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Relational EPR

- M. Smerlak, C. Rovelli
- Physics
- 10 April 2006

TLDR

The predator-prey power law: Biomass scaling across terrestrial and aquatic biomes

TLDR

Thermal time and Tolman–Ehrenfest effect: ‘temperature as the speed of time’

- C. Rovelli, M. Smerlak
- Physics
- 17 May 2010

The notion of thermal time has been introduced as a possible basis for a fully general-relativistic thermodynamics. Here we study this notion in the restricted context of stationary spacetimes. We… Expand

Entanglement entropy and negative energy in two dimensions

- Eugenio Bianchi, M. Smerlak
- Physics
- 2 April 2014

It is well known that quantum effects can produce negative energy densities, though for limited times. Here we show in the context of two-dimensional CFT that such negative energy densities are… Expand

Last gasp of a black hole: unitary evaporation implies non-monotonic mass loss

- Eugenio Bianchi, M. Smerlak
- Physics
- 16 May 2014

We show within the usual two-dimensional approximation that unitarity and the restoration of Minkowski vacuum correlations at the end of black hole evaporation impose unexpected constraints on its… Expand

Bubble Divergences from Cellular Cohomology

- V. Bonzom, M. Smerlak
- Mathematics
- 29 April 2010

We consider a class of lattice topological field theories, among which are the weak-coupling limit of 2d Yang–Mills theory, the Ponzano–Regge model of 3d quantum gravity and discrete BF theory, whose… Expand

Scaling behavior of three-dimensional group field theory

- J. Magnen, K. Noui, V. Rivasseau, M. Smerlak
- Physics
- 30 June 2009

Group field theory is a generalization of matrix models, with triangulated pseudomanifolds as Feynman diagrams and state sum invariants as Feynman amplitudes. In this paper, we consider Boulatov's… Expand

Entanglement entropy production in gravitational collapse: covariant regularization and solvable models

- Eugenio Bianchi, Tommaso De Lorenzo, M. Smerlak
- Physics
- 30 August 2014

A bstractWe study the dynamics of vacuum entanglement in the process of gravitational collapse and subsequent black hole evaporation. In the first part of the paper, we introduce a covariant… Expand

Bubble Divergences: Sorting out Topology from Cell Structure

- V. Bonzom, M. Smerlak
- Mathematics
- 21 March 2011

We conclude our analysis of bubble divergences in the flat spinfoam model. In Bonzom and Smerlak, Comm. Math. Phys., (submitted), we showed that the divergence degree of an arbitrary 2-complex Γ can… Expand

In quantum gravity, summing is refining

- C. Rovelli, M. Smerlak
- Physics
- 26 October 2010

In perturbative QED, the approximation is improved by summing more Feynman graphs, while in non-perturbative QCD, by refining the lattice. Here we observe that in quantum gravity, the two procedures… Expand

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