We show that the action of self-dual supersymmetric Yang-Mills theory in four-dimensions, which describes the consistent massless background fields for N = 2 superstring, generates the actions for N = 1 and N = 2 supersymmetric non-Abelian Chern-Simons theories in three-dimensions after appropriate dimensional reductions. Since the latters play important roles for supersymmetric integrable mode...

Talk delivered at \Strings '95" Conference at the Univ. of Southern California In this talk, the new spacetime-supersymmetric description of the superstring is reviewed and some of its applications are described. These applications include the manifestly spacetime-supersymmetric calculation of scattering amplitudes, the construction of a super-Poincar e invariant open superstring eld theory, an...

In a series of papers [1] we have presented a new approach to the old problem of the covariant quantization of the superstring. The fields of the classical superstring are x(z, z̄) and two (i=1,2) spacetime spinors θ(z, z̄) where m = 0, . . . , 9 is a vector index and α = 1, . . . , 16 the index of a real chiral spinor. A natural choice as action might seem to be the supersymmetric line element S...

A new method for understanding the speed limits of matter is presented. This method is based on the hypothesis that states that matter is vibrations of superstrings. The method uses the relativistic equations of the Special Relativity to, speculatively, obtain new relativistic equations that govern the vibrating motion of the superstring. Without the need of using the concept of the imaginary m...

We construct a kink solution on a non-BPS D-brane using Berkovits’ formulation of superstring field theory in the level truncation scheme. The tension of the kink reproduces 95% of the expected BPS D-brane tension. We also find a lumplike solution which is interpreted as a kink–antikink pair, and investigate some of its properties. These results may be considered as successful tests of Berkovit...

It has recently been shown that the ten-dimensional superstring can be quantized using the BRST operator Q = ∮ λdα where λ α is a pure spinor satisfying λγλ = 0 and dα is the fermionic supersymmetric derivative. In this paper, the pure spinor version of superstring theory is formulated in a curved supergravity background and it is shown that nilpotency and holomorphicity of the pure spinor BRST...

The best known approximation ratio for the shortest superstring problem is 2 11 23 (Mucha, 2012). In this note, we improve this bound for the case when the length of all input strings is equal to r, for r ≤ 7. E.g., for strings of length 3 we get a 1 1 3 -approximation. An advantage of the algorithm is that it is extremely simple both to implement and to analyze. Another advantage is that it is...

We study the scattering of a massless and neutral test particle in the gravitational field of a body (the string star) made of a large number of scalar states of the superstring. We consider two cases, the one in which these states are neutral string excitations massive already in ten dimensions and the one in which their masses (and charges) originate in the process of compactification on tori...

A proposed duality between type IIB superstring theory on R×S1 and a conjectured 11D fundamental theory (“M theory”) on R × T 2 is investigated. Simple heuristic reasoning leads to a consistent picture relating the various p-branes and their tensions in each theory. Identifying the M theory on R×S1 with type IIA superstring theory on R, in a similar fashion, leads to various relations among the...