Abstract A single particle magneto-confined in a one-dimensional (1D) quantum wire experiences a harmonic potential, and imposing a sharply focused laser beam on an appropriate site shapes a $\delta$ potential. The theoretical investigation has demonstrated that for a sufficiently strong $\delta$ pulse the quantum motional stationary state of the particle is one of the eigenstates of the free harmonic oscillator, and it is determined by the site of the laser beam uniquely, namely a quantum state is admissible if and only if the laser site is one of its nodes. The numerical computation shows that all the nodes of the lower energy states with quantum numbers $n \le 20$, except the coordinate origin, are mutually different. So we can manipulate the multiphoton transitions between the quantum states by adjusting the position of the laser $\delta$ pulse and realize the transition from an unknown higher excitation state to a required lower energy state.
Accepted manuscript online:
PACS:
73.21.Hb
(Quantum wires)
Fund: Project supported by the National
Natural Science Foundation of China (Grant No 10575034), and the Key
Laboratory of Magnetic Resonance and Atomic and Molecular Physics of
China (Grant No T152504).
Cite this article:
Chen Qiong(陈琼), Hai Kuo(海阔), and Hai Wen-Hua(海文华) Laser-manipulated the multiphoton transitions of a harmonically trapped particle 2007 Chinese Physics 16 3662
Mobility limited by cluster scattering in ternary alloy quantum wires Zhang Heng (张恒), Yang Shao-Yan (杨少延), Liu Gui-Peng (刘贵鹏), Wang Jian-Xia (王建霞), Jin Dong-Dong (金东东), Li Hui-Jie (李辉杰), Liu Xiang-Lin (刘祥林), Zhu Qin-Sheng (朱勤生), Wang Zhan-Guo (王占国). Chin. Phys. B, 2014, 23(1): 017305.
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
