Zobrazeno 1 - 10
of 251
pro vyhledávání: '"Ramos J G"'
Autor:
Bakke, K., Ramos, J. G. G. S.
Publikováno v:
EPL 137, 54002 (2022)
We obtain the analytical solutions to the Schr\"odinger equation for the attractive inverse-square potential in an induced electric dipole moment system under the influence of the harmonic oscillator. We show that bound states can exist when the elec
Externí odkaz:
http://arxiv.org/abs/2402.04293
Autor:
Bakke, K., Ramos, J. G. G. S.
Publikováno v:
Few-Body Syst, 65, 5 (2024)
We examine the spatial distribution of electric charges within an extended, non-conductive cylinder featuring an inner radius denoted as $r_{0}$. Our investigation unveils the emergence of a distinct modified attractive-inverse square potential, aris
Externí odkaz:
http://arxiv.org/abs/2402.04294
Publikováno v:
MATEC Web of Conferences, Vol 272, p 01032 (2019)
Metropolitan Manila has become the world’s ‘worst’ in terms of its traffic scenarios and such crisis left an impact to the commuters which has led to the emergence of the modern Filipino commuting culture. The ethnography utilized covert partic
Externí odkaz:
https://doaj.org/article/bba5b628a4b14d3d86551a686a2ef559
Publikováno v:
Phys. Rev. B 102, 11510 (2020)
We investigate the universal properties of quantum transport in graphene nanowires that engender subtle universal conductance fluctuations. We present results for three of the main microscopic models that describe the sublattice of graphene and gener
Externí odkaz:
http://arxiv.org/abs/2009.02163
Autor:
Santana, F. A. F., da Silva, J. M., Vasconcelos, T. C., Ramos, J. G. G. S., Barbosa, A. L. R.
Publikováno v:
Phys. Rev. B 102, 041107(R) (2020)
We investigate a disorderly mesoscopic device that supports spin-orbit interaction. The systemis connected to four semi-infinite leads embedded in the Landauer-Buttiker setup for quantumtransport and, according to our analysis, exhibits spin Hall ang
Externí odkaz:
http://arxiv.org/abs/2006.14574
Autor:
da Silva, A. F. M. Rodrigues, Barros, M. S. M., Júnior, A. J. Nascimento, Barbosa, A. L. R., Ramos, J. G. G. S.
We investigate the Schr\"odinger (non-relativistic) and the Dirac (``relativistic") billiards in the universal regime. The study is based on a non-ideal quantum resonant scattering numerical simulation. We show universal results that reveal anomalous
Externí odkaz:
http://arxiv.org/abs/1904.00855
We present a complete numerical calculation and an experimental data analysis of the universal conductance fluctuations in quasi-one-dimension nanowires. The conductance peak density model, introduced in nanodevice research on [Phys. Rev. Lett. 107,
Externí odkaz:
http://arxiv.org/abs/1809.08466
Autor:
Hussein, M. S., Ramos, J. G. G. S.
Publikováno v:
AIP Conf. Proc. 1912, 020007-1 - 020007-9 (2017)
We discuss the phenomenon of universal fluctuations in mesoscopic systems and nuclei. For this purpose we use Random Matrix Theory (RMT). The statistical $S$-matrix is used to obtain the physical observables in the case of Quantum Dots, both the Schr
Externí odkaz:
http://arxiv.org/abs/1805.10356
We investigate the resonant regime of a mesoscopic cavity made of graphene or a doped beam splitter. Using Non-Hermitian Quantum Mechanics, we consider the Bender-Boettcher assumption that a system must obey parity and time reversal symmetry. Therefo
Externí odkaz:
http://arxiv.org/abs/1805.09117
Publikováno v:
Journal of Applied Physics 123, 034304 (2018)
We investigate the spin-to-charge conversion emerging from a mesoscopic device connected to multiple terminals. We obtain analytical expressions to the characteristic coefficient of spin-to-charge conversion which are applied in two kinds of ballisti
Externí odkaz:
http://arxiv.org/abs/1712.04811