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Suppression of Excitation and Spectral Broadening Induced by Interactions in a Cold Gas of Rydberg Atoms

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Kilian Singer, Markus Reetz-Lamour, Thomas Amthor, Luis Gustavo Marcassa, Matthias Weidemüller

Atomic Physics · Submitted 15 Apr 2004

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

The authors' main claim The density-dependent suppression of excitation can be interpreted as the onset of an interaction-induced local blockade.

how it is stated · hedged possibility 0.59 read the record →

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arXiv IDphysics/0404075 (version 2)
Pith IDKWHVPWD4, Pith's permanent record of this paper and its review
CitationKilian Singer, Luis Gustavo Marcassa, Markus Reetz-Lamour, Matthias Weidem\"uller, Thomas Amthor. "Suppression of Excitation and Spectral Broadening Induced by Interactions in a Cold Gas of Rydberg Atoms." arXiv:physics/0404075 (2004). https://pith.science/paper/KWHVPWD4
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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, 3,681 input tokens.

What the abstract itself states, as probabilities: claims first 0.05 · states limitation 0.07 · human participants 0.01 · controlled comparison 0.07 · randomized assignment 0.01 · states quantitative result 0.79 · compares with prior results 0.07 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; .

We report on the observation of ultralong range interactions in a gas of cold Rubidium Rydberg atoms. The van-der-Waals interaction between a pair of Rydberg atoms separated as far as 100,000 Bohr radii features two important effects: Spectral broadening of the resonance lines and suppression of excitation with increasing density. The density dependence of these effects is investigated in detail for the S- and P- Rydberg states with main quantum numbers n ~ 60 and n ~ 80 excited by narrow-band continuous-wave laser light. The density-dependent suppression of excitation can be interpreted as the onset of an interaction-induced local blockade.

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 We report on the observation of ultralong range interactions in a gas of cold Rubidium Rydberg atoms. contribution 0.54 0.94 0.16 asserted 1.00
s1 The van-der-Waals interaction between a pair of Rydberg atoms separated as far as 100,000 Bohr radii features two important effects: Spectral broadening of the resonance lines and suppression of excitation with increasing density. result 0.98 0.75 0.50 asserted 1.00
s2 The density dependence of these effects is investigated in detail for the S- and P- Rydberg states with main quantum numbers n ~ 60 and n ~ 80 excited by narrow-band continuous-wave laser light. method 0.77 0.93 0.06 asserted 0.96
s3 The density-dependent suppression of excitation can be interpreted as the onset of an interaction-induced local blockade. interpretation 1.00 0.78 0.40 hedged possibility 0.59

What kind of paper the classifier reports this is: empirical study 1.00 · evidence from observation or experiment 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

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

We report on the observation of ultralong range interactions in a gas of cold Rubidium Rydberg atoms. The van-der-Waals interaction between a pair of Rydberg atoms separated as far as 100,000 Bohr radii features two important effects: Spectral broadening of the resonance lines and suppression of excitation with increasing density. The density dependence of these effects is investigated in detail for the S- and P- Rydberg states with main quantum numbers n ~ 60 and n ~ 80 excited by narrow-band continuous-wave laser light. The density-dependent suppression of excitation can be interpreted as the onset of an interaction-induced local blockade.

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