Results 61 to 70 of about 71,166 (260)

What does inflation really predict?

, 2004
If the inflaton potential has multiple minima, as may be expected in, e.g., the string theory "landscape", inflation predicts a probability distribution for the cosmological parameters describing spatial curvature (Omega_tot), dark energy (rho_Lambda, w,
Acharya B S Denef F Valandro R, Aguirre A, Aguirre A, Aguirre A Tegmark M, Albrecht A Sorbo L, Arkani-Hamed N, Arkani-Hamed N Dimopoulos S Kachru S, Ashok S, Babich D, Balashov Y V, Banks T, Banks T, Barnard M Albrecht A, Barrow J D, Boström N, Bousso R, Carlstrom J E Kovac J Leitch E M Pryke C, Carter B S Longair, Coleman S, Conlon J, de Oliveira-Costa A, Denef F, DeWolfe O, DeWolfe O Giryavets A Kachru S Taylor W, Dodelson S, Donagi R He Y Ovrut B A Reinbacher R, Efstathiou G, Freivogel B Susskind L, Garcia-Bellido J, Garcia-Bellido J, Garriga J, Garriga J, Giryavets A, Giulini D, Gordon C, Guth A, Guth A H, Guth A H, Hannestad S, Hoffman M, Hossain G M, Huang Q G Li M, Kachru S, Kachru S, Kachru S Kallosh R Linde A Maldacena J McAllister L Trivedi S P, Kiefer K, Kinney W H, Kinney W H Kolb E W Melchiorri A Riotto A, Liddle A R, Linde A, Linde A, Linde A, Linde A D, Linde A D, Linde A D, Linde A D, Linde A D, Linde A D, Max Tegmark, Pogosian L, Polarski D, Rees M J, Riess A G, Seljak U, Smolin L, Starobinsky A A, Starobinsky A A, Starobinsky A A, Steinhardt P J, Susskind L, Tegmark M, Tegmark M Vilenkin A Pogosian L, Vanchurin A, Vilenkin A, Vilenkin A, Vilenkin A, Wang Y Tegmark M, White S D M, Wilczek F, Winitzki S   +79 more
core   +1 more source

Can the Universe escape eternal acceleration? [PDF]

, 2000
Recent astronomical observations of distant supernovae light-curves suggest that the expansion of the universe has recently begun to accelerate.
Albrecht, Barrow, Frieman, Garnavich, John D. Barrow, João Magueijo, Perlmutter, Perlmutter, Rachel Bean, Riess, Schmidt, Zlatev   +11 more
core   +2 more sources

Exploiting Ferroelectric and Spintronic Dynamics for Neural Network Computation

Advanced Intelligent Systems, EarlyView.
Ferroelectric and spintronic devices, relying on the control of polarization and magnetization, offer intrinsically fast, durable, energy‐efficient, and low‐latency building blocks for analog in‐memory computing. The hysteretic dynamics of an order parameter are leveraged to provide nonvolatile, multistate memory and nonlinear switching. Brain‐inspired
Dashiell Harrison, Kevin Nadaud, Josquin Harrison, Guillaume F. Nataf, Laura Bégon‐Lours   +4 more
wiley   +1 more source

Giovanni Botero on Religion and Politics

Religions
Giovanni Botero’s political thought is significantly influenced by Machiavelli, yet it possesses its own distinctive features, particularly in its religious perspective.
Xin Zhu
doaj   +1 more source

A status report on the observability of cosmic bubble collisions

, 2009
In the picture of eternal inflation as driven by a scalar potential with multiple minima, our observable universe resides inside one of many bubbles formed from transitions out of a false vacuum.
Aguirre A, Aguirre A Johnson M C Tysanner M, Anthony Aguirre, Bailin D, Banks T, Blanco-Pillado J J Schwartz-Perlov D Vilenkin A, Bousso R Freivogel B Yang I-S, Bucher M, Chang S Kleban M Levi T S, Chang S Kleban M Levi T S, Dahlen A, Easther R Giblin J John T Hui L Lim E A, Fischler W, Freivogel B Horowitz G T Shenker S, Freivogel B Kleban M, Freivogel B Kleban M Nicolis A Sigurdson K, Garcia-Bellido J, Guth A H, Komatsu E, Larjo K Levi T S, Linde A, Linde A, Matthew C Johnson, Rakic A Simon D Adamek J Niemeyer J C, Rakic A Simon D Adamek J Niemeyer J C   +24 more
core   +1 more source

Solutions to the cosmological constant problems [PDF]

, 2001
We critically review several recent approaches to solving the two cosmological constant problems. The "old" problem is the discrepancy between the observed value of $\Lambda$ and the large values suggested by particle physics models.
A. J. Riess, A. Linde, A. Vilenkin, A. Vilenkin, A. Vilenkin, A. Vilenkin, B. Schmidt, C. Armendáriz-Picon, C. Armendáriz-Picon, E. Guendelman, G. Dvali, G. Efstathiou, G. W. Gibbons, H. Martel, J. D. Barrow, J. D. Brown, J. Donoghue, J. Garriga, J. Garriga, J. Garriga, J. Garriga, J. Garriga, J. Garriga, J. Garriga, J. Garriga, J. Garriga, J. L. Feng, K. Lee, K. Lee, L. Abbot, L. F. Abbot, M. Tegmark, N. Arkani-Hamed, N. Deruelle, P. C. W. Davies, P. G. O. Freund, P. G. O. Freund, R. Basu, R. Bousso, R. Kallosh, S. Bludman, S. Coleman, S. Coleman, S. Giddings, S. Perlmutter, S. Perlmutter, S. Weinberg, S. Weinberg, S. Weinberg, S. Weinberg, T. Banks, T. Banks, V. Vanchurin, W. H. Press   +53 more
core   +3 more sources

Artificial Intelligence Challenges for Knowledge Innovation Cycles

AI &Innovation, EarlyView.
ABSTRACT This article focuses on knowledge innovation and its contemporary reshaping, with particular attention to the growing role of AI in this process. This article first examines the general structure and phases of knowledge innovation cycles, aiming to identify AI's role within them.
Aharon Kellerman
wiley   +1 more source

A geometric solution to the coincidence problem, and the size of the landscape as the origin of hierarchy

, 2010
Without assuming necessary conditions for observers such as galaxies or entropy production, we show that the causal patch measure predicts the coincidence of vacuum energy and present matter density.
Bousso, Raphael, Freivogel, Ben, Leichenauer, Stefan, Rosenhaus, Vladimir   +3 more
core   +1 more source

Tocqueville's Christian Citzen [PDF]

, 2005
Tocqueville's Christian Citizen Marinus Ossewaarde Introduction Alexis De Tocqueville is well known for his critique of democracy. A French statesman, he was left with the legacy of the French Revolution that had torn his fatherland and had changed the ...
Ossewaarde, Marinus
core   +3 more sources

Causal analysis of trade loss from pathogens: A global study of foot and mouth disease impacts on meat exports

American Journal of Agricultural Economics, EarlyView.
Abstract Our general interest is in global trade loss from livestock pathogens, specifically exports. We adopt a causal inference approach that considers animal disease outbreaks over time as non‐staggered binary treatments with the potential for switching in (infection) and out of treatment (recovery) within the sample period. The outcome evolution of
Mohammad Maksudur Rahman, Thomas L. Marsh   +1 more
wiley   +1 more source