Pimonpan Sompet
University of Otago
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Publication
Featured researches published by Pimonpan Sompet.
Laser Physics Letters | 2013
A. V. Carpentier; Yin H. Fung; Pimonpan Sompet; Andrew J. Hilliard; Thad G. Walker; Mikkel F. Andersen
We investigate the use of light assisted collisions for the deterministic preparation of individual atoms in a microtrap. Blue detuned light is used in order to ensure that only one of the collision partners is lost from the trap. We obtain a 91% loading efficiency of single 85Rb atoms. This can be achieved within a total preparation time of 542 ms. A numerical model of the process quantitatively agrees with the experiment giving an in-depth understanding of the dynamics of the process and allowing us to identify the factors that still limit the loading efficiency. The fast loading time in combination with the high efficiency may be sufficient for loading quantum registers at the size required for competitive quantum computing.
Physical Review A | 2013
Pimonpan Sompet; A. V. Carpentier; Yin H. Fung; M. McGovern; Mikkel F. Andersen
We study the dynamics of atoms in optical traps when exposed to laser cooling light that induces light-assisted collisions. We experimentally prepare individual atom pairs and observe their evolution. Due to the simplicity of the system (just two atoms in a microtrap) we can directly simulate the pairs dynamics, thereby revealing detailed insight into it. We find that often only one of the collision partners gets expelled, similar to when using blue detuned light for inducing the collisions. This enhances schemes for using light-assisted collisions to prepare individual atoms and affects other applications as well.
Entropy | 2014
Yin H. Fung; A. V. Carpentier; Pimonpan Sompet; Mikkel F. Andersen
We review light assisted collisions in a high-density far-off resonant optical trap (FORT). By tuning the parameters of the light that induces the collisions, the effects of the collisions can be controlled. Trap loss can be suppressed even at high atomic densities, allowing us to count the atoms using fluorescence detection. When only two atoms are trapped, individual loss events reveal new information about the process, and the simplicity of the system allows for a numerical simulation of the dynamics. By optimizing the experimental parameters, we implement an efficient method to prepare single atoms in the FORT. Our methods can be extended to load quantum registers for quantum information processing.
european quantum electronics conference | 2017
Mikkel F. Andersen; Pimonpan Sompet; Eyal Schwartz; Matthew D. J. Hunter
Complete control of individual atoms trapped in far-off resonance optical tweezers is vital for gaining a better understanding of the microscopic world. It will provide a platform with unprecedented flexibility for studying few-body physics, and might lead to new quantum technologies.
Physical Review A | 2017
Pimonpan Sompet; Yin H. Fung; Eyal Schwartz; Matt D. J. Hunter; Jindaratsamee Phrompao; Mikkel F. Andersen
We combine near--deterministic preparation of a single atom with Raman sideband cooling, to create a push button mechanism to prepare a single atom in the motional ground state of tightly focused optical tweezers. In the 2D radial plane, we achieve a large ground state fidelity for the entire procedure (loading and cooling) of
Technologies | 2016
Yin Fung; Pimonpan Sompet; Mikkel F. Andersen
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Physical Review A | 2015
Andrew J. Hilliard; Yin H. Fung; Pimonpan Sompet; A. V. Carpentier; Mikkel F. Andersen
0.73, while the ground state occupancy is
arXiv: Quantum Physics | 2018
Pimonpan Sompet; Stuart S. Szigeti; Eyal Schwartz; Ashton S. Bradley; Mikkel F. Andersen
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conference on lasers and electro optics | 2017
Pimonpan Sompet; Yin H. Fung; Eyal Schwartz; Matthew D. J. Hunter; Jindaratsamee Phrompao; Mikkel F. Andersen
0.88 for realizations with a single atom present. For 1D axial cooling, we attain a ground state fraction of
Bulletin of the American Physical Society | 2017
Pimonpan Sompet; Yin Hsien Fung; Eyal Schwartz; Matthew D. J. Hunter; Jindaratsamee Phrompao; Mikkel F. Andersen
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