Smooth inductively coupled ring trap for atoms

Research output: Contribution to journalArticle

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Abstract

We propose and numerically investigate a scalable ring trap for cold atoms that surmounts problems of roughness of the potential and end effects of trap wires. A stable trapping potential is formed about an electrically isolated, conducting loop in an ac magnetic field by time averaging the superposition of the external and induced magnetic fields. We investigate the use of additional fields to eliminate Majorana spin-flip losses and to create a stable trapping geometry. The possibility of microfabrication of these ring traps offers the prospect of developing Sagnac atom interferometry in atom-chip devices.
Original languageEnglish
Article number051402(R)
Number of pages4
JournalPhysical Review A
Volume77
Issue number5
Early online date13 May 2008
DOIs
Publication statusPublished - May 2008

Fingerprint

traps
rings
trapping
atoms
magnetic fields
interferometry
roughness
chips
wire
conduction
geometry

Keywords

  • neutral atoms
  • cold atoms
  • surface
  • optics
  • chip

Cite this

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Smooth inductively coupled ring trap for atoms. / Griffin, P.F.; Riis, E.; Arnold, A.S.

In: Physical Review A, Vol. 77, No. 5, 051402(R), 05.2008.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Smooth inductively coupled ring trap for atoms

AU - Griffin, P.F.

AU - Riis, E.

AU - Arnold, A.S.

PY - 2008/5

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N2 - We propose and numerically investigate a scalable ring trap for cold atoms that surmounts problems of roughness of the potential and end effects of trap wires. A stable trapping potential is formed about an electrically isolated, conducting loop in an ac magnetic field by time averaging the superposition of the external and induced magnetic fields. We investigate the use of additional fields to eliminate Majorana spin-flip losses and to create a stable trapping geometry. The possibility of microfabrication of these ring traps offers the prospect of developing Sagnac atom interferometry in atom-chip devices.

AB - We propose and numerically investigate a scalable ring trap for cold atoms that surmounts problems of roughness of the potential and end effects of trap wires. A stable trapping potential is formed about an electrically isolated, conducting loop in an ac magnetic field by time averaging the superposition of the external and induced magnetic fields. We investigate the use of additional fields to eliminate Majorana spin-flip losses and to create a stable trapping geometry. The possibility of microfabrication of these ring traps offers the prospect of developing Sagnac atom interferometry in atom-chip devices.

KW - neutral atoms

KW - cold atoms

KW - surface

KW - optics

KW - chip

U2 - 10.1103/PhysRevA.77.051402

DO - 10.1103/PhysRevA.77.051402

M3 - Article

VL - 77

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

SN - 1050-2947

IS - 5

M1 - 051402(R)

ER -