منابع مشابه
On stringy AdS 5 × S 5 and higher spin holography
We derive the spectrum of Kaluza-Klein descendants of string excitations on AdS5 × S5. String states are organized in long multiplets of the AdS supergroup SU(2, 2|4,R) with a rich pattern of shortenings at the higher spin enhancement point λ = 0. The string states holographically dual to the higher spin currents of SYM theory in the strict zero coupling limit are identified together with the c...
متن کاملStringy Domain Walls and Other Stringy Topological Defects ⋆
We point out that the moduli sector of the (2, 2) string compactification with its nonperturbatively preserved non-compact symmetries is a framework to study global topological defects. Based on the target space modular invariance of the nonperturbative superpotential of the four-dimensional N = 1 supersymmetric string vacua, topologically stable stringy domain walls are found. Explicit supersy...
متن کاملStringy Chern classes
Work of Dixon, Harvey, Vafa and Witten in the 80’s ([DHVW85]) introduced a notion of Euler characteristic (for quotients of a torus by a finite group) which became known as the physicist’s orbifold Euler number. In the 90’s V. Batyrev introduced a notion of stringy Euler number ([Bat99b]) for ‘arbitrary Kawamata log-terminal pairs’, proving that this number agrees with the physicist’s orbifold ...
متن کاملStringy Robinson-Trautman solutions.
A class of solutions of the low energy string theory in four dimensions is studied. This class admits a geodesic, shear-free null congruence which is non-twisting but in general diverging and the corresponding solutions in Einstein’s theory form the Robinson-Trautman family together with a subset of the Kundt’s class. The Robinson-Trautman conditions are found to be frame invariant in string th...
متن کاملStringy Toda Cosmologies
We discuss a particular stringy modular cosmology with two axion fields in seven space-time dimensions, decomposable as a time and two flat three-spaces. The effective equations of motion for the problem are those of the SU(3) Toda molecule, and hence are integrable. We write down the solutions, and show that all of them are singular. They can be thought of as a generalization of the Pre-Big-Ba...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Progress in Particle and Nuclear Physics
سال: 2017
ISSN: 0146-6410
DOI: 10.1016/j.ppnp.2016.06.005