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相关论文: Does a Computer have an Arrow of Time?

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The connection between the micro and macro-arrow of time is discussed in the frame of the stochastic quantum hydrodynamic analogy (SQHA). The presence of fluctuations that in the case on non-linear interactions leads to the breaking of the…

量子物理 · 物理学 2015-06-16 Piero Chiarelli

The laws of Physics are time-reversible, making no qualitative distinction between the past and the future -- yet we can only go towards the future. This apparent contradiction is known as the "arrow of time problem". Its current resolution…

离散数学 · 计算机科学 2024-08-23 Pablo Arrighi , Gilles Dowek , Amélia Durbec

We investigate the emergence of thermodynamic arrow of time in the context of AdS/CFT correspondence. We show that, on the CFT side, if the two copies of the field theory are not initially correlated the entropy can only increase such that…

综合物理 · 物理学 2019-04-09 Ovidiu Racorean

The outcome of a single quantum experiment is unpredictable, except in a pure-state limit. The definite process that takes place in the apparatus may either be intrinsically random or be explainable from a deeper theory. While the first…

量子物理 · 物理学 2015-06-22 Theo M. Nieuwenhuizen

In any physical theory that admits true indeterminism, the thermodynamic arrow of time can arise regardless of the system's initial conditions. Hence on such theories time's arrow emerges out of the basic physical interactions. The example…

量子物理 · 物理学 2007-05-23 Shahar Dolev , Avshalom C. Elitzur , Meir Hemmo

In several previous papers we have argued for a global and non-entropic approach to the problem of the arrow of time, according to which the ''arrow'' is only a metaphorical way of expressing the geometrical time-asymmetry of the universe.…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Matias Aiello , Mario Castagnino , Olimpia Lombardi

In the understanding of the fundamental interactions, the origin of an arrow of time is viewed as problematic. However, quantum field theory has an arrow of causality, which tells us which time direction is the past lightcone and which is…

量子物理 · 物理学 2020-10-15 John F. Donoghue , Gabriel Menezes

Why time is a one-way corridor? What's the origin of the arrow of time? We attribute the thermodynamic arrow of time as the direction of increasing quantum state complexity. Inspired by the work of Nielsen, Susskind and Micadei, we checked…

量子物理 · 物理学 2017-12-20 Xiao Dong , Ling Zhou

The existence of a thermodynamic arrow of time in the present universe implies that the initial state of the observable portion of our universe at (or near) the ``big bang'' must have been very ``special''. We argue that it is not plausible…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Robert M. Wald

Based on the hypothesis that the thermodynamic arrow of time is an emergent phenomenon of quantum state complexity evolution, we further propose that the natural pace of time flow is proportional to the changing rate of quantum state…

量子物理 · 物理学 2018-01-17 X. Dong , L. Zhou

Why does time appear to pass irreversibly? To investigate, we introduce a class of partitioned cellular automata (PCAs) whose cellwise evolution is based on the chaotic baker's map. After imposing a suitable initial condition and…

统计力学 · 物理学 2022-08-15 Aram Ebtekar

In both thermodynamics and quantum mechanics the arrow of time is characterized by the statistical likelihood of physical processes. We characterize this arrow of time for the continuous quantum measurement dynamics of a superconducting…

量子物理 · 物理学 2019-07-17 P. M. Harrington , D. Tan , M. Naghiloo , K. W. Murch

If one introduces causality into quantum cosmology, then the prescription for the no-boundary universe should be revised. We show that the thermodymanic arrow of time associated with the perturbation modes should be reversed at the maximum…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Wu Zhong Chao

Entropy and the second law of thermodynamcs were discovered through study of the behaviour of gases in confined spaces. The related techniques developed in the kinetic theory of gases have failed to resolve the apparent conflict between the…

广义相对论与量子宇宙学 · 物理学 2016-02-26 Julian Barbour

We humans seem to have an innate understanding of the asymmetric progression of time, which we use to efficiently and safely perceive and manipulate our environment. Drawing inspiration from that, we address the problem of learning an arrow…

机器学习 · 计算机科学 2019-07-03 Nasim Rahaman , Steffen Wolf , Anirudh Goyal , Roman Remme , Yoshua Bengio

Consider a Hamiltonian system that consists of a slow subsystem S and a fast subsystem F. The autonomous dynamics of S is driven by an effective Hamiltonian, but its thermodynamics is unexpected. We show that a well-defined thermodynamic…

统计力学 · 物理学 2009-11-13 Armen E. Allahverdyan , Dominik Janzing

We investigate the thermodynamic arrow of time in a time-symmetrically recollapsing universe by calculating quantum mechanically the entropy production of a massive scalar field. It is found that even though the Hamiltonian has a…

广义相对论与量子宇宙学 · 物理学 2011-04-15 Sang Pyo Kim

The arrow of time dilemma: the laws of physics are invariant for time inversion, whereas the familiar phenomena we see everyday are not (i.e. entropy increases). I show that, within a quantum mechanical framework, all phenomena which leave…

量子物理 · 物理学 2010-04-22 Lorenzo Maccone

This essay offers a meta-level analysis in the sociology and history of physics in the context of the so-called "Arrow of Time Problem" or "Two Times Problem," which asserts that the empirically observed directionality of time is in…

物理学史与哲学 · 物理学 2024-06-11 R. E. Kastner

Usually, it is supposed that irreversibility of time appears only in macrophysics. Here, we attempt to introduce the microphysical arrow of time assuming that at a fundamental level nature could be non-associative. Obtaining numerical…

综合物理 · 物理学 2022-11-02 Merab Gogberashvili