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Wyświetlanie 1-10 z 11
Tytuł:
Realpoetik
Autorzy:
Hamilton, Paul
Kikiewicz, Jolanta
Tematy:
Kant
restauracja
Realpoetik
Realpolitik
Pokaż więcej
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Powiązania:
https://bibliotekanauki.pl/articles/1364878.pdf  Link otwiera się w nowym oknie
Opis:
Autor wskazuje na niewykorzystaną możliwość odczytania ukrytego projektu polityczności romantyzmu europejskiego. W perspektywie porównawczej można zauważyć zbieżność różnych odmian literackiego romantyzmu dążącego do wymyślenia polityki będącej alternatywą zarówno dla czasów napoleońskich, jak i dla decyzji Kongresu Wiedeńskiego.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intensity interferometry for ultralight bosonic dark matter detection
Autorzy:
Smiga, Joseph A.
Wickenbrock, Arne
Gramolin, Alexander V.
Palm, Christopher A.
Figueroa, Nathaniel L.
Hamilton, Paul S.
Khamis, Sami
Budker, Dmitry
Stadnik, Yevgeny V.
Centers, Gary P.
Pustelny, Szymon
Jackson Kimball, Derek F.
Ariday, Bordon
Masia-Roig, Hector
Sushkov, Alexander O.
Opis:
Ultralight bosonic dark matter (UBDM) can be described by a classical wavelike field oscillating near the Compton frequency of the bosons. If a measurement scheme for the direct detection of UBDM interactions is sensitive to a signature quadratic in the field, then there is a near-zero-frequency (dc) component of the signal. Thus, a detector with a given finite bandwidth can be used to search for bosons with Compton frequencies many orders of magnitude larger than its bandwidth. This opens the possibility of a detection scheme analogous to Hanbury Brown and Twiss intensity interferometry. Assuming that the UBDM is virialized in the Galactic gravitational potential, the random velocities produce slight deviations from the Compton frequency. These result in stochastic fluctuations of the intensity on a timescale determined by the spread in kinetic energies. In order to mitigate ubiquitous local low-frequency noise, a network of sensors can be used to search for the stochastic intensity fluctuations by measuring cross-correlation between the sensors. This method is inherently broadband, since a large range of Compton frequencies will yield near-zero-frequency components within the sensor bandwidth that can be searched for simultaneously. Measurements with existing sensor networks have sufficient sensitivity to search experimentally unexplored parameter space.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Multimessenger search for exotic field emission with a global magnetometer network
Autorzy:
Shin, Y. C.
Kim, D.
Semertzidis, Y. K.
Peng, X.
Ruimi, O. M.
Park, S. Y.
Klinger, E.
Pustelny, Szymon
Givon, M.
Segura, P. C.
Kimball, D. F. Jackson
Figueroa, N. L.
Buchler, B. C.
Gavilán-Martín, D.
Wickenbrock, A.
Zhang, J.
Hedges, M. P.
Łukasiewicz, Grzegorz
Budker, D.
Stalnaker, J. E.
Kryemadhi, A.
Kornack, T.
Padniuk, Mikhail
Khamis, Sami S.
Wu, T.
Masia-Roig, H.
Guo, H.
Zhao, Y.
Kukowski, N.
Palm, C. A.
Scholtes, T.
Tandon, D.
Wilson, T. Z.
Hamilton, Paul
Afach, S.
Folman, R.
Pospelov, M.
Rosenzweig, Y.
Grujić, Z. D.
Sulai, Ibrahim A.
Weis, A.
Opis:
The history of astronomy has shown that advances in sensing methods open up new windows to the Universe and often lead to unexpected discoveries. Quantum sensor networks in combination with traditional astronomical observations are emerging as a novel modality for multimessenger astronomy. Here we develop a generic analysis framework that uses a data-driven approach to model the sensitivity of a quantum sensor network to astrophysical signals as a consequence of beyond-the-standard model (BSM) physics. The analysis method evaluates correlations between sensors to search for BSM signals coincident with astrophysical triggers, such as black hole mergers, supernovae, or fast radio bursts. Complementary to astroparticle approaches that search for particlelike signals (e.g., weakly interacting massive particles), quantum sensors are sensitive to wavelike signals from exotic quantum fields. This analysis method can be applied to networks of different types of quantum sensors, such as atomic clocks, matter-wave interferometers, and nuclear clocks, which can probe many types of interactions between BSM fields and standard model particles. We use this analysis method to carry out the first direct search utilizing a terrestrial network of precision quantum sensors for BSM fields emitted during a black hole merger. Specifically, we use the global network of optical magnetometers for exotic physics (GNOME) to perform a search for exotic low-mass field (ELF) bursts generated in coincidence with a gravitational-wave signal from a binary black hole merger (GW200311_115853) detected by LIGO/Virgo on the March 11, 2020. The associated gravitational wave heralds the arrival of the ELF burst that interacts with the spins of fermions in the magnetometers. This enables GNOME to serve as a tool for multimessenger astronomy. Our search found no significant events and, consequently, we place the first lab-based limits on combinations of ELF production and coupling parameters.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Search for topological defect dark matter with a global network of optical magnetometers
Autorzy:
Dailey, Conner
Kornack, Thomas
Wang, Tao
Masia-Roig, Hector
Hamilton, Paul S.
Sheng, Dong
Smiga, Joseph A.
Weis, Antoine
Buchler, Ben C.
Jackson Kimball, Derek F.
Grujić, Zoran D.
Stalnaker, Jason E.
Monroy, Madeline
Sulai, Ibrahim
Pustelny, Szymon
Peng, Xiang
Khamis, Sami
Kim, Dongok
Wilson, Tatum
Lebedev, Victor
Wickenbrock, Arne
Hedges, Morgan
Paul, Karun V.
Zhang, Jianwei
Pospelov, Maxim
Padniuk, Mikhail
Budker, Dmitry
Palm, Christopher A.
Derevianko, Andrei
Tandon, Dhruv
Figueroa, Nataniel L.
Gerhardt, Ilja
Segura, Perrin C.
Lu, Zheng-Tian
Afach, Samer
Semertzidis, Yannis K.
Penaflor, Alexander
Wu, Teng
Wurm, David
Yu, Dongrui
Yang, Yucheng
Scholtes, Theo
Dumont, Vincent
Shin, Yun Chang
Park, Sun Yool
Hao, Chuanpeng
Guo, Hong
Preston, Rayshaun
Xiao, Wei
Opis:
Ultralight bosons such as axion-like particles are viable candidates for dark matter. They can form stable, macroscopic field configurations in the form of topological defects that could concentrate the dark matter density into many distinct, compact spatial regions that are small compared with the Galaxy but much larger than the Earth. Here we report the results of the search for transient signals from the domain walls of axion-like particles by using the global network of optical magnetometers for exotic (GNOME) physics searches. We search the data, consisting of correlated measurements from optical atomic magnetometers located in laboratories all over the world, for patterns of signals propagating through the network consistent with domain walls. The analysis of these data from a continuous month-long operation of GNOME finds no statistically significant signals, thus placing experimental constraints on such dark matter scenarios.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
PRISM (Polarized Radiation Imaging and Spectroscopy Mission) : an extended white paper
Autorzy:
Negrello, Mattia
Tartari, Andrea
Naselsky, Pavel
Comis, Barbara
Silva, Antonio Da
Piacentini, Francesco
Rosset, Cyrille
Nati, Federico
Fosalba, Pablo
Perrotta, Francesca
Petris, Marco de
Cuttaia, Francesco
Battye, Richard
Ghribi, Adnan
Chluba, Jens
Trombetti, Tiziana
Lattanzi, Massimiliano
Verde, Licia
Maino, Davide
Avillez, Miguel de
Bouchet, François
Mangilli, Anna
Macias-Perez, Juan
Bucher, Martin
Stompor, Radek
Fuller, Gary
Enßlin, Torsten
Bendo, George
Boulanger, François
Davis, Richard
Liguori, Michele
Bartolo, Nicola
Grainge, Keith
Béthermin, Matthieu
Barreiro, Belen
Falgarone, Edith
Martinez-Gonzalez, Enrique
Errard, Josquin
André, Philippe
Ponthieu, Nicolas
Banday, Anthony
Bonaldi, Anna
Lesgourgues, Julien
Natoli, Paolo
Tristram, Matthieu
Castex, Guillaume
Pollo, Agnieszka
Wandelt, Ben
Zotti, Gianfranco de
Watson, Robert
Liuzzo, Elisabetta
Trappe, Neil
Challinor, Anthony
Hamilton, Jean-Christophe
Schillaci, Alessandro
Bernard, Jean-Philippe
Noviello, Fabio
Paladino, Rosita
Rubino-Martin, Jose-Alberto
Delabrouille, Jacques
Ganga, Ken
Lopez-Caniego, Marcos
Burigana, Carlo
Massardi, Marcella
Casasola, Viviana
Mennella, Aniello
Rosa, Adriano de
Ferrière, Katia
Camus, Philippe
Miville-Deschênes, Marc-Antoine
Silk, Joseph
Murphy, Anthony
Shellard, Paul
Cai, Zhen-Yi
Palanque-Delabrouille, Nathalie
Jackson, Mark
Khatri, Rishi
Bartlett, James
Martins, Carlos J. A. P.
Paoletti, Daniela
Casas, Francisco
Piccirillo, Lucio
Giard, Martin
Herranz, Diego
Melchiorri, Alessandro
Bersanelli, Marco
Hernandez-Monteagudo, Carlos
Chon, Gayoung
Hall, Alex
Dunkley, Joanna
Barbosa, Domingos
Galli, Silvia
Ferreira, Pedro
Colafrancesco, Sergio
Monfardini, Alessandro
Bernardis, Paolo de
Maffei, Bruno
Matarrese, Sabino
Polenta, Gianluca
Lamagna, Luca
Jaffe, Andrew
Benoȋt, Alain
García-Bellido, Juan
Masi, Silvia
Dickinson, Clive
Toffolatti, Luigi
Tucci, Marco
Weijgaert, Rien Van de
Paci, Francesco
Ricciardi, Sara
Finelli, Fabio
Gonzalez-Nuevo, Joaquin
Gruppuso, Alessandro
Kunz, Martin
Fletcher, Andrew
Giraud-Héraud, Yannick
Roman, Matthieu
Baccigalupi, Carlo
Désert, François-Xavier
Peiris, Hiranya
Vielva, Patricio
Terenzi, Luca
Salatino, Maria
Bielewicz, Pawel
O'Sullivan, Créidhe
Tent, Bartjan Van
Leahy, Paddy
Brand, Jan
Remazeilles, Mathieu
Pisano, Giampaolo
Sunyaev, Rashid
Withington, Stafford
Starobinsky, Alexei
Melin, Jean-Baptiste
Tomasi, Maurizio
Pagano, Luca
Haverkorn, Marijke
D'Alessandro, Giuseppe
Piat, Michel
Battistelli, Elia
Diego, Jose Maria
Mignano, Arturo
Opis:
PRISM (Polarized Radiation Imaging and Spectroscopy Mission) was proposed to ESA in May 2013 as a large-class mission for investigating within the framework of the ESA Cosmic Vision program a set of important scientific questions that require high resolution, high sensitivity, full-sky observations of the sky emission at wavelengths ranging from millimeter-wave to the far-infrared. PRISM's main objective is to explore the distant universe, probing cosmic history from very early times until now as well as the structures, distribution of matter, and velocity flows throughout our Hubble volume. PRISM will survey the full sky in a large number of frequency bands in both intensity and polarization and will measure the absolute spectrum of sky emission more than three orders of magnitude better than COBE FIRAS. The data obtained will allow us to precisely measure the absolute sky brightness and polarization of all the components of the sky emission in the observed frequency range, separating the primordial and extragalactic components cleanly from the galactic and zodiacal light emissions. The aim of this Extended White Paper is to provide a more detailed overview of the highlights of the new science that will be made possible by PRISM, which include: (1) the ultimate galaxy cluster survey using the Sunyaev-Zeldovich (SZ) effect, detecting approximately 10^{6} clusters extending to large redshift, including a characterization of the gas temperature of the brightest ones (through the relativistic corrections to the classic SZ template) as well as a peculiar velocity survey using the kinetic SZ effect that comprises our entire Hubble volume; (2) a detailed characterization of the properties and evolution of dusty galaxies, where the most of the star formation in the universe took place, the faintest population of which constitute the diffuse CIB (Cosmic Infrared Background); (3) a characterization of the B modes from primordial gravity waves generated during inflation and from gravitational lensing, as well as the ultimate search for primordial non-Gaussianity using CMB polarization, which is less contaminated by foregrounds on small scales than the temperature anisotropies; (4) a search for distortions from a perfect blackbody spectrum, which include some nearly certain signals and others that are more speculative but more informative; and (5) a study of the role of the magnetic field in star formation and its interaction with other components of the interstellar medium of our Galaxy. These are but a few of the highlights presented here along with a description of the proposed instrument.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Wyświetlanie 1-10 z 11

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