The Wikipedia article on the method used to calculate this sum mentions applications to quantum field theory [1]. Links to applications might be an interesting

The Wikipedia article on the method used to calculate this sum mentions applications to quantum field theory [1]. Links to applications might be an interesting category of metadata for Wikipedia math articles which could be semi-automatically constructed. [1] http://en.wikipedia.org/wiki/Ramanujan_summation http://en.wikipedia.org/wiki/Ramanujan_summation