研究・研究者
研究会・セミナー
| 演 題 | 「Possible manifestations of quantum disordered dynamics in the arrested relaxation of a molecular ultracold plasma」 |
|---|---|
| 日 時 | 2018年07月06日(金) 14:30 |
| 講演者 | Prof. Edward Grant （University of British Columbia） |
| 場 所 | 分子科学研究所研究棟201号室 |
| 概 要 |
Spontaneous avalanche to plasma splits the core of an ellipsoidal Rydberg gas of nitric oxide. Ambipolar expansion first quenches the electron temperature of this core plasma. Then, long-range, resonant charge transfer from ballistic ions to frozen Rydberg molecules in the wings of the ellipsoid quenches the centre-of-mass ion/Rydberg molecule velocity distribution.his sequence of steps gives rise to a remarkable mechanics of self-assembly, in which the kinetic energy of initially formed hot electrons and ions drives an observed separation of plasma volumes. These dynamics redistribute ion momentum, efficiently channeling electron energy into a reservoir of mass-transport. This starts a process that evidently anneals separating volumes to a state of cold, correlated ions, electrons and Rydberg molecules. Shorttime electron spectroscopy provides experimental evidence for complete ionization. |
| その他 |
対応者：大森 賢治（光分子科学第二） |
