nLab string

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Surveys, textbooks and lecture notes

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• Axiomatizations

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• -theorem

• Tools

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• Structural phenomena

• Types of quantum field thories

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• examples

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Contents

Idea

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

(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.