Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Bryan Hemingway"'
Publikováno v:
Proceedings of the 54th Annual Precise Time and Time Interval Systems and Applications Meeting.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c339b003254329ca0ae00f830871fb46
https://doi.org/10.33012/2023.18690
https://doi.org/10.33012/2023.18690
Publikováno v:
The Review of scientific instruments. 93(5)
We measure the spectrum of tellurium-130 in the vicinity of the 461 nm S01-P11 cycling transition in neutral strontium, a popular element for atomic clocks, quantum information, and quantum-degenerate gases. The lack of hyperfine structure in telluri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::0b140b6e7fa98c7d485999fc7a903219
https://pubmed.ncbi.nlm.nih.gov/35649769
https://pubmed.ncbi.nlm.nih.gov/35649769
Publikováno v:
Review of Scientific Instruments. 93
We measure the spectrum of tellurium-130 in the vicinity of the 461 nm S01−P11 cycling transition in neutral strontium, a popular element for atomic clocks, quantum information, and quantum-degenerate gases. The lack of hyperfine structure in tellu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::166b6b002b7fa2e7900c9db389d9405c
https://doi.org/10.1063/5.0084122
https://doi.org/10.1063/5.0084122
Publikováno v:
Phys Rev A (Coll Park)
We observe bimodal fluorescence patterns from atoms in a fast atomic beam when the laser excitation occurs in the presence of a magnetic field and the atoms sample only a portion of the laser profile. The behavior is well explained by competition bet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81105a40421d379fd942115698c71e4f
https://pubmed.ncbi.nlm.nih.gov/34796311
https://pubmed.ncbi.nlm.nih.gov/34796311
Publikováno v:
2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF).
We assess the limits to long-term frequency stability of a thermal calcium-beam optical clock from a variety of experimental parameters by measuring the change in clock frequency with changes in that parameter's value. Required regulation of the para
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7afa0c899b36ee90a616a9a8694fdfae
https://doi.org/10.1109/ifcs-isaf41089.2020.9234909
https://doi.org/10.1109/ifcs-isaf41089.2020.9234909
Publikováno v:
2018 IEEE International Frequency Control Symposium (IFCS).
Despite the remarkable progress in optical frequency standards over the past decade, the path toward continuously operating optical clocks remains challenging. We are investigating the prospect of achieving good long-term stability with a thermal ato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04b1577fa228e8609ac61069bf851d67
https://doi.org/10.1109/fcs.2018.8597569
https://doi.org/10.1109/fcs.2018.8597569
We have characterized the molecular tellurium (Te$_2$) spectrum in the vicinity of the 423nm $^1S_0-^1P_1$ and the 431nm $^3P_1-^3P_0$ transitions in neutral calcium. These transitions are relevant to optical clocks for atomic-beam characterization a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e31b097418593d9bd3d2f9766211bd88
We present a study of spin 1/2 Kondo singlets in single electron transistors under a microwave frequency bias excitation. We compare time-averaged conductance $G$ to predicted universal response with respect to microwave frequency, oscillation amplit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a76446f6feca83bc8c4dfa25b763cc13
http://arxiv.org/abs/1304.0037
http://arxiv.org/abs/1304.0037
Autor:
Anh T. Ngo, Andrei Kogan, Steven Herbert, Sergio E. Ulloa, Tai-Min Liu, Bryan Hemingway, Michael R. Melloch
We report detailed transport measurements in a quantum dot in a spin-flip co-tunneling regime, and a quantitative comparison of the data to microscopic theory. The quantum dot is fabricated by lateral gating of a GaAs/AlGaAs heterostructure, and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bb4fba9cd9396488acda662d49c9416
We have measured the magnetic splitting, $\Delta_K$, of a Kondo peak in the differential conductance of a Single-Electron Transistor while tuning the Kondo temperature, $T_K$, along two different paths in the parameter space: varying the dot-lead cou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80e0af934ca13c61b148ee24f5400794
http://arxiv.org/abs/0910.3180
http://arxiv.org/abs/0910.3180