Zobrazeno 1 - 10
of 22 544
pro vyhledávání: '"P Hodgson"'
Recently we introduced a local photon approach for modelling the quantised electromagnetic field in position space. Using this approach, in this paper we define the momentum of light, in analogy to the momentum of quantum mechanical point particles,
Externí odkaz:
http://arxiv.org/abs/2410.03633
Autor:
Kopaei, Ali Emami, Eswaran, Karthik Subramaniam, Kosior, Arkadiusz, Hodgson, Daniel, Matsko, Andrey, Taheri, Hossein, Beige, Almut, Sacha, Krzysztof
Periodic driving of systems of particles can create crystalline structures in time. Such systems can be used to study solid-state physics phenomena in the time domain. In addition, it is possible to engineer the wave-number band structure of optical
Externí odkaz:
http://arxiv.org/abs/2409.07885
Autor:
Park, Jongho, Zhao, Guang-Yao, Nakamura, Masanori, Mizuno, Yosuke, Pu, Hung-Yi, Asada, Keiichi, Takahashi, Kazuya, Toma, Kenji, Kino, Motoki, Cho, Ilje, Hada, Kazuhiro, Edwards, Phil G., Ro, Hyunwook, Kam, Minchul, Yi, Kunwoo, Lee, Yunjeong, Koyama, Shoko, Byun, Do-Young, Phillips, Chris, Reynolds, Cormac, Hodgson, Jeffrey A., Lee, Sang-Sung
We report the first observation of the nearby giant radio galaxy NGC 315 using a global VLBI array consisting of 22 radio antennas located across five continents, including high-sensitivity stations, at 22 GHz. Utilizing the extensive $(u,v)$-coverag
Externí odkaz:
http://arxiv.org/abs/2408.09069
Autor:
Vankadari, Madhu, Hodgson, Samuel, Shin, Sangyun, Markham, Kaichen Zhou Andrew, Trigoni, Niki
Self-supervised depth estimation algorithms rely heavily on frame-warping relationships, exhibiting substantial performance degradation when applied in challenging circumstances, such as low-visibility and nighttime scenarios with varying illuminatio
Externí odkaz:
http://arxiv.org/abs/2405.11158
Autor:
Paraschos, G. F., Debbrecht, L. C., Kramer, J. A., Traianou, E., Liodakis, I., Krichbaum, T. P., Kim, J. -Y., Janssen, M., Nair, D. G., Savolainen, T., Ros, E., Bach, U., Hodgson, J. A., Lisakov, M., MacDonald, N. R., Zensus, J. A.
Publikováno v:
A&A 686, L5 (2024)
The spatial scales of relativistic radio jets, probed by relativistic magneto-hydrodynamic jet launching simulations (RMHDs) and by most very-long-baseline interferometry (VLBI) observations differ by an order of magnitude. Bridging the gap between t
Externí odkaz:
http://arxiv.org/abs/2405.00097
Sentiment analysis (SA) has been, and is still, a thriving research area. However, the task of Arabic sentiment analysis (ASA) is still underrepresented in the body of research. This study offers the first in-depth and in-breadth analysis of existing
Externí odkaz:
http://arxiv.org/abs/2403.01921
Autor:
Hodgson, Liam, Bzdok, Danilo
The multivariate hypergeometric distribution describes sampling without replacement from a discrete population of elements divided into multiple categories. Addressing a gap in the literature, we tackle the challenge of estimating discrete distributi
Externí odkaz:
http://arxiv.org/abs/2402.14220
Autor:
Lee, Jee Won, Lee, Sang-Sung, Hodgson, Jeffrey, Juan-Carlos, Algaba, Kim, Sang-Hyun, Cheong, Whee Yeon, Jeong, Hyeon-Woo, Kang, Sincheol
We present the results of a spectral analysis using simultaneous multifrequency (22, 43, 86, and 129 GHz) very long baseline interferometry (VLBI) observations of the Korean VLBI Network (KVN) on BL Lac object, Markarian 421 (Mrk 421). The data we us
Externí odkaz:
http://arxiv.org/abs/2402.11899
Publikováno v:
Symmetry 16, 279 (2024)
The relativistic Doppler effect comes from the fact that observers in different inertial reference frames experience space and time differently, while the speed of light remains always the same. Consequently, a wave packet of light exhibits different
Externí odkaz:
http://arxiv.org/abs/2401.02175
Autor:
Traianou, Efthalia, Krichbaum, Thomas P., Gómez, José L., Lico, Rocco, Paraschos, Georgios Filippos, Cho, Ilje, Ros, Eduardo, Zhao, Guang-Yao, Liodakis, Ioannis, Dahale, Rohan, Toscano, Teresa, Fuentes, Antonio, Foschi, Marianna, Casadio, Carolina, MacDonald, Nicholas, Kim, Jae-Young, Hervet, Olivier, Jorstad, Svetlana, Lobanov, Andrei P., Hodgson, Jeffrey, Myserlis, Ioannis, Agudo, Ivan, Zensus, Anton J., Marscher, Alan P.
One of the most well-known extragalactic sources in the sky, quasar 3C 454.3, shows a curved parsec-scale jet that has been exhaustively monitored with very-long-baseline interferometry (VLBI) over the recent years. In this work, we present a compreh
Externí odkaz:
http://arxiv.org/abs/2312.15556