# nLab Joseph Polchinski

## Selected writings

Introducing Polchinski's flow equation in renormalization:

Introducing orientifolds:

Introducing D-branes:

although it appears that we have modified the type II theory by adding something new to it, we are now arguing that these objects are actually intrinsic to any nonperturbative formulation of the type II theory; presumably one should think of them as an alternate representation of the black $p$-branes

General review includes

On orientifolds, RR-field tadpole cancellation and orientifolds of K3:

Textbook on string theory:

category: people

Last revised on February 18, 2020 at 11:21:11. See the history of this page for a list of all contributions to it.