Results 161 to 170 of about 7,599,029 (258)

What’s the problem with the cosmological constant? [PDF]

, 2018
The “Cosmological Constant Problem” (CCP) is widely considered a crisis in contemporary theoretical physics. Unfortunately, the search for its resolution is hampered by open disagreement about what is, strictly, the problem.
Schneider, Mike D.
core  

Room for Improvement: Why Finitist Arguments Do Not Check Out

Analytic Philosophy, EarlyView.
ABSTRACT We examine several new and underexplored arguments for the finitude of the past and the impossibility of Hilbert's Hotel. The first argument concludes that Hilbert's Hotel is impossible due to an alleged contradiction arising from the causal powers of infinitely many guests.
Joseph C. Schmid, Troy Dana
wiley   +1 more source

Does cosmological expansion affect local physics? [PDF]

, 2013
In this contribution I wish to address the question whether, and how, the global cosmological expansion influences local physics, like particle orbits and black hole geometries.
Domenico Giulini, Giulini, Domenico
core  

Simulations All the Way Up! An Atheist's Response to the Fine‐Tuning Argument

Analytic Philosophy, EarlyView.
ABSTRACT So the Fine‐tuning Argument goes, because it is so unlikely for the physical constants of the laws of nature to have taken the values that they in fact take, we should significantly raise our credence that God exists. Simulation Arguments argue that our world might be (or, in stronger versions, that it probably is) a mere computer simulation ...
Nikk Effingham
wiley   +1 more source

The expansion of the universe and the cosmological constant problem

Physics Letters A, 2007
The discovery that the expansion of the universe is accelerating in time is a major discovery which still awaits adequate explanation. It is generally agreed that this implies a cosmic repulsion as a result of the existence of a cosmological constant . However, estimates of the cosmological constant, based on calculations of the zero-point fluctuations
openaire   +3 more sources

The Problem of Psychonomic Harmony

Philosophy and Phenomenological Research, EarlyView.
ABSTRACT The problem of nomological harmony is the problem of explaining why the laws of nature match or apply to the states of the universe in a way that results in temporal evolution. The problem of psychophysical harmony is the problem of explaining why phenomenal states are paired with physical states and other phenomenal states in surprisingly ...
Joseph C. Schmid
wiley   +1 more source

The Cosmological Constant Problem (1/2)

, 2015
I will review the cosmological constant problem as a serious challenge to our notion of naturalness in Physics. Weinberg’s no go theorem is worked through in detail.
Padilla, Antonio
core  

On the Limits of Intransitive Coordination

Ratio, EarlyView.
ABSTRACT A growing number of authors suggest that concept coordination—the kind of relation we pick out when we say that the concepts of one or more individuals represent something as the same—is not a transitive relation. Here we consider global features of representational systems to break new ground in the assessment of the intransitivity view. From
Víctor M. Verdejo, Joost J. Joosten
wiley   +1 more source

An Issue to the Cosmological Constant Problem

, 2005
Talk given at : a) VII Asia-Pacific International Conference on Gravitation and Astrophysics (ICGA7) on the Occasion of the 90th Year of General Relativity November (2005 Na- tional Central University Chungli, Taiwan) b) Albert Einstein Century ...
Triay, R.
core   +2 more sources

Λ-Gravity from entropy

Physics Letters B
The Gravity from Entropy (GfE) theory treats the metric of spacetime as quantum operators and proposes the GfE action for gravity. The GfE Lagrangian is given by the Geometric Quantum Relative Entropy (GQRE) between the true metric and the metric induced
Ginestra Bianconi
doaj   +1 more source