Solving topological 2D quantum gravity using Ward identities
نویسندگان
چکیده
منابع مشابه
Solving Topological 2D Quantum Gravity Using Ward Identities
A topological procedure for computing correlation functions for any (1, q) model is presented. Our procedure can be used to compute any correlation function on the sphere as well as some correlation functions at higher genus. We derive new and simpler recursion relations that extend previously known results based on W constraints. In addition, we compute an effective contact algebra with multip...
متن کاملOn Equivalence of Topological and Quantum 2d Gravity
We demonstrate the equivalence of Virasoro constraints imposed on continuum limit of partition function of Hermitean 1-matrix model and the Ward identities of Kontsevich’s model. Since the first model describes ordinary d = 2 quantum gravity, while the second one is supposed to coincide with Witten’s topological gravity, the result provides a strong implication that the two models are indeed th...
متن کاملDamaging 2D Quantum Gravity
We investigate numerically the behaviour of damage spreading in a Kauffman cellular automaton with quenched rules on a dynamical φ graph, which is equivalent to coupling the model to discretized 2D gravity. The model is interesting from the cellular automaton point of view as it lies midway between a fully quenched automaton with fixed rules and fixed connectivity and a (soluble) fully annealed...
متن کاملQuenching 2D Quantum Gravity
We simulate the Ising model on a set of fixed random φ graphs, which corresponds to a quenched coupling to 2D gravity rather than the annealed coupling that is usually considered. We investigate the critical exponents in such a quenched ensemble and compare them with measurements on dynamical φ graphs, flat lattices and a single fixed φ graph. Submitted to Phys Lett B. 1 Address: Sept. 1993 199...
متن کاملWard Identities and Anomalies in Pure W 4 Gravity
W 4 gravity is treated algebraically, represented by a set of transformations on classical fields. The Ward identities of the theory are determined by requiring the algebra to close. The general forms for the anomalies are found by looking for solutions to the Wess-Zumino consistency conditions, and some specific cases are considered.
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: Nuclear Physics B
سال: 1993
ISSN: 0550-3213
DOI: 10.1016/0550-3213(93)90488-b