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6 giorni fa · Moreover, the decoherent arrow might be more useful for understanding the behaviour of the universe. “For the thermodynamic arrow of time, you're sort of zooming out,” says Al-Khalili, meaning there is a degree of subjectivity in measuring its precise properties. “The decoherent arrow of time is a bit more objective,” he says.
28 mag 2024 · According to an article on the work in New Scientist, this phenomenon inspired the idea of the decoherent arrow of time, suggesting that because decoherence is irreversible, it could be the fundamental reason why time flows forward and not backward.
27 mag 2024 · One way to explain why time only moves forward is the quantum arrow of time, and it has major implications for both the universe's early period and its eventual demise. By Leah Crane. 27 May...
9 mag 2024 · The purpose of this note is to demystify the arrow of time by stripping off the unnecessary complexities and thereby simplifying the discussion. We do this by providing examples that are exactly solvable and make it easy to see the root cause of the apparent "time-irreversibility".
4 giorni fa · Quantum field theory (QFT) in Rindler spacetime is a gateway to understanding unitarity and information loss paradoxes in curved spacetime. Rindler coordinates map Minkowski spacetime onto regions with horizons, efectively dividing accelerated observers into causally disconnected sec-tors.
29 mag 2024 · Time loops have long been the stuff of science fiction. Now, using the rules of quantum mechanics, we have a way to effectively transport a particle back in time – here’s how.
17 mag 2024 · The Decoherent Arrow of Time and the Entanglement Past Hypothesis. Jim Al-Khalili & Eddy Keming Chen. Abstract. If an asymmetry in time does not arise from the fundamental dynamical laws of physics, it may be found in special boundary conditions.
