from
PhilSci-Archive: No conditions. Results ordered -Date Deposited.
Sat Jun 24 2023 00:19:15 (10 hours)
# 1.
Duerr, Patrick M. and Wolf, William J. (2023) Methodological Reflections on the MOND/Dark Matter Debate. [Preprint]
Send To > Keep unreadDelete
from
PhilSci-Archive: No conditions. Results ordered -Date Deposited.
Sat Jun 24 2023 00:18:01 (10 hours)
# 2.
Ovidiu Cristinel, Stoica (2023) Does a computer think if no one is around to see it? [Preprint]
Send To > Keep unreadDelete
from
PhilSci-Archive: No conditions. Results ordered -Date Deposited.
Sat Jun 24 2023 00:16:21 (10 hours)
# 3.
Sus, Adán (2023) What spacetime does: ideal observers and (Earman’s) symmetry principles. THEORIA. An International Journal for Theory, History and Foundations of Science, 38 (1). pp. 67-85. ISSN 2171-679X
Send To > Keep unreadDelete
from
physics.hist-ph updates on arXiv.org
by
Juan M. R. Parrondo
Fri Jun 23 2023 10:53:20 (1 day)
# 4.
As early as 1867, two years after the introduction of the concept of entropy by Clausius, Maxwell showed that the limitations imposed by the second law of thermodynamics depend on the information that one possesses about the state of a physical system. A “very observant and neat-fingered being”, later on named Maxwell demon by Kelvin, could arrange the molecules of a gas and induce a temperature or pressure gradient without performing work, in apparent contradiction to the second law. One century later, Landauer claimed that “information is physical”, and showed that certain processes involving information, like overwriting a memory, need work to be completed and are unavoidably accompanied by heat dissipation. Thermodynamics of information analyzes this bidirectional influence between thermodynamics and information processing. The seminal ideas that Landauer and Bennett devised in the 1970s have been recently reformulated in a more precise and general way by realizing that informational states are out of equilibrium and applying new tools from non-equilibrium statistical mechanics.
Send To > Keep unreadDelete
from
by
Robert Brandenberger (McGill University)
Fri Jun 23 2023 10:53:20 (1 day)
# 5.
In this review, a number of approaches to superstring cosmology which make use of key features which distinguish string theory from point particle theories are discussed, with particular emphasis on emergent scenarios. One motivation for the discussion is the realization that, in order to describe the evolution of the very early universe, it is necessary to go beyond a conventional effective field theory (EFT) analysis. Some of the conceptual problems of an EFT analysis will be discussed. The review begins with a summary of the criteria for a successful early universe scenario, emphasizing that cosmic inflation is not the only scenario of early universe cosmology which is consistent with current cosmological observations. Bouncing and emergent scenarios as interesting alternatives are introduced. Some realizations of these scenarios from superstring theory are reviewed, e.g. String Gas Cosmology, the Pre-Big-Bang scenario, the Ekpyrotic model, Double Field Theory cosmology and matrix model cosmology. In light of the difficulties in obtaining cosmic inflation from string theory (at the level of EFT), and realizing that there are promising examples of alternative early universe scenarios which are derived from basic principles of superstring theory, one must entertain the possibility that the cosmology emerging from string theory will not involve an extended period of accelerated expansion.
Send To > Keep unreadDelete
from
by
Alexey Golovnev
Fri Jun 23 2023 10:53:07 (1 day)
# 6.
It is a well-known fact that there is no well-defined notion of conserved energy in gravity. In my opinion, it is not a big deal. As a conserved quantity, energy is a rather artificial invention which works perfectly well as long as we have a natural symmetry with respect to translations in time, however not when there ceases to be any notion of an objective time, rather than a mere coordinate. However, recently we have got an essential progress in teleparallel models of gravity, with emerging opinions of having solved the problem of energy. I explain why I think it simply makes no good sense to go for solving a non-existent problem, and the correct answer is just that in general there is no such thing as The Energy. (It has just been presented online at the Conference on Geometric Foundations of Gravity 2023 in Tartu, Estonia.)
Send To > Keep unreadDelete
from
PhilSci-Archive: No conditions. Results ordered -Date Deposited.
Thu Jun 22 2023 01:31:12 (2 days)
# 7.
Valente, Mario B. (2023) A hub-and-spoke model of geometric concepts. THEORIA. An International Journal for Theory, History and Foundations of Science, 38 (1). pp. 25-44. ISSN 2171-679X
Send To > Keep unreadDelete
from
PhilSci-Archive: No conditions. Results ordered -Date Deposited.
Thu Jun 22 2023 01:30:31 (2 days)
# 8.
Healey, Richard A. (2023) Representation and the Quantum State. UNSPECIFIED.
Send To > Keep unreadDelete
from
PhilSci-Archive: No conditions. Results ordered -Date Deposited.
Wed Jun 21 2023 01:48:32 (3 days)
# 9.
Evans, Peter W. and Hangleiter, Dominik and Thebault, Karim P Y (2023) How to engineer a quantum wavefunction. [Preprint]
Send To > Keep unreadDelete
from
PhilSci-Archive: No conditions. Results ordered -Date Deposited.
Tue Jun 20 2023 01:15:05 (4 days)
# 10.
Heesen, Remco and Romeijn, Jan-Willem (2023) Measurement Invariance, Selection Invariance, and Fair Selection Revisited. Psychological Methods, 28 (3). pp. 687-690. ISSN 1082-989X
