宽宏大量
发表于 2025-3-26 21:00:25
Causal Sets: Discrete Gravity,These are some notes in lieu of the lectures I was scheduled to give, but had to cancel at the last moment. In some places, they are more complete, in others much less so, regrettably. I hope they at least give a feel for the subject and convey some of the excitement felt at the moment by those of us working on it.
粘
发表于 2025-3-27 01:50:04
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Cupidity
发表于 2025-3-27 05:34:12
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venous-leak
发表于 2025-3-27 11:11:29
Billiard Dynamics of Einstein-Matter Systems Near a Spacelike Singularity,d, at each spatial point, as a billiard motion in a region of hyperbolic space. This is done within the Hamiltonian formalism. A key rôle is played in the derivation by the Iwasawa decomposition of the spatial metric. We also comment on the strong coupling/small tension limit of the theory.
大方一点
发表于 2025-3-27 13:37:39
1571-571X 2.The 2002 Pan-American Advanced Studies Institute School on Quantum Gravity was held at the Centro de Estudios Cientificos (CECS),Valdivia, Chile, January 4-14, 2002. The school featured lectures by ten speakers, and was attended by nearly 70 students from over 14 countries. A primary goal was to f
Incommensurate
发表于 2025-3-27 20:06:17
Lectures on D-branes, Tachyon Condensation, and String Field Theory,y. An introduction is given to Witten’s cubic open bosonic string field theory. The Sen conjectures on tachyon condensation in open bosonic string field theory are introduced, and evidence confirming these conjectures is reviewed.
并排上下
发表于 2025-3-27 22:21:51
Book 2005uary 4-14, 2002. The school featured lectures by ten speakers, and was attended by nearly 70 students from over 14 countries. A primary goal was to foster interaction and communication between participants from different cultures, both in the layman’s sense of the term and in terms of approaches to
EXPEL
发表于 2025-3-28 04:07:52
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方舟
发表于 2025-3-28 09:00:36
Thermaldecay of the Cosmological Constant into Black Holes,f the vacuum energy associated with the cosmological constant. We study here the corresponding Euclidean configurations (“thermalons”) and calculate the probability for the process in the leading semiclassical approximation.
可憎
发表于 2025-3-28 11:37:39
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