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We consider the dynamics of generic chaotic quantum many-body systems with no conservation laws, subject to weak bulk dissipation. It was recently observed [T. Mori, arXiv:2311.10304] that the generator of these dissipative dynamics, a quantum channe
Externí odkaz:
http://arxiv.org/abs/2409.17238
Autor:
CAST Collaboration, Altenmüller, K., Anastassopoulos, V., Arguedas-Cuendis, S., Aune, S., Baier, J., Barth, K., Bräuninger, H., Cantatore, G., Caspers, F., Castel, J. F., Çetin, S. A., Christensen, F., Cogollos, C., Dafni, T., Davenport, M., Decker, T. A., Desch, K., Díez-Ibáñez, D., Döbrich, B., Ferrer-Ribas, E., Fischer, H., Funk, W., Galán, J., García, J. A., Gardikiotis, A., Giomataris, I., Golm, J., Hailey, C. H., Hasinoff, M. D., Hoffmann, D. H. H., Irastorza, I. G., Jacoby, J., Jakobsen, A. C., Jakovčić, K., Kaminski, J., Karuza, M., Kostoglou, S., Krieger, C., Lakić, B., Laurent, J. M., Luzón, G., Malbrunot, C., Margalejo, C., Maroudas, M., Miceli, L., Mirallas, H., Navarro, P., Obis, L., Özbey, A., Özbozduman, K., Papaevangelou, T., Pérez, O., Pivovaroff, M. J., Rosu, M., Ruiz-Chóliz, E., Ruz, J., Schmidt, S., Schumann, M., Semertzidis, Y. K., Solanki, S. K., Stewart, L., Vafeiadis, T., Vogel, J. K., Zioutas, K.
Publikováno v:
Phys. Rev. Lett. 133, 221005, 2024
Hypothetical axions provide a compelling explanation for dark matter and could be emitted from the hot solar interior. The CERN Axion Solar Telescope (CAST) has been searching for solar axions via their back conversion to X-ray photons in a 9-T 10-m
Externí odkaz:
http://arxiv.org/abs/2406.16840
We explore the robustness of the correlation matrix Hamiltonian reconstruction technique with respect to the choice of operator basis, studying the effects of bases that are undercomplete and over-complete -- too few or too many operators respectivel
Externí odkaz:
http://arxiv.org/abs/2311.09302
Autor:
Jacoby, J. Alexander, Marston, J. B.
We investigate two methods to reconstruct Hamiltonians of quantum matter, using a quantum spin chain to test them. The first method uses correlation functions and the second method uses entanglement spectra. The two methods are not specific to spin c
Externí odkaz:
http://arxiv.org/abs/2112.05107
Publikováno v:
J. Phys. A: Math. Theor. 56 015301 (2023)
We derive a general procedure for evaluating the ${\rm n}$th derivative of a time-dependent operator in the Heisenberg representation and employ this approach to calculate the zeroth to third spectral moment sum rules of the retarded electronic Green
Externí odkaz:
http://arxiv.org/abs/2108.03521
Publikováno v:
Phys. Rev. Accel. Beams 23, 013501 (2020)
A plasma window (PW) is a device for separating two areas of different pressures while letting particle beams pass with little to no loss. It has been introduced by A. Hershcovitch. In the course of this publication, the properties of a PW with apert
Externí odkaz:
http://arxiv.org/abs/1911.07584
Schroedinger developed an operator method for solving quantum mechanics. While this technique is overshadowed by his more familiar differential equation approach, it has found wide application as an illustration of supersymmetric quantum mechanics. O
Externí odkaz:
http://arxiv.org/abs/1906.02302
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Autor:
Anastassopoulos, V., Aune, S., Barth, K., Belov, A., Bräuninger, H., Cantatore, G., Carmona, J. M., Castel, J. F., Cetin, S. A., Christensen, F., Dafni, T., Davenport, M., Dermenev, A., Desch, K., Döbrich, B., Eleftheriadis, C., Fanourakis, G., Ferrer-Ribas, E., Fischer, H., Funk, W., García, J. A., Gardikiotis, A., Garza, J. G., Gazis, E. N., Geralis, T., Giomataris, I., Gninenko, S., Hailey, C. J., Hasinoff, M. D., Hoffmann, D. H. H., Iguaz, F. J., Irastorza, I. G., Jakobsen, A., Jacoby, J., Jakovčić, K., Kaminski, J., Karuza, M., Kostoglou, S., Kralj, N., Krčmar, M., Krieger, C., Lakić, B., Laurent, J. M., Liolios, A., Ljubičić, A., Luzón, G., Maroudas, M., Miceli, L., Neff, S., Ortega, I., Papaevangelou, T., Paraschou, K., Pivovaroff, M. J., Raffelt, G., Rosu, M., Ruz, J., Chóliz, E. Ruiz, Savvidis, I., Schmidt, S., Semertzidis, Y. K., Solanki, S. K., Stewart, L., Vafeiadis, T., Vogel, J. K., Vretenar, M., Wuensch, W., Yildiz, S. C., Zioutas, K., Brax, P.
We report on a new search for solar chameleons with the CERN Axion Solar Telescope (CAST). A GridPix detector was used to search for soft X-ray photons in the energy range from 200 eV to 10 keV from converted solar chameleons. No signiffcant excess o
Externí odkaz:
http://arxiv.org/abs/1808.00066
Autor:
CAST collaboration, Anastassopoulos, V., Aune, S., Barth, K., Belov, A., Brauninger, H., Cantatore, G., Carmona, J. M., Castel, J. F., Cetin, S. A., Christensen, F., Collar, J. I., Dafni, T., Davenport, M., Decker, T. A., Dermenev, A., Desch, K., Eleftheriadis, C., Fanourakis, G., Ferrer-Ribas, E., Fischer, H., Garcia, J. A., Gardikiotis, A., Garza, J. G., Gazis, E. N., Geralis, T., Giomataris, I., Gninenko, S., Hailey, C. J., Hasinoff, M. D., Hoffmann, D. H. H., Iguaz, F. J., Irastorza, I. G., Jakobsen, A., Jacoby, J., Jakovcic, K., Kaminski, J., Karuza, M., Kralj, N., Krcmar, M., Kostoglou, S., Krieger, Ch., Lakic, B., Laurent, J. M., Liolios, A., Ljubicic, A., Luzon, G., Maroudas, M., Miceli, L., Neff, S., Ortega, I., Papaevangelou, T., Paraschou, K., Pivovaroff, M. J., Raffelt, G., Rosu, M., Ruz, J., Choliz, E. Ruiz, Savvidis, I., Schmidt, S., Semertzidis, Y. K., Solanki, S. K., Stewart, L., Vafeiadis, T., Vogel, J. K., Yildiz, S. C., Zioutas, K.
Publikováno v:
Nature Phys. 13 (2017) 584-590
During 2003--2015, the CERN Axion Solar Telescope (CAST) has searched for $a\to\gamma$ conversion in the 9 T magnetic field of a refurbished LHC test magnet that can be directed toward the Sun. In its final phase of solar axion searches (2013--2015),
Externí odkaz:
http://arxiv.org/abs/1705.02290