Zobrazeno 1 - 10
of 867
pro vyhledávání: '"MENDONÇA, J. A."'
A rigorous treatment of light-matter interactions typically requires an interacting quantum field theory. However, many practical results are often derived using classical or semiclassical approximations, which are valid only when quantum-field fluct
Externí odkaz:
http://arxiv.org/abs/2410.05917
Autor:
Diamond-Lowe, H., King, G. W., Youngblood, A., Brown, A., Howard, W. S., Winters, J. G., Wilson, D. J., France, K., Mendonça, J. M., Buchhave, L. A., Corrales, L., Kreidberg, L., Medina, A. A., Bean, J. L., Berta-Thompson, Z. K., Evans-Soma, T. M., Froning, C., Duvvuri, G. M., Kempton, E. M. -R., Miguel, Y., Pineda, J. S., Schneider, C.
Publikováno v:
A&A 689, A48 (2024)
The high-energy radiative output, from the X-ray to the ultraviolet, of exoplanet host stars drives photochemical reactions and mass loss in the upper regions of planetary atmospheres. In order to place constraints on the atmospheric properties of th
Externí odkaz:
http://arxiv.org/abs/2407.00165
The quantum diffusion of a vortex in a two-component quantum fluid of light is investigated. In these systems, the Kerr nonlinearity promotes interactions between the photons, displaying features that are analogue of a Bose-Einstein condensates. Quan
Externí odkaz:
http://arxiv.org/abs/2312.06319
We study the dispersion properties of electron plasma waves, or plasmons, which can be excited in quantum plasmas in the nonlinear regime. In order to describe nonlinear electron response to finite amplitude plasmons, we apply the Volkov approach to
Externí odkaz:
http://arxiv.org/abs/2310.08544
Bose--Einstein condensation of a finite number of photons propagating inside a plasma-filled microcavity is investigated. The nonzero chemical potential is provided by the electrons, which induces a finite photon mass allowing condensation to occur.
Externí odkaz:
http://arxiv.org/abs/2211.15857
Autor:
Giampaoli, R., Figueiredo, J. L., Rodrigues, J. D., Rodrigues, J. A., Terças, H., Mendonça, J. T.
The statistical properties of physical systems in thermal equilibrium are blatantly different from their far-from-equilibrium counterparts. In the latter, fluctuations often dominate the dynamics and might cluster in ordered patterns in the form of d
Externí odkaz:
http://arxiv.org/abs/2211.01485
Autor:
Falcão, P. R. N., Mendonça, J. P., Buarque, A. R. C., Dias, W. S., Almeida, G. M. A., Lyra, M. L.
The dynamics of a three-state quantum walk with amplitude-dependent phase shifts is investigated. We consider two representative inputs whose linear evolution is known to display either full dispersion of the wave packet or intrinsic localization on
Externí odkaz:
http://arxiv.org/abs/2207.03953
Autor:
Stangret, M., Pallé, E., Casasayas-Barris, N., Oshagh, M., Bello-Arufe, A., Luque, R., Nascimbeni, V., Yan, F., Orell-Miquel, J., Sicilia, D., Malavolta, L., Addison, B. C., Buchhave, L. A., Bonomo, A. S., Borsa, F., Cabot, S. H. C., Cecconi, M., Fischer, D. A., Harutyunyan, A., Mendonça, J. M., Nowak, G., Parviainen, H., Sozzetti, A., Tronsgaard, R.
Publikováno v:
A&A 654, A73 (2021)
Ultra-hot Jupiters are defined as giant planets with equilibrium temperatures larger than 2000 K. Most of them are found orbiting bright A-F type stars, making them extremely suitable objects to study their atmospheres using high-resolution spectrosc
Externí odkaz:
http://arxiv.org/abs/2104.12414
Soliton hydrodynamics is an appealing tool to describe strong turbulence in low-dimensional systems. Strong turbulence in quasi-one dimensional spuerfluids, such as Bose-Einstein condensates, involves the dynamics of dark solitons and, therefore, the
Externí odkaz:
http://arxiv.org/abs/2011.11556
Autor:
Khan, M. Miskeen, Terças, H., Mendonça, J. T., Wehr, J., Charalambous, C., Lewenstein, M., Garcia-March, M. A.
Publikováno v:
Phys. Rev. A 103, 023303 (2021)
We study the quantum motion of an impurity atom immersed in a Bose Einstein condensate in arbitrary dimension. The Bogoliubov excitations of the Bose Einstein condensate act as a bosonic bath for the impurity. We present a detailed derivation of the
Externí odkaz:
http://arxiv.org/abs/2007.04925