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Title: Noncommutative Dipole Field Theories And Unitarity

Journal Article · · Journal of High Energy Physics
OSTI ID:964655

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.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
Physics Division
DOE Contract Number:
DE-AC02-05CH11231
OSTI ID:
964655
Report Number(s):
LBNL-53931; TRN: US0903609
Journal Information:
Journal of High Energy Physics, Related Information: Journal Publication Date: 03/25/2004; ISSN 1029-8479
Country of Publication:
United States
Language:
English

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