Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Ismael L Paiva"'
Publikováno v:
New Journal of Physics, Vol 25, Iss 5, p 053017 (2023)
The interaction between a quantum charge and a dynamic source of a magnetic field is considered in the Aharonov–Bohm (AB) scenario. It is shown that, in weak interactions with a post-selection of the source, the effective vector potential is, gener
Externí odkaz:
https://doaj.org/article/b2189fcf59014390879d0370d3c61a95
Autor:
Otavio A. D. Molitor, André H. A. Malavazi, Roberto Dobal Baldijão, Alexandre C. Orthey, Ismael L. Paiva, Pedro R. Dieguez
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-11 (2024)
Abstract The superposition of causal orders shows promise in various quantum technologies. However, the fragility of quantum systems arising from environmental interactions, leading to dissipative behavior and irreversibility, demands a deeper unders
Externí odkaz:
https://doaj.org/article/5c15684aea934b0fac717eeb94b4ee46
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-7 (2022)
Relativistic theories brought the operational notion of time to the center stage of physics. Here, the authors show that effective unitary dynamics is not guaranteed if this notion is extended to quantum mechanics when relativistic corrections are co
Externí odkaz:
https://doaj.org/article/bd2f4ac4da0d4e61bd9307d8e776e161
Publikováno v:
Quantum, Vol 6, p 683 (2022)
Uncertainty relations play a crucial role in quantum mechanics. Well-defined methods exist for the derivation of such uncertainties for pairs of observables. Other approaches also allow the formulation of time-energy uncertainty relations, even thoug
Externí odkaz:
https://doaj.org/article/e8974d05399942318520be52b30593a7
Publikováno v:
Physical Review A. 107
The Aharonov-Bohm effect is a fundamental topological phenomenon with a wide range of applications. It consists of a charge encircling a region with a magnetic flux in a superposition of wave packets having their relative phase affected by the flux.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f6ea316a5841df95cb0862e20253569
https://doi.org/10.1103/physreva.107.032213
https://doi.org/10.1103/physreva.107.032213
Publikováno v:
Israel Journal of Mathematics. 236:207-246
We develop some aspects of the theory of hyperholomorphic functions whose values are taken in a Banach algebra over a field -- assumed to be the real or the complex numbers -- and which contains the field. Notably, we consider Fueter expansions, Glea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2fa01e82dd52c2eb576cf7f9d9b7c33
https://doi.org/10.1007/s11856-020-1970-7
https://doi.org/10.1007/s11856-020-1970-7
Uncertainty relations play a crucial role in quantum mechanics. Well-defined methods exist for the derivation of such uncertainties for pairs of observables. Other approaches also allow the formulation of time-energy uncertainty relations, even thoug
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::921ee1a06e9b45280e4a482f46180a7e
http://arxiv.org/abs/2106.00523
http://arxiv.org/abs/2106.00523
Autor:
Ismael L. Paiva
This is a dissertation in two parts. In the first one, the Aharonov-Bohm effect is investigated. It is shown that solenoids (or flux lines) can be seen as barriers for quantum charges. In particular, a charge can be trapped in a sector of a long cavi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::116b7fd6db280e0a0504ff8657add821
https://doi.org/10.36837/chapman.000159
https://doi.org/10.36837/chapman.000159
It is shown that, in some cases, the effect of discrete distributions of flux lines in quantum mechanics can be associated with the effect of continuous distributions of magnetic fields with special symmetries. In particular, flux lines with an arbit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b4f202973ca7f9080649fea5da3dcb3
Autor:
Daniel Alpay, Ismael L. Paiva
We define an extension of operator-valued positive definite functions from the real or complex setting to topological algebras, and describe their associated reproducing kernel spaces. The case of entire functions is of special interest, and we give
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11902ba4b702002e0fb4e8a507879b79