New variables for (1 + 1)-dimensional gravity
نویسندگان
چکیده
منابع مشابه
Geometric Structures and Loop Variables in (2+1)-Dimensional Gravity
Ashtekar’s connection representation for general relativity [1, 2] and the closely related loop variable approach [3] have generated a good deal of excitement over the past few years. While it is too early to make firm predictions, there seems to be some real hope that these new variables will allow the construction of a consistent nonperturbative quantum theory of gravity. Some important progr...
متن کاملIntegrable 1+1 Dimensional Gravity Models
Integrable models of dilaton gravity coupled to electromagnetic and scalar matter fields in dimensions 1+1 and 0+1 are reviewed. The 1+1 dimensional integrable models are either solved in terms of explicit quadratures or reduced to the classically integrable Liouville equation. The 0+1 dimensional integrable models emerge as sectors in generally non integrable 1+1 dimensional models and can be ...
متن کاملNew Loop Representations for 2+1 Gravity
Since the gauge group underlying 2+1-dimensional general relativity is non-compact, certain difficulties arise in the passage from the connection to the loop representations. It is shown that these problems can be handled by appropriately choosing the measure that features in the definition of the loop transform. Thus, “old-fashioned” loop representations – based on ordinary loops – do exist. I...
متن کامل(non-)conservation in (1+1)-dimensional dilaton gravity
We consider branching of baby universes off parent one in (1+1)-dimensional dilaton gravity with 24 types of conformal matter fields. This theory is equivalent to string theory in a certain background in D = 26-dimensional target space, so this process may be also viewed as the emission of a light string state by a heavy string. We find that bare energy is not conserved in (1+1) dimensions due ...
متن کاملA New Integrable Model of (1+1)-Dimensional Dilaton Gravity Coupled to Toda Matter
A new class of integrable two-dimensional dilaton gravity theories, in which scalar matter fields satisfy the Toda equations, is proposed. The simplest case of the Toda system is considered in some detail, and on this example we outline how the general solution can be obtained. We also demonstrate how the wave-like solutions of the general Toda systems can be simply derived. In the dilaton grav...
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: Classical and Quantum Gravity
سال: 2009
ISSN: 0264-9381,1361-6382
DOI: 10.1088/0264-9381/27/2/025002