1102.1195math-phhep-thmath.MP
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SO(1,k)不变量子场论中的Haag定理

Haag's theorem in S O (1, k) invariant quantum field theory

K. V. Antipin, Yu. S. Vernov, M. N. Mnatsakanova

摘要:

在SO(1,k)不变的量子场论中证明了广义Haag定理.除了上述k+1个变量外,理论中还可以有任意数目的附加坐标,包括非对易坐标。得到了推广的Haag定理的新结果。证明了两种理论中四点Wightman函数的相等性导致两种理论中弹性散射振幅相等,从而导致总散射截面相等。在四维时空非对易量子场论中,证明了如果在所考虑的一个理论中S-矩阵等于1,那么在另一个理论中S-矩阵也是1。

英文摘要:

Generalized Haag's theorem has been proved in S O (1, k) invariant quantum field theory. Apart from the above mentioned k+1 variables there can be arbitrary number of additional coordinates including noncommutative ones in the theory. New consequences of generalized Haag's theorem are obtained. It has been proved that the equality of four-point Wightman functions in two theories leads to the equality of elastic scattering amplitudes and thus the total cross-sections in these theories. In space-space noncommutative quantum field theory in four-dimensional case it has been proved that if in one of the theories under consideration S-matrix is equal to unity, then in another theory S-matrix is unity as well.

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