Results 31 to 40 of about 2,736,099 (297)
Pre-Big-Bang Black-Hole Remnants and Past Low Entropy
Universe, 2018 Dark matter could be composed by black-hole remnants formed before the big-bang era in a bouncing cosmology. This hypothetical scenario has implications on the issue of the arrow of time: it upsets a common attribution of past low entropy to the state of
Carlo Rovelli, Francesca Vidotto
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The Maximum Entropy Principle in the Absence of a Time-Arrow: Fractional-Pole Models [PDF]
IEEE Transactions on Information Theory, 2007 The maximum entropy (ME) principle, as it is often invoked in the context of time-series analysis, suggests the selection of a power spectrum which is consistent with autocorrelation data and corresponds to a random process least predictable from past observations. We introduce and compare a class of spectra with the property that the underlying random
Tryphon T. Georgiou
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Entropy production in systems with unidirectional transitions
Physical Review Research, 2020 The entropy production is one of the most essential features for systems operating out of equilibrium. The formulation for discrete-state systems goes back to the celebrated Schnakenberg's work and hitherto can be carried out when for each transition ...
D. M. Busiello, D. Gupta, A. Maritan
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The Decoherent Arrow of Time and the Entanglement Past Hypothesis [PDF]
Foundations of PhysicsIf an asymmetry in time does not arise from the fundamental dynamical laws of physics, it may be found in special boundary conditions. The argument normally goes that since thermodynamic entropy in the past is lower than in the future according to the ...
Al-Khalili J, Chen E.
europepmc +3 more sources
Nanothermodynamics: There's Plenty of Room on the Inside. [PDF]
Nanomaterials (Basel)Nanothermodynamics provides the theoretical foundation for understanding stable distributions of statistically independent subsystems inside larger systems.
Chamberlin RV, Lindsay SM.
europepmc +2 more sources
From Randomness and Entropy to the Arrow of Time
The Element reconstructs, analyses and compares different derivational routes to a grounding of the Arrow of Time in entropy. It also evaluates the link between entropy and visible disorder, and the related claim of an alignment of the Arrow of Time with a development from order to visible disorder.
Lena Zuchowski
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Unified Framework of the Arrow of Time and Entropy Flow in Rigid Fractal Structures
本文提出了一种新的时间本质模型,假设时间是嵌入在刚性分形几何中的动态表现。基于这个模型,时间的方向性(时间之箭)和熵的流动(热力学第二定律)被统一为分形几何学中递归动力学的自然结果。通过从几何和动力学的角度重新审视时间与熵之间的关系,我们表明熵的增加本质上是刚性分形结构沿时间维度变得更加复杂的过程,而时间的方向性是由分形递归深度的不可逆性驱动的。通过数学数学公式,我们建立了将时间、 entropy 和分形几何联系起来的统一方程,预测了时间之箭和熵流的不可逆性源于分形几何的内在特性。最后,我们讨论了实验验证和该理论的潜在物理影响。关键词:时间之箭,熵流,刚性分形,递归几何 ...
changzheng zhou, ZIQING zhou
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Arrow(s) of Time without a Past Hypothesis [PDF]
, 2019 The paper discusses recent proposals by Carroll and Chen, as well as Barbour, Koslowski, and Mercati to explain the (thermodynamic) arrow of time without a Past Hypothesis, i.e., the assumption of a special (low-entropy) initial state of the universe ...
Lazarovici, Dustin, Reichert, Paula
core +7 more sources
Thermodynamics of quantum measurement and Maxwell's demon's arrow of time [PDF]
Physical Review A, 2022 We discuss the thermodynamic aspects of a single qubit based device, powered by weak quantum measurements, and feedback controlled by a quantum Maxwell’s demon.
Kagan Yanik +3 more
semanticscholar +1 more source
Is Time’s Asymmetry Related to Irreversible Processes and the Second Law?
Entropy, 2023 In this article, we start by describing one of the most characteristic properties of time: “time can never decrease”. From this property, numerous authors have concluded that irreversible processes, that always proceed in one direction, must be related ...
Arieh Ben-Naim
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