Zobrazeno 1 - 10
of 2 047
pro vyhledávání: '"Morgan, P. W."'
Autor:
Terhune, J. E. S., Elwell, R., Tan, H. B. Tran, Perera, U. C., Morgan, H. W. T., Alexandrova, A. N., Derevianko, Andrei, Hudson, Eric R.
The population dynamics of the 229Th isomeric state is studied in a solid-state host under laser illumination. A photoquenching process is observed, where off-resonant vacuum-ultraviolet (VUV) radiation leads to relaxation of the isomeric state. The
Externí odkaz:
http://arxiv.org/abs/2412.08998
Autor:
Morgan, H. W. T., Tan, H. B. Tran, Elwell, R., Alexandrova, A. N., Hudson, Eric R., Derevianko, Andrei
Laser excitation of thorium-229 nuclei in doped wide bandgap crystals has been demonstrated recently, opening the possibility of developing ultrastable solid-state clocks and sensitive searches for new physics. We develop a quantitative theory of the
Externí odkaz:
http://arxiv.org/abs/2411.15641
Autor:
Lao, Guanming, Khvorost, Taras, Macias, Jr., Antonio, Morgan, Harry W. T., Lavroff, Robert H., Choi, Ryan, Zhou, Haowen, Usvyat, Denis, Zhu, Guo-Zhu, García-Garibay, Miguel A., Alexandrova, Anastassia N., Hudson, Eric R., Campbell, Wesley C.
Gas-phase molecules capable of repeatable, narrow-band spontaneous photon scattering are prized for direct laser cooling and quantum state detection. Recently, large molecules incorporating phenyl rings have been shown to exhibit similar vibrational
Externí odkaz:
http://arxiv.org/abs/2411.03199
Autor:
Morgan, H. W. T., Elwell, R., Terhune, J. E. S., Tan, H. B. Tran, Perera, U. C., Derevianko, A., Alexandrova, A. N., Hudson, E. R.
The recent laser excitation of the 229Th isomeric transition in a solid-state host opens the door for a portable solid-state nuclear optical clock. However, at present the vacuum-ultraviolet laser systems required for clock operation are not conduciv
Externí odkaz:
http://arxiv.org/abs/2410.23364
Autor:
Zhang, Chuankun, von der Wense, Lars, Doyle, Jack F., Higgins, Jacob S., Ooi, Tian, Friebel, Hans U., Ye, Jun, Elwell, R., Terhune, J. E. S., Morgan, H. W. T., Alexandrova, A. N., Tan, H. B. Tran, Derevianko, Andrei, Hudson, Eric R.
After nearly fifty years of searching, the vacuum ultraviolet $^{229}$Th nuclear isomeric transition has recently been directly laser excited [1,2] and measured with high spectroscopic precision [3]. Nuclear clocks based on this transition are expect
Externí odkaz:
http://arxiv.org/abs/2410.01753
Autor:
Pineda, S. V., Chhetri, P., Bara, S., Elskens, Y., Casci, S., Alexandrova, A. N., Au, M., Athanasakis-Kaklamanakis, M., Bartokos, M., Beeks, K., Bernerd, C., Claessens, A., Chrysalidis, K., Cocolios, T. E., Correia, J. G., De Witte, H., Elwell, R., Ferrer, R., Heinke, R., Hudson, E. R., Ivandikov, F., Kudryavtsev, Yu., Köster, U., Kraemer, S., Laatiaoui, M., Lica, R., Merckling, C., Morawetz, I., Morgan, H. W. T., Moritz, D., Pereira, L. M. C., Raeder, S., Rothe, S., Schaden, F., Scharl, K., Schumm, T., Stegemann, S., Terhune, J., Thirolf, P. G., Tunhuma, S. M., Bergh, P. Van Den, Van Duppen, P., Vantomme, A., Wahl, U., Yue, Z.
A comparative vacuum ultraviolet spectroscopy study conducted at ISOLDE-CERN of the radiative decay of the $^{229m}$Th nuclear clock isomer embedded in different host materials is reported. The ratio of the number of radiative decay photons and the n
Externí odkaz:
http://arxiv.org/abs/2408.12309
Autor:
Green, J, Emmanouilidou, Eve, Morgan, Harry W. T., Laderer, William T., Hu, Chaowei, Loera, Jonathan, Alexandrova, Anastassia N., Ni, Ni
Compared to time-reversal symmetry-protected Z2 topological insulators and Dirac/Weyl semimetals, there are significantly fewer candidates for topological crystalline insulators. SrAg4Sb2 is predicted to exhibit topological crystalline insulator beha
Externí odkaz:
http://arxiv.org/abs/2404.14561
Autor:
Elwell, R., Schneider, Christian, Jeet, Justin, Terhune, J. E. S., Morgan, H. W. T., Alexandrova, A. N., Tan, H. B. Tran, Derevianko, Andrei, Hudson, Eric R.
LiSrAlF$_6$ crystals doped with $^{229}$Th are used in a laser-based search for the nuclear isomeric transition. Two spectroscopic features near the nuclear transition energy are observed. The first is a broad excitation feature that produces red-shi
Externí odkaz:
http://arxiv.org/abs/2404.12311
Autor:
M. Isabel Casanova, Sangwan Park, Melaney A. Mayes, Karolina Roszak, Michelle Ferneding, Nayeli Echeverria, Morgan A. W. Bowman, Sarah R. Michalak, Monica Ardon, Sydni Wong, Sophie M. Le, Nicole Daley, Brian C. Leonard, Kathryn L. Good, Jennifer Y. Li, Sara M. Thomasy
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract This study evaluated the tolerability and efficacy of the topical rho-kinase inhibitor netarsudil for canine primary corneal endothelial degeneration (PCED). Twenty-six eyes of 21 client-owned dogs with PCED were enrolled in a prospective, r
Externí odkaz:
https://doaj.org/article/a49e420c580c4c079cb5d3dbf93afebc
Autor:
Burke, Colin J., Shen, Yue, Blaes, Omer, Gammie, Charles F., Horne, Keith, Jiang, Yan-Fei, Liu, Xin, McHardy, Ian M., Morgan, Christopher W., Scaringi, Simone, Yang, Qian
Publikováno v:
Science, Vol. 373, Issue 6556, pp. 789-792 (2021)
Accretion disks around supermassive black holes in active galactic nuclei produce continuum radiation at ultraviolet and optical wavelengths. Physical processes in the accretion flow lead to stochastic variability of this emission on a wide range of
Externí odkaz:
http://arxiv.org/abs/2108.05389