Comment on "Do Gedankenexperiments compel quantization of gravity"

• URL: http://arxiv.org/abs/2107.14666v1
• Date: Fri, 30 Jul 2021 14:36:22 GMT
• Title: Comment on "Do Gedankenexperiments compel quantization of gravity"
• Abstract summary: There is no conclusive theoretical argument that would require the quantization of the gravitational field. Efforts by Ryding, Aurell, and Pikovski to further establish the inconclusiveness of the question of necessity of quantization are futile.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: There is no conclusive theoretical argument that would require the quantization of the gravitational field. A paradox presented by Mari et al. [Sci. Rep. 6, 22777 (2016)] and its resolution by Belenchia et al. [Phys. Rev. D 98, 126009 (2018)] did not change anything about this assertion. Despite being interesting in other respects, efforts of a recent work by Ryding, Aurell, and Pikovski [arXiv:2107.07514] to further establish the inconclusiveness of the question of necessity of quantization are futile.

Related papers

• Einstein's 1927 gedanken experiment: how to complete it and measure the collapse time of a spatially spread photon [55.2480439325792]
  Einstein discussed a gedanken experiment involving a single photon diffracted at an aperture and impinging on a screen. He devised the example to support De Broglie's hypothesis of the pilot wave, and his own ideas on the incompleteness of the description of physical reality provided by Quantum Mechanics. Partial realizations of Einstein's example have been performed, but the complete experiment has not been attempted (for good practical reasons) yet.
  arXiv  Detail & Related papers  (2025-03-11T18:10:12Z)
• Table-top nanodiamond interferometer enabling quantum gravity tests [34.82692226532414]
  We present a feasibility study for a table-top nanodiamond-based interferometer. By relying on quantum superpositions of steady massive objects our interferometer may allow exploiting just small-range electromagnetic fields.
  arXiv  Detail & Related papers  (2024-05-31T17:20:59Z)
• Relaxation of first-class constraints and the quantization of gauge theories: from "matter without matter" to the reappearance of time in quantum gravity [72.27323884094953]
  We make a conceptual overview of an approach to the initial-value problem in canonical gauge theories. We stress how the first-class phase-space constraints may be relaxed if we interpret them as fixing the values of new degrees of freedom.
  arXiv  Detail & Related papers  (2024-02-19T19:00:02Z)
• Quantum cosmological gravitational waves? [0.0]
  General relativity and its cosmological solution predicts the existence of tensor modes of perturbations evolving on top of our Friedman-Lemaitre-Robertson-Walker expanding Universe. Being gauge invariant and not necessarily coupled to other quantum sources, they can be seen as representing pure gravity. This review will present a summary of the various theoretical issues that could lead to this conclusion.
  arXiv  Detail & Related papers  (2022-10-31T22:57:34Z)
• Consistency between causality and complementarity guaranteed by the Robertson inequality in quantum field theory [0.0]
  Authors in [Sci. Rep. 6, 22777 (2009)] discussed the inconsistency between causality and complementarity in a Gedankenexperiment. We reanalyze the consistency between the two physical properties, according to the quantum field theory.
  arXiv  Detail & Related papers  (2022-06-06T11:37:16Z)
• A dialog on the fate of information in black hole evaporation [77.34726150561087]
  We present two alternative perspectives for the resolution of Hawking's information puzzle in black hole evaporation. One of them is the central role played by the existence of the interior singularity that we expect to be replaced by a more fundamental quantum gravity formulation. Both views rely on the notion that the standard effective quantum field theoretic perspective would require some deep modifications.
  arXiv  Detail & Related papers  (2022-05-17T16:21:22Z)
• On a gap in the proof of the generalised quantum Stein's lemma and its consequences for the reversibility of quantum resources [51.243733928201024]
  We show that the proof of the generalised quantum Stein's lemma is not correct due to a gap in the argument leading to Lemma III.9. This puts into question a number of established results in the literature, in particular the reversibility of quantum entanglement.
  arXiv  Detail & Related papers  (2022-05-05T17:46:05Z)
• Do Gedankenexperiments compel quantization of gravity? [0.0]
  We show that the necessity for a quantum field theory of gravity does not follow from so far considered Gedankenexperiments of this type. Our results highlight that no Gedankenexperiment to date compels a quantum field theory of gravity, in contrast to the electromagnetic case.
  arXiv  Detail & Related papers  (2021-07-16T09:01:49Z)
• Consistency in the description of quantum measurement: Quantum theory can consistently describe the use of itself [8.122270502556372]
  I propose a slight addition to standard textbook quantum mechanics, in the form of two rules, which avoids the paradox. The first specifies when a given quantum dynamics can be interpreted as a measurement. The second requires that a joint context be used to determine whether several different dynamical evolutions can all be interpreted as measurement.
  arXiv  Detail & Related papers  (2021-07-05T18:00:15Z)
• Impossibility of creating a superposition of unknown quantum states [16.467540842571328]
  We show that the existence of a protocol that superposes two unknown pure states with nonzero probability leads to violation of other no-go theorems. Such a protocol can be used to perform certain state discrimination and cloning tasks that are forbidden in quantum theory.
  arXiv  Detail & Related papers  (2020-11-04T13:25:42Z)
• Epistemic Horizons: This Sentence is $\frac{1}{\sqrt{2}}(|True\rangle + |False\rangle)$ [0.0]
  In [Found. Phys. 48.12: 1669], the notion of 'epistemic horizon' was introduced as an explanation for many of the puzzling features of quantum mechanics. We give a brief presentation of the framework, and then demonstrate how it naturally yields Bell inequality violations.
  arXiv  Detail & Related papers  (2020-07-29T15:26:53Z)
• Comment on Frauchiger and Renner paper (Nat. Commun. 9, 3711 (2018)): the problem of stopping times [0.0]
  Frauchiger and Renner's postulate Q is meaningless and needs to be narrowed. This paper is agnostic concerning particular interpretations of quantum mechanics.
  arXiv  Detail & Related papers  (2019-06-05T22:08:48Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.