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个人简介
I'm currently working on an experiment designed to measure reaction rate constants of ion-molecule reactions at low temperatures and densities, relevant for astrochemistry.
We are building a merged beam experiment in which helium atoms excited to Rydberg states are deflected by a surface electrode device and merged with a ground state beam of CO, N2, H2 and other possible reaction partners. The idea is that since the helium atom is in a Rydberg state and not in an ionic form (1) heating due to stray electric fields is greatly reduced, and (2) the velocity, direction and spacial confinement of the helium packet can be controlled to a very high degree. The presence of the Rydberg electron, on the other hand, has negligible influence on the ion-molecule reaction.
In the past year, we have successfully demonstrated that we can trap Rydberg helium atoms at cryogenic temperatures, at which blackbody transitions are significantly suppressed, above the surface of a chip-decelerator for lifetimes limited by the fluorescence lifetime of the excited Rydberg-Stark states.
My wider reserach interests include - Rydberg atoms for applications in cavity QED experiments and as sensitive probes, cold molecules for experiments probing physics beyond the standard model, quantum information theory, astrochemistry and particle physics.
We are building a merged beam experiment in which helium atoms excited to Rydberg states are deflected by a surface electrode device and merged with a ground state beam of CO, N2, H2 and other possible reaction partners. The idea is that since the helium atom is in a Rydberg state and not in an ionic form (1) heating due to stray electric fields is greatly reduced, and (2) the velocity, direction and spacial confinement of the helium packet can be controlled to a very high degree. The presence of the Rydberg electron, on the other hand, has negligible influence on the ion-molecule reaction.
In the past year, we have successfully demonstrated that we can trap Rydberg helium atoms at cryogenic temperatures, at which blackbody transitions are significantly suppressed, above the surface of a chip-decelerator for lifetimes limited by the fluorescence lifetime of the excited Rydberg-Stark states.
My wider reserach interests include - Rydberg atoms for applications in cavity QED experiments and as sensitive probes, cold molecules for experiments probing physics beyond the standard model, quantum information theory, astrochemistry and particle physics.
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PHYSICAL REVIEW Xno. 1 (2024)
Physical Review Xno. 1 (2023): 011034
Journal of Physical Chemistry Ano. 6 (2023): 1458-1468
CHIMIAno. 4 (2023): 221-224
Chimiano. 4 (2023): 221-224
JOURNAL OF PHYSICAL CHEMISTRY A (2023)
Physical chemistry chemical physics : PCCPno. 5 (2022): 2843-2858
Physical reviewno. 5 (2022)
Physical Chemistry Chemical Physicsno. 26 (2022): 16360-16373
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