Superstrings in graviphoton background and N=1/2+3/2 supersymmetry
Superstrings in graviphoton background and N=1/2+3/2 supersymmetry
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引力光子背景中的超弦和 N=1/2 3/2 超对称性
DOI:
10.1088/1126-6708/2003/07/010
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发表时间:
2003
影响因子:
5.4
通讯作者:
N. Seiberg
中科院分区:
文献类型:
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作者:
N. Berkovits;N. Seiberg
Motivated by Ooguri and Vafa, we study superstrings in flat 4 in a constant self-dual graviphoton background. The supergravity equations of motion are satisfied in this background which deforms the = 2 d = 4 flat space super-Poincare algebra to another algebra with eight supercharges. A D-brane in this space preserves a quarter of the supercharges; i.e. = 1/2 supersymmetry is realized linearly, and the remaining = 3/2 supersymmetry is realized nonlinearly. The theory on the brane can be described as a theory in noncommutative superspace in which the chiral fermionic coordinates θα of = 1 d = 4 superspace are not Grassman variables but satisfy a Clifford algebra.
DOI:
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发表时间:
2003
期刊:
Nucl.Phys. B664
影响因子:
--
作者:
Masafumi Fukuma;Hikaru Kawai;Masao Ninomiya;Hikaru Kawai
通讯作者:
Hikaru Kawai