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Dynamical Control of Quantum Heat Engines Using Exceptional Points
J. -W. Zhang, J. -Q. Zhang, G. -Y. Ding +11
A quantum thermal machine is an open quantum system coupled to hot and cold thermal baths. Thus, its dynamics can be well understood using the concepts and tools from non-Hermitian…
Second-order Doppler frequency shifts of trapped ions in a linear Paul trap
S. N. Miao, J. W. Zhang, Y. Zheng +5
The accurate evaluation of the second-order Doppler frequency shift (SODFS) of trapped ions in a linear Paul trap has been studied with experiments and molecular dynamics (MD) simu…
High-Performance Microwave Frequency Standard Based on Sympathetically Cooled Ions
Hao-Ran Qin, Sheng-Nan Miao, Ji-Ze Han +4
The ion microwave frequency standard is a candidate for the next generation of microwave frequency standard with the potential for very wide applications. The Dick effect and secon…
Determination of hyperfine splittings and Landé factors of and states of Cd for a microwave frequency standard
J. Z. Han, R. Si, H. R. Qin +6
Regarding trapped-ion microwave-frequency standards, we report on the determination of hyperfine splittings and Landé factors of Cd. The hyperfine splittings…
Sympathetic cooling of a large ion crystal with in a linear Paul trap
S. N. Miao, H. R. Qin, N. C. Xin +3
We have sympathetically cooled and crystallized ions with laser-cooled ions, and directly observed the complete large bicrystal s…