Автор |
J Daniel Christensen |
Автор |
Greg Egan |
Дата выпуска |
2002-03-21 |
dc.description |
The 10j symbol is a spin network that appears in the partition function for the Barrett–Crane model of Riemannian quantum gravity. Elementary methods of calculating the 10j symbol require O(j<sup>9</sup>) or more operations and O(j<sup>2</sup>) or more space, where j is the average spin. We present an algorithm that computes the 10j symbol using O(j<sup>5</sup>) operations and O(j<sup>2</sup>) space, and a variant that uses O(j<sup>6</sup>) operations and a constant amount of space. An implementation has been made available on the web. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
An efficient algorithm for the Riemannian 10j symbols |
Тип |
paper |
DOI |
10.1088/0264-9381/19/6/310 |
Electronic ISSN |
1361-6382 |
Print ISSN |
0264-9381 |
Журнал |
Classical and Quantum Gravity |
Том |
19 |
Первая страница |
1185 |
Последняя страница |
1193 |
Выпуск |
6 |