Zobrazeno 1 - 10
of 19 649
pro vyhledávání: '"Rovelli, A."'
We show that the notion of $(\infty,n)$-limit defined using the enriched approach and the one defined using the internal approach coincide. We also give explicit constructions of various double $(\infty,n-1)$-categories implementing various join cons
Externí odkaz:
http://arxiv.org/abs/2408.04742
Autor:
Rovelli, Carlo, Wolpert, David
Are you, with your perceptions, memories and observational data, a Boltzmann brain, namely a fleeting statistical fluctuation out of the thermal equilibrium of the universe? Arguments are given in the literature claiming that this bizarre hypothesis
Externí odkaz:
http://arxiv.org/abs/2407.13197
Autor:
Rovelli, Carlo, Vidotto, Francesca
This is a review of some recent developments on quantum gravity aspects of black hole physics. In particular, we focus on a scenario leading to the prediction of the existence of a Planck-mass quasi-stable object, that could form a component of dark
Externí odkaz:
http://arxiv.org/abs/2407.09584
It is often stated that the second law of thermodynamics follows from the condition that at some given time in the past the entropy was lower than it is now. Formally, this condition is the statement that $E[S(t)|S(t_0)]$, the expected entropy of the
Externí odkaz:
http://arxiv.org/abs/2407.02840
Autor:
Rovelli, Carlo
These are lectures notes prepared for a series of seminars I am invited to give at Princeton Philosophy Department in November 2024. They cover the conceptual structure of quantum gravity, the relational interpretation of quantum mechanics, the struc
Externí odkaz:
http://arxiv.org/abs/2407.01989
Autor:
HUGGETT, NICK (AUTHOR), ROVELLI, CARLO (AUTHOR)
Publikováno v:
Scientific American. Sep2024, Vol. 331 Issue 2, p64-69. 6p. 7 Diagrams, 1 Cartoon or Caricature.
We prove that a certain $\omega$-category, which was constructed in previous work by the third and fourth author, is a model for the fully coherent walking $\omega$-equivalence. Further, appropriate truncations of it give models for the fully coheren
Externí odkaz:
http://arxiv.org/abs/2404.14509
Autor:
Di Biagio, Andrea, Rovelli, Carlo
An influential theorem by Satosi Watanabe convinced many that there can be no physical probabilistic theory with both non-trivial forward and backward transition probabilities. We show that this conclusion does not follow from the theorem. We point o
Externí odkaz:
http://arxiv.org/abs/2403.01062
Publikováno v:
Phys. Rev. D 109, 106016 (2024)
Quantum gravitational tunneling effects are expected to give rise to a number of interesting observable phenomena, including, in particular, the evolution of black holes at the end of their existence or the emergence of the early universe from a quan
Externí odkaz:
http://arxiv.org/abs/2402.09038
We define limits for diagrams valued in an $(\infty,n)$-category. As a model of $(\infty,n)$-categories, we use complete Segal objects in $(\infty,n-1)$-categories. We show that this definition is compatible with the existing notion of homotopy 2-lim
Externí odkaz:
http://arxiv.org/abs/2312.11101