-Bracket for D-branes in Large R-R Field Background
arXiv:2302.08649 · doi:10.1007/JHEP07(2023)002
Abstract
The volume-preserving diffeomorphism is a key feature that characterizes the large constant R-R ()-form field background in a D-brane theory. It represents a symmetry of the theory that preserves the volume of space. To describe this symmetry, we introduce the concept of the ()-bracket, which generates the volume-preserving diffeomorphism. The ()-bracket is a mathematical operation that acts on ()-forms and encodes the transformation of the background field under the symmetry. To generalize the ()-bracket, we can apply it to the non-Abelian one-form gauge field, which is relevant in gauge theories with non-Abelian gauge groups. This allows us to extend the concept of volume-preserving diffeomorphism and its associated symmetry to non-Abelian gauge theories. When considering D-branes and T-duality, we introduce the transverse coordinates of the branes. By incorporating T-duality and the generalized bracket, a general expression for the action in D-branes can be derived when . This result connects the existing construction of D-branes with our generalized bracket, illustrating the relationship between the symmetry and its associated transformations and the dynamics of the branes. In addition, we can discuss the non-Abelianization of the ()-form gauge potential. This process involves generalizing the concept of non-Abelian gauge fields to higher-form gauge potentials. By extending the Lagrangian description of a single D-brane to multiple D-branes, a similar Lagrangian description can be established for both cases, highlighting the common underlying structure and symmetry properties. Our developments demonstrate the interplay between symmetries, gauge fields, and D-brane dynamics, providing a deeper understanding of the underlying principles within D-branes.
22 pages, 1 figure, minor changes