By its very nature, the second law of thermodynamics is probabilistic, in that its formulation
requires a probabilistic description of the state of a system. This raises questions about the …

As we navigate through life we instinctively model time as having a flowing present that
divides a fixed past from open future. This model develops in childhood and is deeply …

Time remains one of the least well-understood concepts in physics, most notably in quantum
mechanics. A central goal is to find the fundamental limits of measuring time. One of the …

This article reviews thermodynamic relationships in the brain in an attempt to consolidate
current research in systems neuroscience. The present synthesis supports proposals that …

Microscopic physical laws are time-symmetric, hence, a priori there exists no preferential
temporal direction. However, the second law of thermodynamics allows one to associate the …

The symmetry of quantum theory under time reversal has long been a subject of controversy
because the transition probabilities given by Born's rule do not apply backward in time …

The standard formulation of quantum theory assumes a predefined notion of time. This is a
major obstacle in the search for a quantum theory of gravity, where the causal structure of …

The operational formulations of quantum theory are drastically time oriented. However, to
the best of our knowledge, microscopic physics is time-symmetric. We address this tension …

Why do we remember the past, and plan the future? We introduce a toy model in which to
investigate emergent time asymmetries: the causal multibaker maps. These are reversible …

Why do we have records of the past and not the future? Entropic explanations for this 'record
asymmetry'have been popular ever since Boltzmann. Foremost amongst these is Albert and …