We give a detailed microscopic derivation of gauge and stringy instanton gen erated superpotentials for gauge theories living on D3-branes at Z(3)-orientifold singularities. Gauge instantons are generated by D(-1)-branes and lead to Affleck, Dine and Seiberg (ADS) like superpotentials in the effective N = 1 gauge theories with three generations of bifundamental and anti/symmetricmatter.Stringy instanton effects are generated by Euclidean ED3-branes wrapping four cycles onT(6)/Z(3).They give rise to Majorana masses,Yukawa couplings or non-renormalizable superpotentials depending on the gauge theory.Finally we determine the conditions under which ADS like superpotentials are generated in N = 1gauge theories with adjoints, fundamentals, symmet...
We study the effects produced by D-brane instantons on the holomorphic quantities of a D-brane gauge...
Systems of D3-branes at orientifold singularities can receive non-perturbative D-brane instanton cor...
Systems of D3-branes at orientifold singularities can receive non-perturbative D-brane instanton cor...
We give a detailed microscopic derivation of gauge and stringy instanton gen erated superpotentials ...
We give a detailed microscopic derivation of gauge and stringy instanton gen erated superpotentials ...
We give a detailed microscopic derivation of gauge and stringy instanton gen erated superpotentials ...
We give a detailed microscopic derivation of gauge and stringy instanton gen erated superpotentials ...
We review basic aspects of worldsheet and penta-brane instantons as well as (unoriented) D-brane ins...
We review basic aspects of worldsheet and penta-brane instantons as well as (unoriented) D-brane ins...
We review basic aspects of worldsheet and penta-brane instantons as well as (unoriented) D-brane ins...
We review basic aspects of worldsheet and penta-brane instantons as well as (unoriented) D-brane ins...
We review basic aspects of worldsheet and penta-brane instantons as well as (unoriented) D-brane ins...
In the first lecture, we discuss basic aspects of worldsheet and penta-brane instantons as well as (...
D-instantons are used to probe the near-horizon geometry of D3-branes systems on orbifold spaces. Fo...
D-instantons are used to probe the near-horizon geometry of D3-branes systems on orbifold spaces. Fo...
We study the effects produced by D-brane instantons on the holomorphic quantities of a D-brane gauge...
Systems of D3-branes at orientifold singularities can receive non-perturbative D-brane instanton cor...
Systems of D3-branes at orientifold singularities can receive non-perturbative D-brane instanton cor...
We give a detailed microscopic derivation of gauge and stringy instanton gen erated superpotentials ...
We give a detailed microscopic derivation of gauge and stringy instanton gen erated superpotentials ...
We give a detailed microscopic derivation of gauge and stringy instanton gen erated superpotentials ...
We give a detailed microscopic derivation of gauge and stringy instanton gen erated superpotentials ...
We review basic aspects of worldsheet and penta-brane instantons as well as (unoriented) D-brane ins...
We review basic aspects of worldsheet and penta-brane instantons as well as (unoriented) D-brane ins...
We review basic aspects of worldsheet and penta-brane instantons as well as (unoriented) D-brane ins...
We review basic aspects of worldsheet and penta-brane instantons as well as (unoriented) D-brane ins...
We review basic aspects of worldsheet and penta-brane instantons as well as (unoriented) D-brane ins...
In the first lecture, we discuss basic aspects of worldsheet and penta-brane instantons as well as (...
D-instantons are used to probe the near-horizon geometry of D3-branes systems on orbifold spaces. Fo...
D-instantons are used to probe the near-horizon geometry of D3-branes systems on orbifold spaces. Fo...
We study the effects produced by D-brane instantons on the holomorphic quantities of a D-brane gauge...
Systems of D3-branes at orientifold singularities can receive non-perturbative D-brane instanton cor...
Systems of D3-branes at orientifold singularities can receive non-perturbative D-brane instanton cor...