534 citations · 1.5k across the 33 of their papers we have counts for
12 papers · 1 filter
Hawking evaporation and the Landauer Principle
Marina Cortês, Andrew R Liddle
We show that Hawking black-hole evaporation saturates the Landauer Principle of information thermodynamics. Our result implies that information loss experienced by a black hole dur…
Higher Dimensional Energetic Causal Sets
Vasco Gil Gomes, Marina Cortês, Andrew R. Liddle
The energetic causal set (ECS) program of Cortês and Smolin, whose distinguishing feature is the foundational time irreversibility of the evolution equations of quantum gravity, wa…
The cosmology of minimal varying Lambda theories
Stephon Alexander, Marina Cortês, Andrew R. Liddle +3
Inserting a varying Lambda in Einstein's field equations can be made consistent with the Bianchi identities by allowing for torsion, without the need to add scalar field degrees of…
A Zero-Parameter Extension of General Relativity with Varying Cosmological Constant
Stephon Alexander, Marina Cortês, Andrew R. Liddle +3
We provide a new extension of general relativity (GR) which has the remarkable property of being more constrained than GR plus a cosmological constant, having one less free paramet…
Realism and Causality II: Retrocausality in Energetic Causal Sets
Eliahu Cohen, Marina Cortês, Avshalom C. Elitzur +1
We describe a new form of retrocausality, which is found in the behaviour of a class of causal set theories, called energetic causal sets (ECS). These are discrete sets of events,…
Reversing the irreversible: from limit cycles to emergent time symmetry
Marina Cortês, Lee Smolin
In 1979 Penrose hypothesized that the arrows of time are explained by the hypothesis that the fundamental laws are time irreversible. That is, our reversible laws, such as the stan…