On open theories
نویسندگان
چکیده
منابع مشابه
On Noncommutative Open String Theories
We investigate new compactifications of OM theory giving rise to a 3+1 dimensional open string theory with noncommutative x-x and x-x coordinates. The theory can be directly obtained by starting with a D3 brane with parallel (near critical) electric and magnetic field components, in the presence of a RR scalar field. The magnetic parameter permits to interpolate continuously between the x-x non...
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String diagrams are a powerful tool for reasoning about physical processes, logic circuits, tensor networks, and many other compositional structures. The distinguishing feature of these diagrams is that edges need not be connected to vertices at both ends, and these unconnected ends can be interpreted as the inputs and outputs of a diagram. In this paper, we give a concrete construction for str...
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We review the recent studies of tachyon condensation in string field theory. After introducing the open string field theory both for bosonic string and for superstring, we use them to examine the conjecture that the unstable configurations of the D-brane will decay into the ‘closed string vacuum’ through the tachyon condensation. And we describe the attemps to construct a lower dimensional boso...
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In this paper we compare two approaches to the meaning of a free variable x in an open default α(x) : β1(x), . . . , βm(x) γ(x) . The first treats x as a metavariable for the ground terms of the underlying theory, whereas the second treats it as a “name” of arbitrary elements of the theory universe. We show that, for normal default theories, under the domain closure assumption, the two approach...
متن کاملNoncommutative Open String Theories and Their Dualities
The recently found non-critical open string theories is reviewed. These open strings, noncommutative open string theories (NCOS), arise as consistent quantum theories describing the low energy theory of D-branes in a background electric B-field in the critical limit. Focusing on the D3-brane case, we construct the most general (3+1) NCOS, which is described by four parameters. We study S and T ...
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ژورنال
عنوان ژورنال: Colloquium Mathematicum
سال: 1962
ISSN: 0010-1354,1730-6302
DOI: 10.4064/cm-9-2-171-182