Pith. Sign in

RECORD

A Casimir cannot cavity fly

PaperPDF from arXiv

data files

Paper breakdownThe authors' claims, conditions and measurements, as JSON Signed receiptProof this review has not been altered
X Bluesky LinkedIn Reddit Hacker News
Massimo Cerdonio, Carlo Rovelli

General Relativity and Quantum Cosmology · Submitted 4 Jun 2014

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We show that basic facts about the structure of matter imply that the total mass of the cavity is always positive.

how it is stated · asserted 1.00 read the record →

Comment (0) Read on arXiv ↗
Cite ▾
arXiv ID1406.1105 (version 3)
Pith ID4NKOSFSY, Pith's permanent record of this paper and its review
CitationCarlo Rovelli, Massimo Cerdonio. "A Casimir cannot cavity fly." arXiv:1406.1105 (2014). https://pith.science/paper/4NKOSFSY
Claim paper

The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

Open the compiled record

Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,749 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.23 · human participants 0.01 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.06 · compares with prior results 0.52 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v3. Results and the main claim are underlined; .

The field inside a Casimir cavity has an effective negative mass, which acts as a buoyancy force in a gravitational field. Can this render the total mass of the cavity negative, making it "float" in the vacuum ? Recent theoretical arguments indicate that this is impossible. We provide support to this conclusion discussing a concrete simple model of cavity, with plane parallel metallic plates kept in mechanical equilibrium by a spring and placed in a weak gravitational field. We show that basic facts about the structure of matter imply that the total mass of the cavity is always positive. This has implications for the hypothetical relation between vacuum energy and cosmological constant.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 The field inside a Casimir cavity has an effective negative mass, which acts as a buoyancy force in a gravitational field. background 1.00 0.14 0.04 asserted 1.00
s1 Can this render the total mass of the cavity negative, making it "float" in the vacuum ? background 0.72 0.05 0.03 hedged possibility 0.63
s2 Recent theoretical arguments indicate that this is impossible. background 0.94 0.04 0.58 hedged possibility 0.97
s3 We provide support to this conclusion discussing a concrete simple model of cavity, with plane parallel metallic plates kept in mechanical equilibrium by a spring and placed in a weak gravitational field. method 0.77 0.85 0.07 asserted 0.76
s4 We show that basic facts about the structure of matter imply that the total mass of the cavity is always positive. result 1.00 0.91 0.87 asserted 1.00
s5 This has implications for the hypothetical relation between vacuum energy and cosmological constant. interpretation 1.00 0.25 0.04 asserted 0.50

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from proof or derivation 0.54.

What was examined, and what was not

sources read
  • arXiv listing abstract v3
not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
levels run
  • P abstract
not run
  • S sections
  • T body sentences
  • C citations
  • R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

The field inside a Casimir cavity has an effective negative mass, which acts as a buoyancy force in a gravitational field. Can this render the total mass of the cavity negative, making it "float" in the vacuum ? Recent theoretical arguments indicate that this is impossible. We provide support to this conclusion discussing a concrete simple model of cavity, with plane parallel metallic plates kept in mechanical equilibrium by a spring and placed in a weak gravitational field. We show that basic facts about the structure of matter imply that the total mass of the cavity is always positive. This has implications for the hypothetical relation between vacuum energy and cosmological constant.

Human review

How Pith checks papers → · Full audit of this paper →

How the literature uses it

1 arXiv paper cite this in 1 sentence

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Discussion

Know something about this paper? Leave a comment, or highlight any passage above to comment on it.