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DOI：10.1088/0264-9381/23/14/012.png)
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摘要
En 中文
We derive, using the pure-spinor formalism, the complete-including the fermions-4-point effective action of both type II superstrings to all orders in alpha', at tree level in string loops. We find that, in the quartic-field approximation, the supergravity Lagrangian can be thought of as the tensor product, in a suitable sense, of two copies of the super-Yang-Mills Lagrangian in ten dimensions. The NS-NS 3-form enters the supergravity Lagrangian through a modified connection with torsion. As a byproduct, we derive the complete, i.e. to all orders in the theta-expansion, closed-string vertex operator in a flat target-space background.
Keyword:
QUARTIC EFFECTIVE ACTION
PURE SPINORS
AMPLITUDES
SUPERGRAVITY
QUANTIZATION
SUPERSPACE
N=2
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期刊
IF:
3.7
论文数:
1.3W
被引数:
3.0W
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