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Isometries of quantum states

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Lajos Molnar, Werner Timmermann

Operator Algebras · Submitted 14 Nov 2002

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

The authors' main claim We describe all the corresponding (nonlinear) isometries and also present similar results concerning the space of all (non-normalized) density operators.

how it is stated · asserted 1.00 read the record →

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arXiv IDmath/0211221 (version 1)
Pith IDYLDQVEWV, Pith's permanent record of this paper and its review
CitationLajos Molnar, Werner Timmermann. "Isometries of quantum states." arXiv:math/0211221 (2002). https://pith.science/paper/YLDQVEWV
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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.

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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 2,871 input tokens.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.10 · human participants 0.01 · controlled comparison 0.01 · randomized assignment 0.01 · states quantitative result 0.04 · compares with prior results 0.05 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v1. Results and the main claim are underlined; .

This paper treats the isometries of metric spaces of quantum states. We consider two metrics on the set all quantum states, namely the Bures metric and the one which comes from the trace-norm. We describe all the corresponding (nonlinear) isometries and also present similar results concerning the space of all (non-normalized) density operators.

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 This paper treats the isometries of metric spaces of quantum states. contribution 0.82 0.78 0.07 asserted 0.97
s1 We consider two metrics on the set all quantum states, namely the Bures metric and the one which comes from the trace-norm. contribution 0.60 0.60 0.04 asserted 0.97
s2 We describe all the corresponding (nonlinear) isometries and also present similar results concerning the space of all (non-normalized) density operators. result 0.51 0.94 0.75 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 v1
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

This paper treats the isometries of metric spaces of quantum states. We consider two metrics on the set all quantum states, namely the Bures metric and the one which comes from the trace-norm. We describe all the corresponding (nonlinear) isometries and also present similar results concerning the space of all (non-normalized) density operators.

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