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pro vyhledávání: '"Berera, A."'
Turbulence has associated chaotic features. In the past couple of decades there has been growing interest in the study of these features as an alternative means of understanding turbulent systems. Our own input to this effort has been in contributing
Externí odkaz:
http://arxiv.org/abs/2406.09885
Autor:
Vilela, G. L. S., Stephen, G. M., Gratens, X., Galgano, G. D., Hou, Yasen, Takamura, Y., Heiman, D., Henriques, A., Berera, G., Moodera, J. S.
Rare-earth nitrides, such as gadolinium nitride (GdN), have great potential for spintronic devices due to their unique magnetic and electronic properties. GdN has a large magnetic moment, low coercitivity and strong spin polarization suitable for spi
Externí odkaz:
http://arxiv.org/abs/2309.06666
Publikováno v:
Phys. Rev. D 108, 043033 (2023)
Stimulated emission is shown to be robust in stars. Through Bose enhancement this produces quantum states of aligned, monochromatic photons similar to a laser. The probability of creating such states is computed. We show that from the solar corona su
Externí odkaz:
http://arxiv.org/abs/2306.06676
Autor:
Berera, Arjun
Publikováno v:
Universe 2023, 9(6), 272
Warm inflation has normalized two ideas in cosmology, that in the early universe the initial primordial density perturbations generally could be of classical rather than quantum origin and that during inflation, particle production from interactions
Externí odkaz:
http://arxiv.org/abs/2305.10879
Publikováno v:
Astrobiology 2023, 469 - 475
The purpose of this paper is to re-open from a practical perspective the question of the extent in altitude of the Earth's biosphere. We make a number of different suggestions for how searches for biological material could be conducted in the mesosph
Externí odkaz:
http://arxiv.org/abs/2302.09280
It is well known that helical magnetohydrodynamic (MHD) turbulence exhibits an inverse transfer of magnetic energy from small to large scales, which is related to the approximate conservation of magnetic helicity. Recently, several numerical investig
Externí odkaz:
http://arxiv.org/abs/2212.02418
Autor:
Berera, Siddharth, Gómez-Colunga, Andrés, Lakerdas-Gayle, Joey, López, John, Matin, Mauditra, Roebuck, Daniel, Rowland, Eric, Scully, Noam, Whidden, Juliet
Publikováno v:
The Electronic Journal of Combinatorics 30 (2023) #P3.11 (43 pages)
The lexicographically least square-free infinite word on the alphabet of non-negative integers with a given prefix $p$ is denoted $L(p)$. When $p$ is the empty word, this word was shown by Guay-Paquet and Shallit to be the ruler sequence. For other p
Externí odkaz:
http://arxiv.org/abs/2210.00508
Perturbative quantum corrections to primordial power spectra are important for testing the robustness and the regime of validity of inflation as an effective field theory. Although this has been done extensively for the density power spectrum (and, t
Externí odkaz:
http://arxiv.org/abs/2206.05797
The possibility of achieving quantum communication using photons across interstellar distances is examined. For this, different factors are considered that could induce decoherence of photons, including the gravitational field of astrophysical bodies
Externí odkaz:
http://arxiv.org/abs/2205.11816
Autor:
Berera, Arjun, Brahma, Suddhasattwa, Brandenberger, Robert, Calderón-Figueroa, Jaime, Heavens, Alan
Publikováno v:
Phys. Rev. D 104, 063519 (2021)
We identify potential sources of decoherence for $U(1)$ gauge bosons from a cosmological standpoint. Besides interactions with different species in the cosmological medium, we also consider effects due to the expansion of the Universe, which can prod
Externí odkaz:
http://arxiv.org/abs/2107.06914