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A string is a brane of dimension one higher than an ordinary particle:
where a 1-dimensional sigma-model may be thought of a describing the dynamics of particles propagating of a target space $X$, a 2-dimensional sigma-model is said to described the dynamics of a string on some target space.
Much of traditional quantum field theory on $X$ may be understood in terms of second quantization of 1-dimensional sigma-models with target space $X$. What is called string theory is the corresponding study of what happens to this situation as the 1-dimensional $\sigma$-model is replaced by a 2-dimensional one.
There is
the superstring of superstring theory
(also called the F1-brane)
$\,$
Table of appearing in / (for classification see at ).
in | d under | has theory | |
---|---|---|---|
$(D = 2n)$ | $\,$ | $\,$ | |
$\,$ | $\,$ | ||
$\,$ | $\,$ | $\,$ | |
$\,$ | $\,$ | with | |
$\,$ | $\,$ | ||
$\,$ | $\,$ | ||
$(D = 2n+1)$ | $\,$ | $\,$ | |
$\,$ | $\,$ | $\,$ | |
$\,$ | $\,$ | 2d with | |
$\,$ | $\,$ | ||
$\,$ | $\,$ | $\,$ | |
$\,$ | $\,$ | $\,$ | |
$\,$ | $\,$ | $\,$ | |
$\,$ | $\,$ | $\,$ | |
() | () | ||
$\,$ | |||
$\,$ | |||
$\,$ | |||
D-brane for | $\,$ | ||
$\,$ | |||
$\,$ | |||
/ | $\,$ | ||
$\,$ | , | ||
$\,$ | |||
/ | |||
on | |||
$\,$ | on | ||
on | |||
Last revised on March 17, 2017 at 02:17:01. See the history of this page for a list of all contributions to it.