Counting cold collisions

B Ueberholz, S Kuhr, D Frese, D Meschede, V Gomer

Research output: Contribution to journalLetter

21 Citations (Scopus)

Abstract

We have explored experimentally a novel possibility to study exoergic cold atomic collisions. Trapping of small countable atom numbers in a shallow magneto-optical trap and monitoring of their temporal dynamics allows us to directly observe isolated two-body atomic collisions and provides detailed information on loss statistics. A substantial fraction of such cold collisional events has been found to result in the loss of one atom only. We have also observed for the first time a strong optical suppression of ground-state hyperfine-changing Collisions in the trap by its repump laser field.

LanguageEnglish
PagesL135-L142
Number of pages8
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume33
Issue number4
DOIs
Publication statusPublished - 28 Feb 2000

Fingerprint

atomic collisions
counting
traps
collisions
atoms
trapping
retarding
statistics
ground state
lasers

Keywords

  • cold atomic collisions
  • atom numbers
  • shallow magneto-optical trap
  • counting
  • cold collisions
  • optical suppression

Cite this

Ueberholz, B ; Kuhr, S ; Frese, D ; Meschede, D ; Gomer, V . / Counting cold collisions. In: Journal of Physics B: Atomic, Molecular and Optical Physics. 2000 ; Vol. 33, No. 4. pp. L135-L142.
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Counting cold collisions. / Ueberholz, B ; Kuhr, S ; Frese, D ; Meschede, D ; Gomer, V .

In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 33, No. 4, 28.02.2000, p. L135-L142.

Research output: Contribution to journalLetter

TY - JOUR

T1 - Counting cold collisions

AU - Ueberholz, B

AU - Kuhr, S

AU - Frese, D

AU - Meschede, D

AU - Gomer, V

PY - 2000/2/28

Y1 - 2000/2/28

N2 - We have explored experimentally a novel possibility to study exoergic cold atomic collisions. Trapping of small countable atom numbers in a shallow magneto-optical trap and monitoring of their temporal dynamics allows us to directly observe isolated two-body atomic collisions and provides detailed information on loss statistics. A substantial fraction of such cold collisional events has been found to result in the loss of one atom only. We have also observed for the first time a strong optical suppression of ground-state hyperfine-changing Collisions in the trap by its repump laser field.

AB - We have explored experimentally a novel possibility to study exoergic cold atomic collisions. Trapping of small countable atom numbers in a shallow magneto-optical trap and monitoring of their temporal dynamics allows us to directly observe isolated two-body atomic collisions and provides detailed information on loss statistics. A substantial fraction of such cold collisional events has been found to result in the loss of one atom only. We have also observed for the first time a strong optical suppression of ground-state hyperfine-changing Collisions in the trap by its repump laser field.

KW - cold atomic collisions

KW - atom numbers

KW - shallow magneto-optical trap

KW - counting

KW - cold collisions

KW - optical suppression

U2 - 10.1088/0953-4075/33/4/105

DO - 10.1088/0953-4075/33/4/105

M3 - Letter

VL - 33

SP - L135-L142

JO - Journal of Physics B: Atomic, Molecular and Optical Physics

T2 - Journal of Physics B: Atomic, Molecular and Optical Physics

JF - Journal of Physics B: Atomic, Molecular and Optical Physics

SN - 0953-4075

IS - 4

ER -