Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Thai M. Hoang"'
Autor:
Thai M. Hoang, Sang K. Chung, Thanh Le, Sehyun Park, Sung-Jin Park, J. Gary Eden, Christopher Holland, Hao Wang, Omeed Momeni, Russell Bradley, Scott Crane, John D. Prestage, Nan Yu
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract Modern communication and navigation systems are increasingly relying on atomic clocks. As timing precision requirements increase, demands for lower SWaP (size, weight, and power) clocks rise. However, it has been challenging to break through
Externí odkaz:
https://doaj.org/article/ff049da846524f71ac2fc1c6b2391180
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
Hybrid systems coupling electron spins and optomechanical responses are of potential use in quantum information systems and sensing technology. Here, the authors demonstrate optical levitation of nanodiamonds and the control of their nitrogen vacancy
Externí odkaz:
https://doaj.org/article/b3e3380892504a71af198fc030b4d3c3
Autor:
Christopher E. Holland, Sung-Jin Park, Lin Yi, Thanh Le, Sang K. Chung, Nan Yu, Thai M. Hoang, John D. Prestage, J. Gary Eden, Robert L. Tjoelker, Sehyun Park
Publikováno v:
2021 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS).
In this work, we report a prototype of micro mercury trapped ion atomic clock. All the clock components have been packaged and demonstrated in a magnetic shield box of 4 liters. The prototype clock shows promising performance with a short-term fracti
Publikováno v:
2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF).
In this paper, we report our recent effort on developing a micro mercury trapped ion atomic clock. In particular, we present preliminary results of a mercury-ion clock using a 15-cc vacuum trap tube. The mercury-ion clock can achieve a short-term fra
Publikováno v:
Physical Review A. 101
Autor:
Christopher E. Holland, Nan Yu, Thai M. Hoang, Sehyun Park, Thanh Le, John D. Prestage, J. Gary Eden, Robert L. Tjoelker, Sung-Jin Park, Lin Yi, Sang K. Chung
Publikováno v:
Applied Physics Letters. 119:044001
Mercury trapped ion clocks have demonstrated great long-term frequency stability and robustness. In this paper, we report a demonstration of an integrated 100-cc physics package in an effort to develop a micromercury trapped ion clock with high frequ
Publikováno v:
Physical Review A. 100
We present experimental studies of atom-ion collisions using buffer-gas cooled, trapped ytterbium (Yb$^+$) ions immersed in potassium (K) vapor. The range of the collisional temperature is on the order of several hundred kelvin (thermal regime). We h
Publikováno v:
2019 Joint Conference of the IEEE International Frequency Control Symposium and European Frequency and Time Forum (EFTF/IFC).
Trapped mercury ion is a promising candidate for portable and operational atomic clocks. It operates at the 40.5GHz ground state hyperfine transition of199Hg ions. Mercury ions are confined in a linear RF trap, buffer-gas cooled, with a long ion stor
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
Nature Communications
Nature Communications
Electron spins of diamond nitrogen-vacancy (NV) centres are important quantum resources for nanoscale sensing and quantum information. Combining NV spins with levitated optomechanical resonators will provide a hybrid quantum system for novel applicat
Autor:
Qinkai Han, Jonghoon Ahn, Thai M. Hoang, Jaehoon Bang, Zhujing Xu, Yu-Hao Deng, Tongcang Li, Ren-Min Ma
Publikováno v:
PHYSICAL REVIEW LETTERS
Levitated optomechanics has great potentials in precision measurements, thermodynamics, macroscopic quantum mechanics and quantum sensing. Here we synthesize and optically levitate silica nanodumbbells in high vacuum. With a linearly polarized laser,