Zobrazeno 1 - 10
of 16 456
pro vyhledávání: '"van As, K."'
Autor:
HAYSTAC Collaboration, Bai, Xiran, Jewell, M. J., Echevers, J. M., van Bibber, K., Cahn, S. B., Droster, A., Esmat, Maryam H., Ghosh, Sumita, Graham, Eleanor, Jackson, H., Laffan, Claire, Lamoreaux, S. K., Leder, A. F., Lehnert, K. W., Lewis, S. M., Maruyama, R. H., Nath, R. D., Rapidis, N. M., Ruddy, E. P., Silva-Feaver, M., Simanovskaia, M., Singh, Sukhman, Speller, D. H., Zacarias, Sabrina, Zhu, Yuqi
This Letter reports new results from the HAYSTAC experiment's search for dark matter axions in our galactic halo. It represents the widest search to date that utilizes squeezing to realize sub-quantum limited noise. The new results cover 1.71 $\mu$eV
Externí odkaz:
http://arxiv.org/abs/2409.08998
We present a novel method to measure the arrival time statistics of continuous electron beams with sub-ps resolution, based on the combination of an RF deflection cavity and fast single electron imaging. We observe Poissonian statistics within time b
Externí odkaz:
http://arxiv.org/abs/2310.09248
Railway transition zones (RTZs) experience higher rates of degradation compared to open tracks, which leads to increased maintenance costs and reduced vailability. Despite existing literature on railway track assessment and maintenance, effective des
Externí odkaz:
http://arxiv.org/abs/2310.07956
Autor:
Haffert, S. Y., Males, J. R., Ahn, K., Van Gorkom, K., Guyon, O., Close, L. M., Long, J. D., Hedglen, A. D., Schatz, L., Kautz, M., Lumbres, J., Rodack, A., Knight, J. M., Miller, K.
Publikováno v:
A&A 673, A28 (2023)
Direct imaging of Earth-like planets is one of the main science cases for the next generation of extremely large telescopes. This is very challenging due to the star-planet contrast that must be overcome. Most current high-contrast imaging instrument
Externí odkaz:
http://arxiv.org/abs/2303.13719
Autor:
DMRadio Collaboration, AlShirawi, A., Bartram, C., Benabou, J. N., Brouwer, L., Chaudhuri, S., Cho, H. -M., Corbin, J., Craddock, W., Droster, A., Foster, J. W., Fry, J. T., Graham, P. W., Henning, R., Irwin, K. D., Kadribasic, F., Kahn, Y., Keller, A., Kolevatov, R., Kuenstner, S., Kurita, N., Leder, A. F., Li, D., Ouellet, J. L., Pappas, K. M. W., Phipps, A., Rapidis, N. M., Safdi, B. R., Salemi, C. P., Simanovskaia, M., Singh, J., van Assendelft, E. C., van Bibber, K., Wells, K., Winslow, L., Wisniewski, W. J., Young, B. A.
DMRadio-m$^3$ is an experiment that is designed to be sensitive to KSVZ and DFSZ QCD axion models in the 10-200 MHz (41 neV$/c^2$ - 0.83 $\mu$eV/$c^2$) range. The experiment uses a solenoidal dc magnetic field to convert an axion dark-matter signal t
Externí odkaz:
http://arxiv.org/abs/2302.14084
Autor:
Holmes-Hewett, W. F., Van Koughnet, K., Miller, J. D., Ruck, B. J., Trodahl, H. J., Buckley, R. G.
Nitrogen vacancy doped SmN$_{1-\delta}$ is a semiconductor which lies in the intermediary between insulating-ferromagnetic SmN and metallic-anti-ferromagnetic Sm. The dopant electrons resulting from nitrogen vacancies have recently been predicted to
Externí odkaz:
http://arxiv.org/abs/2302.06151
Autor:
HAYSTAC Collaboration, Jewell, M. J., Leder, A. F., Backes, K. M., Bai, Xiran, van Bibber, K., Brubaker, B. M., Cahn, S. B., Droster, A., Esmat, Maryam H., Ghosh, Sumita, Graham, Eleanor, Hilton, Gene C., Jackson, H., Laffan, Claire, Lamoreaux, S. K., Lehnert, K. W., Lewis, S. M., Malnou, M., Maruyama, R. H., Palken, D. A., Rapidis, N. M., Ruddy, E. P., Simanovskaia, M., Singh, Sukhman, Speller, D. H., Vale, Leila R., Wang, H., Zhu, Yuqi
A search for dark matter axions with masses $>10 \mu eV/c^{2}$ has been performed using the HAYSTAC experiment's squeezed state receiver to achieve sub-quantum limited noise. This report includes details of the design and operation of the experiment
Externí odkaz:
http://arxiv.org/abs/2301.09721
Autor:
van Leeuwen, K. A. H., Schaap, W. J., Buijsse, B., Borelli, S., Kempers, S. T., Verhoeven, W., Luiten, O. J.
We propose a scheme for constructing a phase plate for use in an ultrafast Zernike-type phase contrast electron microscope, based on the interaction of the electron beam with a strongly focused, high-power femtosecond laser pulse and a pulsed electro
Externí odkaz:
http://arxiv.org/abs/2209.03201
We describe the solution of an optimal stopping problem for a stable L\'evy process killed at state-dependent rate, which can be seen as a model for bankruptcy. The killing rate is chosen in such a way that the killed process remains self-similar, an
Externí odkaz:
http://arxiv.org/abs/2207.03610
Autor:
Nousiainen, J., Rajani, C., Kasper, M., Helin, T., Haffert, S. Y., Vérinaud, C., Males, J. R., Van Gorkom, K., Close, L. M., Long, J. D., Hedglen, A. D., Guyon, O., Schatz, L., Kautz, M., Lumbres, J., Rodack, A., Knight, J. M., Miller, K.
Publikováno v:
A&A 664, A71 (2022)
The direct imaging of potentially habitable Exoplanets is one prime science case for the next generation of high contrast imaging instruments on ground-based extremely large telescopes. To reach this demanding science goal, the instruments are equipp
Externí odkaz:
http://arxiv.org/abs/2205.07554