Combinatorics of Strings and Equivalence of Witten's String Field Theory to Polyakov's String Theory
نویسندگان
چکیده
منابع مشابه
DEVELOPMENT IN STRING THEORY
The string theory is a fast moving subject, both physics wise and in the respect of mathematics. In order to keep up with the discipline it is important to move with new ideas which are being stressed. Here I wish to give extracts from new papers of ideas which I have recently found interesting. There are six papers which are involved: I ."Strings formulated directly in 4 dimensions " A. N...
متن کاملString Field Theory of Noncritical Strings
We construct the Hamiltonian operator of the string field theory for c = 0 string theory. It describes how strings evolve in the coordinate frame, which is defined by using the geodesic distance on the worldsheet. The Hamiltonian consists of three-string interaction terms and a tadpole term. We show that one can derive the loop amplitudes of c = 0 string theory from this Hamiltonian.
متن کاملOpen string field theory without open strings
Witten’s cubic open string field theory is expanded around the perturbatively stable vacuum, including all scalar fields at levels 0, 2, 4 and 6. The (approximate) BRST cohomology of the theory is computed, giving strong evidence for the absence of physical open string states in this vacuum.
متن کاملCombinatorics of Solitons in Noncritical String Theory
We study the combinatorics of solitons in D < 2 (or c < 1) string theory. The weights in the summation over multi-solitons are shown to be automatically determined if we further require that the partition function with soliton background be a τ function of the KP hierarchy, in addition to the W1+∞ constraint. ∗ e-mail address: [email protected] † e-mail address: [email protected]...
متن کاملCombinatorics of boundaries in string theory.
It is essential to develop a nonperturbative understanding of string theory. The discovery of unusually large nonperturbative effects, of order e ~' gst~, is likely to be an important clue. These effects are found in matrix models and are expected more generally from the large-order behavior of string perturbation theory [1], but they have no field-theory analogue and their nature is not in gen...
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 of Theoretical Physics
سال: 1988
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.79.936