scholarly journals Universal properties of the near-horizon geometry

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
Sebastian Murk ◽  
Daniel R. Terno
1991 ◽  
Vol 56 (3) ◽  
pp. 901-905
Author(s):  
Kees Doets
Keyword(s):  

2020 ◽  
Vol 2020 (9) ◽  
Author(s):  
Mehrdad Mirbabayi

Abstract We propose a Euclidean preparation of an asymptotically AdS2 spacetime that contains an inflating dS2 bubble. The setup can be embedded in a four dimensional theory with a Minkowski vacuum and a false vacuum. AdS2 approximates the near horizon geometry of a two-sided near-extremal Reissner-Nordström black hole, and the two sides can connect to the same Minkowski asymptotics to form a topologically nontrivial worm- hole geometry. Likewise, in the false vacuum the near-horizon geometry of near-extremal black holes is approximately dS2 times 2-sphere. We interpret the Euclidean solution as describing the decay of an excitation inside the wormhole to a false vacuum bubble. The result is an inflating region inside a non-traversable asymptotically Minkowski wormhole.


2020 ◽  
Vol 102 (12) ◽  
Author(s):  
E. Buk ◽  
J. Lewandowski ◽  
A. Szereszewski

1996 ◽  
Vol 180 (2) ◽  
pp. 402-411 ◽  
Author(s):  
Roy O. Davies ◽  
Michael P. Drazin ◽  
Mark L. Roberts

1997 ◽  
Vol 08 (03) ◽  
pp. 357-374 ◽  
Author(s):  
Kengo Matsumoto

We construct and study C*-algebras associated with subshifts in symbolic dynamics as a generalization of Cuntz–Krieger algebras for topological Markov shifts. We prove some universal properties for the C*-algebras and give a criterion for them to be simple and purely infinite. We also present an example of a C*-algebra coming from a subshift which is not conjugate to a Markov shift.


2015 ◽  
Vol 51 (3) ◽  
pp. 293-305
Author(s):  
RICHARD SWINBURNE

AbstractHumans are pure mental substances, that is essentially souls, who have a rich mental life of sensations, thoughts, intentions, and other pure mental events, largely caused by and sometimes causing events in their brains and so in their bodies. God has reason to create humans because humans have a kind of goodness, the ability to choose between good and evil, which God himself does not have. The existence of these causal connections between mental events and brain events requires an enormous number of separate psychophysical laws. It is most improbable that there would be such laws if God had not made them. Each soul has a thisness; it is the particular soul it is quite independently of its mental properties and bodily connections. So no scientific law, concerned only with relations between substances in virtue of their universal properties, could explain why God created this soul rather than that possible soul, and connected it to this body. Yet a rational person often has to choose between equally good alternatives on non-rational grounds; and so there is nothing puzzling about God choosing to create this soul rather than that possible soul. Hence the existence of souls provides a good argument for the existence of God.


2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Filip Morisse ◽  
Eleonore Vandemaele ◽  
Claudia Claes ◽  
Lien Claes ◽  
Stijn Vandevelde

The field of intellectual disability (ID) is strongly influenced by the Quality of Life paradigm (QOL). We aimed at investigating whether or not the QOL paradigm also applies to clients with ID and cooccurring mental health problems. This paper aims at stimulating a debate on this topic, by investigating whether or not QOL domains are universal. Focus groups with natural and professional network members were organized to gather qualitative data, in order to answer two questions: (1) Are the QOL dimensions conceptualized in the model of Schalock et al. applicable for persons with ID and mental health problems? (2) What are indicators relating to the above-mentioned dimensions in relation to persons with ID and mental health problems? The results offer some proof for the assumption that the QOL construct seems to have universal properties. With regard to the second question, the study revealed that the natural and professional network members are challenged to look for the most appropriate support strategies, taking specific indicators of QOL into account. When aspects of empowerment and regulation are used in an integrated manner, the application of the QOL paradigm could lead to positive outcomes concerning self-determination, interdependence, social inclusion, and emotional development.


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