Zobrazeno 1 - 10
of 589
pro vyhledávání: '"Lämmerzahl, C"'
Autor:
Gödtel, S., Lämmerzahl, C.
In this work, we study low-lying collective excitations of a Bose-Einstein condensate with Newtonian and Yukawa-like two-particle interaction and derive boundaries for both Yukawa parameters. Using a variational approach, we explicitly show for spher
Externí odkaz:
http://arxiv.org/abs/2304.01310
Autor:
Addazi, A., Alvarez-Muniz, J., Batista, R. Alves, Amelino-Camelia, G., Antonelli, V., Arzano, M., Asorey, M., Atteia, J. -L., Bahamonde, S., Bajardi, F., Ballesteros, A., Baret, B., Barreiros, D. M., Basilakos, S., Benisty, D., Birnholtz, O., Blanco-Pillado, J. J., Blas, D., Bolmont, J., Boncioli, D., Bosso, P., Calcagni, G., Capozziello, S., Carmona, J. M., Cerci, S., Chernyakova, M., Clesse, S., Coelho, J. A. B., Colak, S. M., Cortes, J. L., Das, S., D'Esposito, V., Demirci, M., Di Luca, M. G., di Matteo, A., Dimitrijevic, D., Djordjevic, G., Prester, D. Dominis, Eichhorn, A., Ellis, J., Escamilla-Rivera, C., Fabiano, G., Franchino-Viñas, S. A., Frassino, A. M., Frattulillo, D., Funk, S., Fuster, A., Gamboa, J., Gent, A., Gergely, L. Á., Giammarchi, M., Giesel, K., Glicenstein, J. -F., Gracia-Bondía, J., Gubitosi, G., Guendelman, E. I., Gutierrez-Sagredo, I., Haegel, L., Heefer, S., Held, A., Herranz, F. J., Hinderer, T., Illana, J. I., Ioannisian, A., Jetzer, P., Joaquim, F. R., Kampert, K. -H., Uysal, A. Karasu, Katori, T., Kazarian, N., Kerszberg, D., Kowalski-Glikman, J., Kuroyanagi, S., Lämmerzahl, C., Said, J. Levi, Liberati, S., Lim, E., Lobo, I. P., López-Moya, M., Luciano, G. G., Manganaro, M., Marcianò, A., Martín-Moruno, P., Martinez, Manel, Martinez, Mario, Martínez-Huerta, H., Martínez-Miravé, P., Masip, M., Mattingly, D., Mavromatos, N., Mazumdar, A., Méndez, F., Mercati, F., Micanovic, S., Mielczarek, J., Miller, A. L., Milosevic, M., Minic, D., Miramonti, L., Mitsou, V. A., Moniz, P., Mukherjee, S., Nardini, G., Navas, S., Niechciol, M., Nielsen, A. B., Obers, N. A., Oikonomou, F., Oriti, D., Paganini, C. F., Palomares-Ruiz, S., Pasechnik, R., Heros, C. Pérez de los, Pfeifer, C., Pieroni, M. P., Piran, T., Platania, A., Rastgoo, S., Relancio, J. J., Reyes, M. A., Ricciardone, A., Risse, M., Frias, M. D. Rodriguez, Rosati, G., Rubiera-Garcia, D., Sahlmann, H., Sakellariadou, M., Salamida, F., Saridakis, E. N., Satunin, P., Schiffer, M., Schüssler, F., Sigl, G., Sitarek, J., Peracaula, J. Solà, Sopuerta, C. F., Sotiriou, T. P., Spurio, M., Staicova, D., Stergioulas, N., Stoica, S., Strišković, J., Stuttard, T., Cerci, D. Sunar, Tavakoli, Y., Ternes, C. A., Terzić, T., Thiemann, T., Tinyakov, P., Torri, M. D. C., Tórtola, M., Trimarelli, C., Trześniewski, T., Tureanu, A., Urban, F. R., Vagenas, E. C., Vernieri, D., Vitagliano, V., Wallet, J. -C., Zornoza, J. D.
Publikováno v:
Progress in Particle and Nuclear Physics, Volume 125, July 2022, 103948
The exploration of the universe has recently entered a new era thanks to the multi-messenger paradigm, characterized by a continuous increase in the quantity and quality of experimental data that is obtained by the detection of the various cosmic mes
Externí odkaz:
http://arxiv.org/abs/2111.05659
Autor:
Albers, H., Corgier, R., Herbst, A., Rajagopalan, A., Schubert, C., Vogt, C., Woltmann, M., Lämmerzahl, C., Herrmann, S., Charron, E., Ertmer, W., Rasel, E. M., Gaaloul, N., Schlippert, D.
Publikováno v:
Commun Phys 5, 60 (2022)
The stability of matter-wave sensors benefits from interrogating large-particle-number atomic ensembles at high cycle rates. The use of quantum-degenerate gases with their low effective temperatures allows constraining systematic errors towards highe
Externí odkaz:
http://arxiv.org/abs/2109.08608
Autor:
Albers, H., Herbst, A., Richardson, L. L., Heine, H., Nath, D., Hartwig, J., Schubert, C., Vogt, C., Woltmann, M., Lämmerzahl, C., Herrmann, S., Ertmer, W., Rasel, E. M., Schlippert, D.
Publikováno v:
Eur. Phys. J. D (2020) 74: 145
We report on an improved test of the Universality of Free Fall using a rubidium-potassium dual-species matter wave interferometer. We describe our apparatus and detail challenges and solutions relevant when operating a potassium interferometer, as we
Externí odkaz:
http://arxiv.org/abs/2003.00939
Autor:
Schubert, C, Hartwig, J, Ahlers, H, Posso-Trujillo, K, Gaaloul, N., Velte, U., Landragin, A., Bertoldi, A., Battelier, B., Bouyer, P., Sorrentino, F., Tino, G. M., Krutzik, M., Peters, A., Herrmann, S., Lämmerzahl, C., Cacciapouti, L., Rocco, E., Bongs, K., Ertmer, W., Rasel, E. M.
In this paper we discuss in detail an experimental scheme to test the universality of free fall (UFF) with a differential $^{87}$Rb / $^{85}$Rb atom interferometer applicable for extended free fall of several seconds in the frame of the STE-QUEST mis
Externí odkaz:
http://arxiv.org/abs/1312.5963
Autor:
Aguilera, D., Ahlers, H., Battelier, B., Bawamia, A., Bertoldi, A., Bondarescu, R., Bongs, K., Bouyer, P., Braxmaier, C., Cacciapuoti, L., Chaloner, C., Chwalla, M., Ertmer, W., Franz, M., Gaaloul, N., Gehler, M., Gerardi, D., Gesa, L., Gürlebeck, N., Hartwig, J., Hauth, M., Hellmig, O., Herr, W., Herrmann, S., Heske, A., Hinton, A., Ireland, P., Jetzer, P., Johann, U., Krutzik, M., Kubelka, A., Lämmerzahl, C., Landragin, A., Lloro, I., Massonnet, D., Mateos, I., Milke, A., Nofrarias, M., Oswald, M., Peters, A., Posso-Trujillo, K., Rasel, E., Rocco, E., Roura, A., Rudolph, J., Schleich, W., Schubert, C., Schuldt, T., Seidel, S., Sengstock, K., Sopuerta, C. F., Sorrentino, F., Summers, D., Tino, G. M., Trenkel, C., Uzunoglu, N., von Klitzing, W., Walser, R., Wendrich, T., Wenzlawski, A., Weßels, P., Wicht, A., Wille, E., Williams, M., Windpassinger, P., Zahzam, N.
The theory of general relativity describes macroscopic phenomena driven by the influence of gravity while quantum mechanics brilliantly accounts for microscopic effects. Despite their tremendous individual success, a complete unification of fundament
Externí odkaz:
http://arxiv.org/abs/1312.5980
Autor:
Müntinga, H., Ahlers, H., Krutzik, M., Wenzlawski, A., Arnold, S., Becker, D., Bongs, K., Dittus, H., Duncker, H., Gaaloul, N., Gherasim, C., Giese, E., Grzeschik, C., Hänsch, T. W., Hellmig, O., Herr, W., Herrmann, S., Kajari, E., Kleinert, S., Lämmerzahl, C., Lewoczko-Adamczyk, W., Malcolm, J., Meyer, N., Nolte, R., Peters, A., Popp, M., Reichel, J., Roura, A., Rudolph, J., Schiemangk, M., Schneider, M., Seidel, S. T., Sengstock, K., Tamma, V., Valenzuela, T., Vogel, A., Walser, R., Wendrich, T., Windpassinger, P., Zeller, W., van Zoest, T., Ertmer, W., Schleich, W. P., Rasel, E. M.
Atom interferometers covering macroscopic domains of space-time are a spectacular manifestation of the wave nature of matter. Due to their unique coherence properties, Bose-Einstein condensates are ideal sources for an atom interferometer in extended
Externí odkaz:
http://arxiv.org/abs/1301.5883
Autor:
Aharonian, F., Arshakian, T. G., Allen, B., Banerjee, R., Beck, R., Becker, W., Bomans, D. J., Breitschwerdt, D., Brüggen, M., Brunthaler, A., Catinella, B., Champion, D., Ciardi, B., Crocker, R., de Avillez, M. A., Dettmar, R. J., Engels, D., Enßlin, T., Enke, H., Fieseler, T., Gizon, L., Hackmann, E., Hartmann, B., Henkel, C., Hoeft, M., Iapichino, L., Innes, D., James, C., Jasche, J., Jones, D., Kagramanova, V., Kauffmann, G., Keane, E., Kerp, J., Klöckner, H. -R., Kokkotas, K., Kramer, M., Krause, M., Krupp, N., Kunz, J., Lämmerzahl, C., Lee, K. J., List, M., Liu, K., Lobanov, A., Mann, G., Merloni, A., Middelberg, E., Niemeyer, J., Noutsos, A., Perlick, V., Reich, W., Richter, P., Roy, A., Saintonge, A., Schäfer, G., Schaffner-Bielich, J., Schinnerer, E., Schleicher, D., Schneider, P., Schwarz, D. J., Sedrakian, A., Sesana, A., Smolčić, V., Solanki, S., Tuffs, R., Vetter, M., Weber, E., Weller, J., Wex, N., Wucknitz, O., Zwaan, M.
The Square Kilometre Array (SKA) is the most ambitious radio telescope ever planned. With a collecting area of about a square kilometre, the SKA will be far superior in sensitivity and observing speed to all current radio facilities. The scientific c
Externí odkaz:
http://arxiv.org/abs/1301.4124
Autor:
Castellanos, E., Laemmerzahl, C.
Publikováno v:
Modern Physics Letters A, Vol. 27, No. 31 (2012) 1250181
We analyze the effects caused by an anomalous single-particle dispersion relation suggested in several quantum-gravity models, upon the thermodynamics of a Bose-Einstein condensate trapped in a generic 3-dimensional power-law potential. We prove that
Externí odkaz:
http://arxiv.org/abs/1202.3801