Zobrazeno 1 - 10
of 378
pro vyhledávání: '"Reis, D. A. P."'
Autor:
Claveria, P. San Miguel, Storey, D., Cao, G. J., Di Piazza, A., Ekerfelt, H., Gessner, S., Gerstmayr, E., Grismayer, T., Hogan, M., Joshi, C., Keitel, C. H., Knetsch, A., Litos, M., Matheron, A., Marsh, K., Meuren, S., O'Shea, B., Reis, D. A., Tamburini, M., Vranic, M., Wang, J., Zakharova, V., Zhang, C., Corde, S.
The upgraded Facility for Advanced Accelerator Experimental Tests (FACET-II) at SLAC National Accelerator Laboratory has been designed to deliver ultra-relativistic electron and positron beams with unprecedented parameters, especially in terms of hig
Externí odkaz:
http://arxiv.org/abs/2310.05535
Autor:
Krapivin, Viktor, Gu, Mingqiang, Hickox-Young, D., Teitelbaum, S. W., Huang, Y., de la Peña, G., Zhu, D., Sirica, N., Lee, M. -C., Prasankumar, R. P., Maznev, A., Nelson, K. A., Chollet, M., Rondinelli, James M., Reis, D. A., Trigo, M.
Publikováno v:
Phys. Rev. Lett. 129, 127601 (2022)
We use an x-ray free-electron laser to study the ultrafast lattice dynamics following above band-gap photoexcitation of the incipient ferroelectric potassium-tantalate, \kto. % We use ultrafast near-UV (central wavelength 266\,nm and 50 fs pulse dura
Externí odkaz:
http://arxiv.org/abs/2201.10769
Autor:
Reis, D. M., de Carvalho, C. A. A.
We compute deviations from ideal gas behavior of the pressure, density, and Bose-Einstein condensation temperature of a relativistic gas of charged scalar bosons caused by the current-current interaction induced by electromagnetic quantum fluctuation
Externí odkaz:
http://arxiv.org/abs/2110.03488
Autor:
Jiang, M. P., Trigo, M., Fahy, S., Hauber, A., Murray, É. D., Savić, I, Bray, C., Clark, J. N., Henighan, T., Kozina, M., Chollet, M., Glownia, J. M., Hoffmann, M. C., Zhu, D., Delaire, O., May, A. F., Sales, B. C., Lindenberg, A. M., Zalden, P., Sato, T., Merlin, R., Reis, D. A.
We report the observation of photo-induced plasmon-phonon coupled modes in the group IV-VI semiconductor PbTe using Fourier-transform inelastic X-ray scattering at the Linac Coherent Light Source (LCLS). We measure the near-zone-center dispersion of
Externí odkaz:
http://arxiv.org/abs/2109.01301
Autor:
Salgado, F. C., Cavanagh, N., Tamburini, M., Storey, D. W., Beyer, R., Bucksbaum, P. H., Chen, Z., Di Piazza, A., Gerstmayr, E., Harsh, Isele, E., Junghans, A. R., Keitel, C. H., Kuschel, S., Nielsen, C. F., Reis, D. A., Roedel, C., Sarri, G., Seidel, A., Schneider, C., Uggerhøj, U. I., Wulff, J., Yakimenko, V., Zepter, C., Meuren, S., Zepf, M.
Publikováno v:
New J. Phys. 24, 015002 (2021)
Measuring signatures of strong-field quantum electrodynamics (SF-QED) processes in an intense laser field is an experimental challenge: it requires detectors to be highly sensitive to single electrons and positrons in the presence of the typically ve
Externí odkaz:
http://arxiv.org/abs/2107.03697
Autor:
Lee, Min-Cheol, Sirica, N., Teitelbaum, S. W., Maznev, A., Pezeril, T., Tutchton, R., Krapivin, V., de la Pena, G. A., Huang, Y., Zhao, L. X., Chen, G. F., Xu, B., Yang, R., Shi, J., Zhu, J., Yarotski, D. A., Qiu, X. G., Nelson, K. A., Trigo, M., Reis, D. A., Prasankumar, R. P.
Publikováno v:
Phys. Rev. Lett. 128, 155301 (2022)
Using femtosecond time-resolved X-ray diffraction, we investigated optically excited coherent acoustic phonons in the Weyl semimetal TaAs. The low symmetry of the (112) surface probed in our experiment enables the simultaneous excitation of longitudi
Externí odkaz:
http://arxiv.org/abs/2011.07196
We investigate the dispersion of a classical electromagnetic field in a relativistic ideal gas of charged bosons using scalar quantum electrodynamics at finite temperature and charge density. We derive the effective electromagnetic responses and the
Externí odkaz:
http://arxiv.org/abs/2009.05408
Autor:
Vaskivskyi, O. Grånäs I., Wang, X., Thunström, P., Ghimire, S., Knut, R., Söderström, J., Kjellsson, L., Turenne, D., Engel, R. Y., Beye, M., Lu, J., Reid, A. H., Schlotter, W., Coslovich, G., Hoffmann, M., Kolesov, G., Schüßler-Langeheine, C., Styervoyedov, A., Tancogne-Dejean, N., Sentef, M. A., Reis, D. A., Rubio, A., Parkin, S. S. P., Karis, O., Nordgren, J., Rubensson, J. -E., Eriksson, O., Dürr, H. A.
A non-trivial balance between Coulomb repulsion and kinematic effects determines the electronic structure of correlated electron materials. The use electromagnetic fields strong enough to rival these native microscopic interactions allows us to study
Externí odkaz:
http://arxiv.org/abs/2008.11115
Autor:
Trigo, M., Giraldo-Gallo, P., Clark, J. N., Kozina, M. E., Henighan, T., Jiang, M. P., Chollet, M., Fisher, I. R., Glownia, J. M., Katayama, T., Kirchmann, P. S., Leuenberger, D., Liu, H., Reis, D. A., Shen, Z. X., Zhu, D.
Publikováno v:
Phys. Rev. B 103, 054109 (2021)
We study ultrafast x-ray diffraction on the charge density wave (CDW) of SmTe$_3$ using an x-ray free electron laser. The CDW peaks show that photoexcitation with near-infrared pump centered at 800 nm generates domain walls of the order parameter pro
Externí odkaz:
http://arxiv.org/abs/2006.08879
We show that a gas of relativistic electrons is a left-handed material at low frequencies by computing the effective electric permittivity and effective magnetic permeability that appear in Maxwell's equations in terms of the responses appearing in t
Externí odkaz:
http://arxiv.org/abs/2006.03129