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High Energy Physics - Theory · arXiv:hep-th/0510129 v2 · submitted 16 Oct 2005

D-instantons and Closed String Tachyons in Misner Space

Yasuaki Hikida, Ta-Sheng Tai

The paper says

“Then, resorting to these, we are able to show that tachyon condensation actually deforms the geometry such that the singularity becomes milder.”

from the abstract · picked out as the main claim by a classifier

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The paper

Abstract

We investigate closed string tachyon condensation in Misner space, a toy model for big bang universe. In Misner space, we are able to condense tachyonic modes of closed strings in the twisted sectors, which is supposed to remove the big bang singularity. In order to examine this, we utilize D-instanton as a probe. First, we study general properties of D-instanton by constructing boundary state and effective action. Then, resorting to these, we are able to show that tachyon condensation actually deforms the geometry such that the singularity becomes milder.

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. No sentence in this record was written by a model.

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

How the main claim is stated: asserted 1.00

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.14 · human participants 0.01 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.04 · compares with prior results 0.06 · mentions code or data availability 0.02

The abstract, sentence by sentence

This table labels the abstract only (arXiv listing abstract v2). The number is the probability the classifier gave the label.

SentenceRoleThe authors' own workStates the main conclusionStrength
We investigate closed string tachyon condensation in Misner space, a toy model for big bang universe. contribution 0.88 0.82 0.05 asserted 0.89
In Misner space, we are able to condense tachyonic modes of closed strings in the twisted sectors, which is supposed to remove the big bang singularity. result 0.62 0.64 0.52 asserted 0.65
In order to examine this, we utilize D-instanton as a probe. method 0.99 0.78 0.03 asserted 0.94
First, we study general properties of D-instanton by constructing boundary state and effective action. method 0.83 0.91 0.03 asserted 0.87
Then, resorting to these, we are able to show that tachyon condensation actually deforms the geometry such that the singularity becomes milder. result 0.99 0.93 0.85 asserted 1.00

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

What was examined, and what was not

Sources read

  • arXiv listing abstract v2

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

How the labels were made

Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,181 input tokens, $0.0002 reported.

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. This record as JSON

Cited by 3 Pith papers

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