Fields, Strings and Branes

نویسنده

  • Rafael Hernández
چکیده

2 What is your aim in phylosophy? To show the fly the way out of the fly-bottle.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Remarks on non-BPS D-branes

Following Sen’s discovery of various stable non-BPS D-branes, K-theory has been shown to be the appropriate mathematical framework for classifying conserved D-brane charges. The classification accounts for known D-branes and predicts some new ones including a D8-brane in type I superstring theory. After briefly reviewing these developments, we discuss certain issues pertaining to the D8brane, w...

متن کامل

Open Strings and Dualities

In the fruitful interplay between gauge fields and strings and in many conjectured M-theory dualities, open strings play a prominent role. We review the construction of open-string descendants (un-orientifolds) of closed-string theories admitting a generalized orientation reversal involution. We then specialize the construction to some classes of non-supersymmetric models in D = 10 that have be...

متن کامل

Kinky D - Strings

We study two-dimensional SQED viewed as the world-volume theory of a D-string in the presence of D5-branes with non-zero background fields that induce attractive forces between the branes. In various approximations, the low-energy dynamics is given by a hyperKähler, or hyperKähler with torsion, massive sigma-model. We demonstrate the existence of kink solutions corresponding to the string inter...

متن کامل

Nucleation of p-branes and fundamental strings.

We construct a solution to the low-energy string equations of motion in five dimensions that describes a circular loop of fundamental string exponentially expanding in a background electric H-field. Euclideanising this gives an instanton for the creation of a loop of fundamental string in a background H-field, and we calculate the rate of nucleation. Solutions describing magnetically charged st...

متن کامل

Dynamics of Dirichlet-Neumann Open Strings on D-branes

Method for computing scattering amplitudes of open strings with Dirichlet boundary on one end and Neumann boundary condition on the other is described. Vertex operator for these states are constructed using twist fields which have been studied previously in the context of Ashkin-Teller model and strings on orbifolds. Using these vertex operators, we compute the threeand four-point scattering am...

متن کامل

Effective Description of Axion Defects

Axion strings and domain walls exhibit a number of novel effects in the presence of gauge fields, in particular the electromagnetic field. It is shown how these effects are reproduced in a model of Nambu-Goto-type strings and open or closed membranes coupled to gauge fields. The generalization to 'axionic p-branes' is considered and it is shown how worldvolume gauge fields that arise in certain...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1997