Noncommutative dipole field theories and unitarity

被引：0
|
作者：
Chiou, DW
Ganor, OJ
机构：
[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Lawrence Berkeley Natl Labs, Berkeley, CA 94720 USA
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2004年 / 03期
关键词：
field theories in lower dimensions; space-time symmetries; non-commutative geometry;
D O I：
暂无
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：
We extend the argument of Gomis and Mehen for violation of unitarity in field theories with space-time noncommutativity to dipole field theories. In dipole field theories with a timelike dipole vector, we present 1-loop amplitudes that violate the optical theorem. A quantum mechanical system with nonlocal potential of finite extent in time also shows violation of unitarity.
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页数：20
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