Musings on Firewalls and the Information Paradox
نویسنده
چکیده
The past year has seen an explosion of new and old ideas about black hole physics. Prior to the firewall paper, the dominant picture was the thermofield model apparently implied by anti-de Sitter conformal field theory duality. While some seek a narrow responce to Almheiri, Marolf, Polchinski, and Sully (AMPS) , there are a number of competing models. One problem in the field is the ambiguity of the competing proposals. Some are equivalent while others incompatible. This paper will attempt to define and classify a few models representative of the current discussions.
منابع مشابه
Information Preservation and Weather Forecasting for Black Holes∗
Holes∗ S. W. Hawking DAMTP, University of Cambridge, UK Abstract It has been suggested [1] that the resolution of the information paradox for evaporating black holes is that the holes are surrounded by firewalls, bolts of outgoing radiation that would destroy any infalling observer. Such firewalls would break the CPT invariance of quantum gravity and seem to be ruled out on other grounds. A dif...
متن کاملطراحی مدل بهبود بهرهوری با تأکید بر نقش فناوری اطلاعات
Nowadays improvement of productivity along with investment in IT is the most important goal of organizations. But at same time productivity statistics shown no improvement but rather a slow growth and that is itself has caused a paradox, namely "IT productivity paradox". This paradox has led the experts to question the productivity of IT seriously. The main purpose of this study is to examine t...
متن کاملThe Paradox of Health Policy: Revealing the True Colours of This ‘Chameleon Concept’; Comment on “The Politics and Analytics of Health Policy”
Health policy has been termed a ‘chameleon concept’, referring to its ability to take on different forms of disciplinarity as well as different roles and functions. This paper extends Paton’s analysis by exploring the paradox of health policy as a field of academic inquiry—sitting across many of the boundaries of social science but also marginalised by them. It situates contemporary approaches ...
متن کاملBertrand’s Paradox Revisited: More Lessons about that Ambiguous Word, Random
The Bertrand paradox question is: “Consider a unit-radius circle for which the length of a side of an inscribed equilateral triangle equals 3 . Determine the probability that the length of a ‘random’ chord of a unit-radius circle has length greater than 3 .” Bertrand derived three different ‘correct’ answers, the correctness depending on interpretation of the word, random. Here we employ geomet...
متن کاملPerformance and Information Security Evaluation with Firewalls
Firewalls are an essential part of any information security system being the first defense line against security attacks. The sea-saw effect between firewalls and network performance is most concerning to network users; where strict security settings result in weak network performance and permeant security settings allow for a stronger one. Hence, evaluating firewall platforms and their impact ...
متن کامل