Zobrazeno 1 - 10
of 14
pro vyhledávání: '"L. B. Pires"'
Autor:
L. B. Pires, D. S. Ether, B. Spreng, G. R. S. Araújo, R. S. Decca, R. S. Dutra, M. Borges, F. S. S. Rosa, G.-L. Ingold, M. J. B. Moura, S. Frases, B. Pontes, H. M. Nussenzveig, S. Reynaud, N. B. Viana, P. A. Maia Neto
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p 033037 (2021)
We measure the colloidal interaction between two silica microspheres in an aqueous solution in the distance range from 0.2 to 0.5μm with the help of optical tweezers. When employing a sample with a low salt concentration, the resulting interaction i
Externí odkaz:
https://doaj.org/article/e80d6a7be0a44f4ca4ce93569e412496
Autor:
Bruno Pontes, G. R. S. Araújo, D. S. Ether, P. A. Maia Neto, Susana Frases, Serge Reynaud, Nathan B. Viana, Ricardo S. Decca, L. B. Pires, Felipe S. S. Rosa, Gert-Ludwig Ingold, M. J. B. Moura, R. S. Dutra, H. M. Nussenzveig, M. Borges, B. Spreng
Publikováno v:
Physical Review Research
Physical Review Research, American Physical Society, 2021, 3 (3), pp.033037. ⟨10.1103/PhysRevResearch.3.033037⟩
Physical Review Research, American Physical Society, 2021, 3 (3), pp.033037. ⟨10.1103/PhysRevResearch.3.033037⟩
We measure the colloidal interaction between two silica microspheres in aqueous solution in the distance range from $0.2\,\mu$m to $0.5\,\mu$m with the help of optical tweezers. When employing a sample with a low salt concentration, the resulting int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e335be43efb75b03665d0566531be369
https://hal.archives-ouvertes.fr/hal-03283296
https://hal.archives-ouvertes.fr/hal-03283296
Autor:
P. A. Maia Neto, R. S. Dutra, Bruno Pontes, L. B. Pires, Glauber R. de S. Araújo, Fran Gómez, H. M. Nussenzveig, Nathan B. Viana
Publikováno v:
Physical Review Applied. 15
We derive an explicit partial-wave (Mie) series for the image of a dielectric microsphere collected by a typical infinity-corrected microscope. We model the propagation of the illumination and scattered vector fields through the optical components of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5459745748353e552ffcbbc9a82d899
https://doi.org/10.1103/physrevapplied.15.064012
https://doi.org/10.1103/physrevapplied.15.064012
Publikováno v:
J.Phys.B
J.Phys.B, 2021, 54 (20), pp.205401. ⟨10.1088/1361-6455/ac36ba⟩
J.Phys.B, 2021, 54 (20), pp.205401. ⟨10.1088/1361-6455/ac36ba⟩
In this work, we provide an answer to the question: how sudden or adiabatic is a change in the frequency of a quantum harmonic oscillator (HO)? To do this, we investigate the behavior of a HO, initially in its fundamental state, by making a frequency
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03ae05c5762e94d6a69dd9fcbbf5a61f
http://arxiv.org/abs/2010.08081
http://arxiv.org/abs/2010.08081
We consider a harmonic oscillator (HO) with a time dependent frequency which undergoes two successive abrupt changes. By assumption, the HO starts in its fundamental state with frequency \omega_{0}, then, at t = 0, its frequency suddenly increases to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa3d0c4d40e217d40251a3478d0954e3
Autor:
L. B. Pires, Antoine Canaguier-Durand, Anna B. Moraes, Serge Reynaud, R. Guérout, Astrid Lambrecht, Paulo A. Maia Neto, Felipe S. S. Rosa
Publikováno v:
The European Physical Journal D : Atomic, molecular, optical and plasma physics
The European Physical Journal D : Atomic, molecular, optical and plasma physics, EDP Sciences, 2019, 73, pp.178. ⟨10.1140/epjd/e2019-100225-8⟩
The European Physical Journal D : Atomic, molecular, optical and plasma physics, EDP Sciences, 2019, 73, pp.178. ⟨10.1140/epjd/e2019-100225-8⟩
We apply the scattering approach to the Casimir interaction between two dielectric half-spaces separated by an electrolyte solution. We take the nonlocal electromagnetic response of the intervening medium into account, which results from the presence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02dcabdaaa50808b83dc1ef684955370
http://arxiv.org/abs/1906.06395
http://arxiv.org/abs/1906.06395
We show that the optical force field in optical tweezers with elliptically polarized beams has the opposite handedness for a wide range of particle sizes and for the most common configurations. Our method is based on the direct observation of the par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1d7482af4962356199d10d88a68cf85
http://arxiv.org/abs/1901.09370
http://arxiv.org/abs/1901.09370
Autor:
C. A. D. Zarro, Andreson L. C. Rego, Carlos Farina, D. Szilard, L. B. Pires, Daniel M. Tibaduiza
Using operator ordering techniques based on BCH-like relations of the su(1,1) Lie algebra and a time-splitting approach,we present an alternative method of solving the dynamics of a time-dependent quantum harmonic oscillator for any initial state. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0e399c7eb7fdc863657fd9db9dda780
Publikováno v:
Modern Physics Letters A. 35:2040002
Many precision experiments have been done in the Casimir regime and in short range gravity when the separation between the interacting bodies is in the sub-micron range. Experimental complexity is minimized when one of the bodies is a sphere and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c536a548e73a065117b302260346949e
https://doi.org/10.1142/s0217732320400027
https://doi.org/10.1142/s0217732320400027
Autor:
L. B. Pires, P. A. Maia Neto, D. M. Tibaduiza, D. S. Ether, Ricardo S. Decca, Felipe S. S. Rosa
In this paper we propose a protocol to suppress double-layer forces between two microspheres immersed in a dielectric medium, being one microsphere metallic at a controlled potential {\psi}M and the other a charged one either metallic or dielectric.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::258147d09f75ceabf9641e77c080ffb9
http://arxiv.org/abs/1712.00438
http://arxiv.org/abs/1712.00438