| Project/Area Number |
23740307
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Atomic/Molecular/Quantum electronics
|
|---|
| Research Institution | The University of Electro-Communications |
|---|
Principal Investigator |
KISHIMOTO Tetsuo 電気通信大学, 大学院・情報理工学研究科, 准教授 (70420239)
|
|---|
| Project Period (FY) |
2011 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
|
|---|
| Keywords | ボース・アインシュタイン凝縮 / 極低温量子ダイナミクス / 量子エレクトロニクス |
|---|
| Research Abstract |
We proposed methods to generate and manipulate quantum vortices using optical dipole potentials produced by red- or blue-detuned lasers. To experimentally realize such methods, we think that local engineering of an asymmetric AC-Stark shift between the excited state and the ground state of an atomic Bose-Einstein condensate will be important. Differential AC-Stark shifts for such states were measured by monitoring the shift in a saturated absorption spectroscopy signal and the optimal wavelength for the optical dipole potential was determined from them. Further, to obtain high enough resolution that enables local light-shift engineering, we developed an optical system that provides both a large numerical aperture and a long working distance that fits outside our vacuum system.
|
