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Forbidden transitions in a magneto-o...

Bhattacharya, Mishkatul.

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Forbidden transitions in a magneto-optical trap.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Forbidden transitions in a magneto-optical trap./
作者:	Bhattacharya, Mishkatul.
面頁冊數:	141 p.
附註:	Source: Dissertation Abstracts International, Volume: 65-12, Section: B, page: 6437.
Contained By:	Dissertation Abstracts International65-12B.
標題:	Physics, Atomic. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3156814
ISBN:	0496176358

Forbidden transitions in a magneto-optical trap.
Bhattacharya, Mishkatul.

Forbidden transitions in a magneto-optical trap. - 141 p.

Source: Dissertation Abstracts International, Volume: 65-12, Section: B, page: 6437.

Thesis (Ph.D.)--University of Rochester, 2005.

This thesis deals with advances in atomic and molecular spectroscopy and scattering that have become possible as a result of the invention of laser cooling and trapping of atoms.

ISBN: 0496176358Subjects--Topical Terms:

1029235
Physics, Atomic.

Forbidden transitions in a magneto-optical trap.
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500 $a Supervisor: Nicholas P. Bigelow.
502 $a Thesis (Ph.D.)--University of Rochester, 2005.
520 $a This thesis deals with advances in atomic and molecular spectroscopy and scattering that have become possible as a result of the invention of laser cooling and trapping of atoms.
520 $a Cold atomic ensembles are ideal candidates for high-resolution spectroscopy. The first part of this thesis explores forbidden-transition spectroscopy in the context of a Magneto-Optical Trap (MOT). It describes the first observation of a nondipole (E2) transition in an ultracold atomic vapor. The usefulness of such excitations for performing high-resolution, Autler-Townes, and multiphoton ionization spectroscopies is demonstrated. Results include the first measurement of the magnetic dipole constant of the 4P1/2 state of sodium.
520 $a Efforts to create samples of ultracold molecules are at the forefront of experimental atomic and molecular physics. Cold polar molecules are in demand as ideal laboratories for Electron Dipole Moment (EDM) searches, as qubits in a scalable quantum computer, for making polar Bose-Einstein condensates (BECs), etc. The second part of this thesis describes one of the first instances of formation and detection of ultracold polar ground-state molecules. Ultracold 23Na133Cs molecules in the lowest electronic state were produced via photoassociation in a two-species MOT and detected using time-of-flight mass spectrometry.
520 $a In a two-species BEC the interspecies scattering length determines the efficiency of sympathetic cooling, the stability and miscibility of the mixture as well as the strength of the coupling between the two species. The third part of this thesis describes a quantitative study of the 23Na- 85,87Rb alkali mixture. Accurate molecular potentials have been constructed for the ground state of Na-Rb. A first calculation of the two-species s-wave triplet and singlet scattering lengths has been made and used to predict, in the Thomas-Fermi approximation, the instability of a composite BEC in this system. The suppression of inelastic losses and the ensuing narrowness of Feshbach resonances in the isotopomer 23Na87Rb has been predicted. Further, Feshbach resonance values for 23 Na87Rb have been calculated within the Born-Oppenheimer (BO) approximation.
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650 4 $a Physics, Optics. $3 1018756
650 4 $a Physics, Condensed Matter. $3 1018743
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791 $a Ph.D.
792 $a 2005
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