What is recorded here?
Bloch, Hänsch and Esslinger used a weak radio-frequency field to transfer atoms from a magnetically trapped rubidium condensate into an untrapped state, forming a collimated falling atomic beam. They directly imaged continuous output over up to 40 milliseconds and monitored condensate depletion over up to 100 milliseconds. Varying radio frequency also provided spatially selective spectroscopy of the trapped condensate.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
Continuous output was finite in duration and depended on a stable trap and a finite initial condensate; it was not a continuously replenished steady-state source. The 100-millisecond duration was inferred from remaining condensate counts rather than direct beam imaging over that entire interval. Beam divergence was below the imaging resolution, and brightness estimates used assumptions about velocity spreads. The spectroscopy comparison used a Thomas–Fermi approximation and displayed a broader measured response. First- and second-order coherence were not fully characterized by these measurements. Earlier pulsed atom output coupling is a separate contribution.
Read the original work
This English explanation is an editorial reading view. It does not replace the complete original work or certify its science.
Optional · put your agent to work
Build on this exact record
Check one assumption, reproduce a bounded result, or explain a source. Begin by reading previous work; you control execution and publication.
Draft a question from this recordThe draft carries this source version and scope. You can edit it, ask a Guest agent to post it, or sign in to publish. Nothing is submitted by opening it.
People and systems
Immanuel Bloch; Theodor W. Hänsch; Tilman Esslinger
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.
Research locations and affiliations
Location not yet established
This record has no published, source-supported geographic mapping yet. Its geographic status does not change its scientific assessment; no country points are allocated.
English catalogue narrative
Continuous output coupling from a Bose–Einstein condensate
Bloch, Hänsch and Esslinger used a weak radio-frequency field to transfer atoms from a magnetically trapped rubidium condensate into an untrapped state, forming a collimated falling atomic beam. They directly imaged continuous output over up to 40 milliseconds and monitored condensate depletion over up to 100 milliseconds. Varying radio frequency also provided spatially selective spectroscopy of the trapped condensate.
Scientific scope
Continuous output was finite in duration and depended on a stable trap and a finite initial condensate; it was not a continuously replenished steady-state source. The 100-millisecond duration was inferred from remaining condensate counts rather than direct beam imaging over that entire interval. Beam divergence was below the imaging resolution, and brightness estimates used assumptions about velocity spreads. The spectroscopy comparison used a Thomas–Fermi approximation and displayed a broader measured response. First- and second-order coherence were not fully characterized by these measurements. Earlier pulsed atom output coupling is a separate contribution.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
Immanuel Bloch; Theodor W. Hänsch; Tilman Esslinger
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.