Two – Dimensional Conformal Field Theory and Beyond . Lessons from a Continuing Fashion
نویسنده
چکیده
Two-dimensional conformal field theory (CFT) has several sources: the search for simple examples of quantum field theory, the description of surface critical phenomena, the study of (super)string vacua. In the present overview of the subject we emphasize the role of CFT in bridging the gap between mathematics and quantum field theory and discuss some new physical concepts that emerged in the study of CFT models: anomalous dimensions, rational CFT, braid group statistics. In an aside, at the end of the paper, we share the misgivings, recently expressed by Penrose, about some dominant trends in fundamental theo-
منابع مشابه
نظریه میدان اسکالر کلاسیک با تقارن همدیس و پتانسیل نامثبت
We review the conformal symmetry group and investigate the isomorphism between the conformal group and O( D,2 ) . We study the classically conformal invariant scalar theory in D -dimensions with a non-positive potential . We solve the equations of motion by assigning O(D-1, 2)symmetry to the classical solutions with broken translational symmetry in all directions. Then we consider a six d...
متن کاملConformal Field Theories: From Old to New
In a short review of recent work, we discuss the general problem of constructing the actions of new conformal field theories from old conformal field theories. Such a construction follows when the old conformal field theory admits new conformal stress tensors in its chiral algebra, and it turns out that the new conformal field theory is generically a new spin-two gauge theory. As an example we ...
متن کاملThe Analytic Geometry of Two-dimensional Conformal Field Theory*
Some years ago, Polyakov [1] proposed constructing all conformally invariant quan tum field theories by using the constraint of conformal invariance to make concrete the fundamental principles of quantum field theory. This is the conformal boots t rap program. Conformal field theories describe the universality classes of critical phenomena, or equivalently the short distance limits of quantum f...
متن کاملTwo-Time Physics in Field Theory
A field theory formulation of two-time physics in d + 2 dimensions is obtained from the covariant quantization of the constraint system associated with the OSp(n|2) worldline gauge symmetries of two-time physics. Interactions among fields can then be included consistently with the underlying gauge symmetries. Through this process a relation between Dirac’s work in 1936 on conformal symmetry in ...
متن کاملImproving continuing medical education by enhancing interactivity: lessons from Iran
Introduction: Continuing Medical Education (CME) has beenconsidered as a lifelong commitment for doctors to provide theoptimal care for patients. Despite a long history of creating CMEprograms, outcomes are far from ideal. The present qualitativestudy aims to clarify the barriers affecting effectiveness of the CMEprograms in Iran based on the experiences of general practitioners.Methods: Sixtee...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2001