Spacetime in String Theory: A Conceptual Clarification
نویسندگان
چکیده
منابع مشابه
Spacetime in String Theory
We give a brief overview of the nature of spacetime emerging from string theory. This is radically different from the familiar spacetime of Einstein’s relativity. At a perturbative level, the spacetime metric appears as “coupling constants” in a two dimensional quantum field theory. Nonperturbatively (with certain boundary conditions), spacetime is not fundamental but must be reconstructed from...
متن کاملDEVELOPMENT 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 کاملSpacetime foam in twistor string theory
We show how a Kähler spacetime foam in four dimensional conformal (super)gravity may be mapped to twistor spaces carrying the D1 brane charge of the B model topological string theory. The spacetime foam is obtained by blowing up an arbitrary number of points in C and can be interpreted as a sum over gravitational instantons. Some twistor spaces for blowups of C are known explicitly. In these ca...
متن کاملArithmetic Spacetime Geometry from String Theory
An arithmetic framework to string compactification is described. The approach is exemplified by formulating a strategy that allows to construct geometric compactifications from exactly solvable theories at c = 3. It is shown that the conformal field theoretic characters can be derived from the geometry of spacetime, and that the geometry is uniquely determined by the two-dimensional field theor...
متن کاملBlack Holes and Spacetime Physics in String/M Theory
In addition to briefly reviewing recent progress in studying black hole physics in string/M theory, we describe several robust features pertaining to spacetime physics that one can glean by studying quantum physics of black holes. In particular, we review ’t Hooft’s S-matrix ansatz which results in a noncommutative horizon. A recent construction of fuzzy AdS2 is emphasized, this is a nice toy m...
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: Journal for General Philosophy of Science
سال: 2018
ISSN: 0925-4560,1572-8587
DOI: 10.1007/s10838-018-9423-2