Space-time noncommutative field theories and unitarity

被引：411
|
作者：
Gomis, J [1 ]
Mehen, T
机构：
[1] CALTECH, Dept Phys, Pasadena, CA 91125 USA
[2] Univ So Calif, Ctr Theoret Phys, CALTECH, Los Angeles, CA 90089 USA
来源：
NUCLEAR PHYSICS B | 2000年 / 591卷 / 1-2期
关键词：
D O I：
10.1016/S0550-3213(00)00525-3
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 study the perturbative unitarity of noncommutative scalar held theories. Field theories with space-time noncommutativity do not have a unitary S-matrix. Field theories with only space noncommutativity are perturbatively unitary. This can be understood from string theory, since space noncommutative field theories describe a low energy limit of string theory in a background magnetic field. On the other hand, there is no regime in which space-time noncommutative field theory is an appropriate description of string theory. Whenever space-time noncommutative field theory becomes relevant massive open string states cannot be neglected. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：265 / 276
页数：12
相关论文
共 50 条
  • [1] Unitarity in space-time noncommutative field theories
    Rim, C
    Yee, JH
    [J]. PHYSICS LETTERS B, 2003, 574 (1-2) : 111 - 120
  • [2] Effective field theories on noncommutative space-time
    Calmet, X
    Wohlgenannt, M
    [J]. PHYSICAL REVIEW D, 2003, 68 (02)
  • [3] On the unitarity problem in space/time noncommutative theories
    Bahns, D
    Doplicher, S
    Fredenhagen, K
    Piacitelli, G
    [J]. PHYSICS LETTERS B, 2002, 533 (1-2) : 178 - 181
  • [4] Perturbation theory of the space-time noncommutative real scalar field theories
    Rim, C
    Seo, Y
    Yee, JH
    [J]. PHYSICAL REVIEW D, 2004, 70 (02):
  • [5] On the space-time symmetries of noncommutative gauge theories
    Iorio, A
    Sykora, T
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2002, 17 (17): : 2369 - 2376
  • [6] Space-time noncommutative theories at finite temperature
    Strelchenko, A. V.
    Vassilevich, D. V.
    [J]. PHYSICAL REVIEW D, 2007, 76 (06)
  • [7] Space-Time Diffeomorphisms in Noncommutative Gauge Theories
    Rosenbaum, Marcos
    Vergara, J. David
    Juarez, L. Roman
    [J]. SYMMETRY INTEGRABILITY AND GEOMETRY-METHODS AND APPLICATIONS, 2008, 4
  • [8] Hamiltonian formalism for space-time noncommutative theories
    Gomis, J
    Kamimura, K
    Llosa, J
    [J]. PHYSICAL REVIEW D, 2001, 63 (04)
  • [9] Noncommutative dipole field theories and unitarity
    Chiou, DW
    Ganor, OJ
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 2004, (03):
  • [10] Space-time symmetry of noncommutative field theory
    Gonera, C
    Kosinski, P
    Maslanka, P
    Giller, S
    [J]. PHYSICS LETTERS B, 2005, 622 (1-2) : 192 - 197
12345