scholarly journals A NOTE ON WEYL TRANSFORMATIONS IN TWO-DIMENSIONAL DILATON GRAVITY

2000 ◽  
Vol 15 (34) ◽  
pp. 2113-2118 ◽  
Author(s):  
MARCO CAVAGLIÀ
Keyword(s):  
Conformal Transformations ◽  
Two Dimensional ◽  
Dilaton Gravity ◽  
Gravity Theories

We discuss Weyl (conformal) transformations in two-dimensional matterless dilaton gravity. We argue that both classical and quantum dilaton gravity theories are invariant under Weyl transformations.

scholarly journals A NOTE ON TWO-DIMENSIONAL DILATON GRAVITY WITH NON-SMOOTH POTENTIALS

2005 ◽  
Vol 20 (14) ◽  
pp. 1057-1064
Author(s):  
CHRISTIAN G. BÖHMER ◽  
PIOTR BRONOWSKI
Keyword(s):  
Exact Solutions ◽  
Brane World ◽  
Two Dimensional ◽  
Dilaton Gravity ◽  
First Order ◽  
Recent Interest ◽  
Different Types ◽  
Gravity Theories

Recent interest in brane world models motivates the investigation of generic first-order dilaton gravity actions, with potentials having some non-smoothness. We consider two different types of δ-like contributions in the action and analyse their effects on the solutions. Furthermore a second source of non-smoothness arises due to the remaining ambiguities in the solutions in the separated smooth patches, after fixing all other constants by matching and asymptotic conditions. If moreover staticity is assumed, we explicitly construct exact solutions. With the methods described, for example models with point like sources or brane world models (where the second source of non-smoothness becomes crucial), can now be treated as non-smooth dilaton gravity theories.

scholarly journals THERMODYNAMIC DUALITY BETWEEN RN BLACK HOLE AND 2D DILATON GRAVITY

2008 ◽  
Vol 23 (02) ◽  
pp. 91-98 ◽  
Author(s):  
YUN SOO MYUNG ◽  
YONG-WAN KIM ◽  
YOUNG-JAI PARK
Keyword(s):  
Black Hole ◽  
Thermodynamic Quantities ◽  
Two Dimensional ◽  
Dilaton Gravity ◽  
Horizon Thermodynamics

All thermodynamic quantities of the Reissner–Nordström (RN) black hole can be obtained from the dilaton and its potential of two-dimensional (2D) dilaton gravity. The dual relations of four thermodynamic laws are also established. Furthermore, the near-horizon thermodynamics of the extremal RN black hole is completely described by the Jackiw–Teitelboim theory which is obtained by perturbing around the AdS2-horizon.

scholarly journals Exactly solvable charged dilaton gravity theories in two dimensions

1998 ◽  
Vol 15 (10) ◽  
pp. 2973-2979 ◽  
Author(s):  
Youngjai Kiem ◽  
Chang-Yeong Lee ◽  
Dahl Park
Keyword(s):  
Two Dimensions ◽  
Dilaton Gravity ◽  
Exactly Solvable ◽  
Gravity Theories

scholarly journals Diffeomorphisms, Noether charges, and the canonical formalism in two-dimensional dilaton gravity

1995 ◽  
Vol 52 (12) ◽  
pp. 6831-6839 ◽  
Author(s):  
José Navarro-Salas ◽  
Miguel Navarro ◽  
César F. Talavera
Keyword(s):  
Canonical Formalism ◽  
Two Dimensional ◽  
Dilaton Gravity
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