Results 41 to 50 of about 619,673 (171)

Black Hole Statistics from Holography

, 2005
We study the microstates of the ``small'' black hole in the $\half$-BPS sector of AdS$_5\times S^5$, the superstar of Myers and Tafjord, using the powerful holographic description provided by LLM. The system demonstrates the inherently statistical nature
A. Buchel, D. Berenstein, G. Milanesi, H. Lin, I. Bena, I.R. Klebanov, M.M. Caldarelli, M.M. Sheikh-Jabbari, M.M. Sheikh-Jabbari, N.V. Suryanarayana, P. Berglund, P. Horava, Peter G Shepard, R.C. Myers, S. Corley, S.S. Gubser, V. Balasubramanian, V. Balasubramanian   +17 more
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Asymptotic degeneracy of dyonic N=4 string states and black hole entropy

, 2004
It is shown that the asymptotic growth of the microscopic degeneracy of BPS dyons in four-dimensional N=4 string theory captures the known corrections to the macroscopic entropy of four-dimensional extremal black holes.
A. Dabholkar, A. Dabholkar, A. Sen, B. de Wit, C. Vafa, G.L Cardoso, G.L. Cardoso, J Käppeli, J.A. Harvey, J.M. Maldacena, S. Ferrara, S. Ferrara, T Mohaupt, V. Hubeny, V.A. Gritsenko   +14 more
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A comprehensive review of computer vision for reservoir modelling and data assimilation

Discover Applied Sciences
The integration of computer vision (CV) techniques into reservoir modeling and data assimilation is reshaping petroleum engineering, driven by advances in machine learning and the growing availability of high-resolution imaging data.
Alireza Kazemi
doaj   +1 more source

Can Mutual Fund Managers Pick Stocks? Evidence from the Trades Prior to Earnings Announcements [PDF]

We test whether fund managers have stock-picking skill by comparing their holdings and trades prior to earnings announcements with the returns realized at those events.
Jeffrey Wurgler, Jessica A. Wachter, Lubomir Litov, Malcolm Baker   +3 more
core  

Active repositioning of storage units in Robotic Mobile Fulfillment Systems

, 2018
In our work we focus on Robotic Mobile Fulfillment Systems in e-commerce distribution centers. These systems were designed to increase pick rates by employing mobile robots bringing movable storage units (so-called pods) to pick and replenishment ...
J Gu, P Wurman, T Lamballais
core   +1 more source

Evolution of FLRW spacetime after the birth of a cosmic string

, 2012
We consider the evolution of an initially FLRW universe after the formation of a long, straight, cosmic string with arbitrary tension and mass per unit length.
A. Achucarro, A. Vilenkin, A. A. Abrikosov, C. Hogan, J. F. Annett, M. Gasperini, M. R. Anderson, Matthew Lake, P. Olesen, Robert M. Wald, Teruaki Suyama, V. Berezinsky, Ya. B. Zeldovich   +12 more
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Black Hole Horizons and Thermodynamics: A Quantum Approach

, 2010
We focus on quantization of the metric of a black hole restricted to the Killing horizon with universal radius $r_0$. After imposing spherical symmetry and after restriction to the Killing horizon, the metric is quantized employing the chiral currents ...
Bratteli, Bratteli, Di Francesco, Fursaev, Guido, Haag, Kac, Nicola Pinamonti, Popov, Schmidt, Valter Moretti   +10 more
core   +2 more sources

Dumb Money: Mutual Fund Flows and the Cross-Section of Stock Returns [PDF]

We use mutual fund flows as a measure for individual investor sentiment for different stocks, and find that high sentiment predicts low future returns at long horizons.
Andrea Frazzini, Owen A. Lamont
core  

Non-relativistic metrics from back-reacting fermions

, 2010
It has recently been pointed out that under certain circumstances the back-reaction of charged, massive Dirac fermions causes important modifications to AdS_2 spacetimes arising as the near horizon geometry of extremal black holes. In a WKB approximation,
Adams A, Adams A, Aninda Sinha, Anninos D, Balasubramanian K, Birrell N D, Clement G, Clement G, de Boer J Papadodimas K Verlinde E, Detournay S, Dileep P Jatkar, Faulkner T Liu H McGreevy J Vegh D, Hartnoll S A, Herzog C P, Herzog C P, Horava P Melby-Thompson C M, Horowitz G T, Imeroni E, Kachru S Liu X Mulligan M, Li W, Ling-Yan Hung, Liu H McGreevy J Vegh D, Maity D Sarkar S Sircar N Sathiapalan B Shankar R, Maldacena J, McGreevy J, Reinhard P G, Schafer T   +26 more
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Gravitational waves from kinks on infinite cosmic strings

, 2010
Gravitational waves emitted by kinks on infinite strings are investigated using detailed estimations of the kink distribution on infinite strings. We find that gravitational waves from kinks can be detected by future pulsar timing experiments such as SKA
A. Vilenkin, Kazunori Nakayama, Koichi Miyamoto, Masahiro Kawasaki, S. Weinberg   +4 more
core   +1 more source