An Exact Solution of BPS Domain Wall Junction
نویسندگان
چکیده
An exact solution of domain wall junction is obtained in a fourdimensional N = 1 supersymmetric U(1) × U(1)′ gauge theory with three pairs of chiral superfields which is motivated by the N = 2 SU(2) gauge theory with one flavor perturbed by an adjoint scalar mass. The solution allows us to evaluate various quantities including a new central charge Yk associated with the junction besides Zk which appears already in domain walls. We find that the new central charge Yk gives a negative contribution to the mass of the domain wall junction whereas the central charge Zk gives a dominant positive contribution. One has to be cautious to identify the central charge Yk alone as the mass of the junction. ∗ e-mail: [email protected] † e-mail: [email protected] ‡ e-mail: [email protected] § e-mail: [email protected]
منابع مشابه
An Exact Solution of BPS Junctions and Its Properties
We have obtained an exact solution for the BPS domain wall junction for a N = 1 supersymmetric theory in four dimensions and studied its properties. The model is a simplified version of the N = 2 SU(2) gauge theory with Nf = 1 broken to N = 1 by the mass of the adjoint chiral superfield. We define mode equations and demonstrate explicitly that fermion and boson with the same mass have to come i...
متن کاملNonnormalizable Zero Modes on BPS Junctions
Using an exact solution as a concrete example, Nambu-Goldstone modes on the BPS domain wall junction are worked out for N = 1 supersymmetric theories in four dimensions. Their wave functions extend along the wall to infinity (not localized) and are not normalizable. It is argued that this feature is a generic phenomenon of Nambu-Goldstone modes on domain wall junctions in the bulk flat space in...
متن کاملExactly solved BPS wall and winding number in N = 1 Supergravity
A BPS exact wall solution is found in N = 1 supergravity in four dimensions. The model uses chiral scalar field with a periodic superpotential admitting winding numbers. Maintaining the periodicity in supergravity requires a gravitational correction to superpotential which allows the exact solution. By introducing boundary cosmological constants, we construct non-BPS multi-wall solutions for wh...
متن کاملAn exact BPS wall solution in Five Dimensional Supergravity
In five-dimensional supergravity, an exact solution of BPS wall is found for a gravitational deformation of the massive Eguchi-Hanson nonlinear sigma model. The warp factor decreases for both infinities of the extra dimension. Thin wall limit gives the Randall-Sundrum model without fine-tuning of input parameters. We also obtain wall solutions with warp factors which are flat or increasing in o...
متن کاملDomain Walls and Flux Tubes in N = 2 SQCD: D-Brane Prototypes
This paper could have been entitled “D branes and strings from flesh and blood.” We study field theoretic prototypes of D branes/strings. To this end we consider (2+1)-dimensional domain walls in (3+1)-dimensional N = 2 SQCD with SU(2) gauge group and Nf = 2 flavors of fundamental hypermultiplets (quarks). This theory is perturbed by a small mass term of the adjoint matter which, in the leading...
متن کامل