Search Results - "UJEVIC, Sebastian"

Strong chaotification and robust chaos in the Duffing oscillator induced by two-frequency excitation by Gusso, André, Ujevic, Sebastian, Viana, Ricardo L.

“…In this work, we demonstrate numerically that two-frequency excitation is an effective method to produce chaotification over very large regions of the…”
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Properties of fermionic systems with the path-integral ground state method by Ujevic, Sebastian, Zampronio, Vinicius, de Abreu, Bruno R., Vitiello, Silvio A.

“…We investigate strongly correlated many-body systems composed of bosons and fermions with a fully quantum treatment using the path-integral ground state…”
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Enhanced complexity of chaos in micro/nanoelectromechanical beam resonators under two-frequency excitation by Gusso, André, Viana, Ricardo L., Ujevic, Sebastian

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Fingerprints of transverse and longitudinal coupling between induced open quantum dots in the longitudinal magnetoconductance through antidot lattices by Ujevic, Sebastian, Mendoza, Michel

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Partial pseudospin polarization, latticetronics and Fano resonances in quantum dots based in graphene ribbons: a conductance spectroscopy by López, Luis I.A., Champi, Ana, Ujevic, Sebastian, Mendoza, Michel

“…In this work we study, as a function of the height V and width L b of the potential barriers, the transport of Dirac quasi-particles through quantum dots in…”
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Exclusive sub-lattices for extended and localized states in graphene ribbons: their role in Klein tunneling, disorder and magnetic field effects by López, Luis I A, Ujevic, Sebastian, Mendoza, Michel

“…We report the existence of two sub-lattices in metallic graphene nanoribbons that present a decoupled behavior. Each sub-lattice, one for extended states (ES)…”
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Optimization of the polarized Klein tunneling currents in a sub-lattice: pseudo-spin filters and latticetronics in graphene ribbons by López, Luis I A, Yaro, Simeón Moisés, Champi, A, Ujevic, Sebastian, Mendoza, Michel

“…We found that with an increase of the potential barrier applied to metallic graphene ribbons, the Klein tunneling current decreases until it is totally…”
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Elastic tunneling identification through crossings, anti-crossings and splitting of states in the complex electronic current of systems based on mesoscopic molecules by López, Luis I. A., Mendoza, Michel, Ujevic, Sebastian

“…We have systematically studied the conductance σ ( E,B ) and the electronic current line shapes J ( V ex ) through complex mesoscopic molecules in an elastic…”
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Cyclotron enhancement of tunneling by Medvedeva, M. V., Larkin, I. A., Ujevic, Sebastian, Shchur, L. N., Ivlev, B. I.

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Interatomic potential for the condensed phases of helium atoms by Ujevic, Sebastian, Vitiello, S. A.

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Ab initio two-body potentials and the properties of condensed phases of helium atoms by UJEVIC, Sebastian, VITIELLO, S. A

“…A careful comparison of some properties of systems of helium atoms in the liquid and solid phases is performed for several ab initio two-body potentials from…”
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Fermi-edge singularity at tunneling and anisotropic magneto-tunneling in low-dimensional semiconductor structures by Larkin, Ivan A, Vdovin, E E, Khanin, Yu N, Ujevic, Sebastian, Henini, M

“…We consider many-body enhanced electron tunneling through an InAs quantum dot in a magnetic field applied perpendicular to the tunneling direction. The…”
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3D XY versus 3D LLL revisited in YBa 2Cu 3O 7− δ by Ujevic, Sebastian, da Silva, E.Z., Salem-Sugui, S.

“…We analyzed magnetization data from a YBa 2Cu 3O 7− δ sample with a sharp transition at T c = 92.3 K. Two models are discussed and compared. The XY model in…”
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Using Nanoresonators with Robust Chaos as HRNGs by Rodrigues, Lucas R, Dantas, W. G, Ujevic, Sebastian, Gusso, A

“…In this paper, we investigate theoretically the potential of a nanoelectromechanical suspended beam resonator excited by two-external frequencies as a hardware…”
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First-Principle Calculations of Multi-Channel Spin-Polarized Transport in Atomic-Size Barrier by Ujevic, Sebastian, Gómez, J. A., Larkin, Ivan A.

“…A multi-channel tunneling theory through a realistic hetero-junction barrier was developed using a mixed representation and studied within a few modes model…”
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3D XY versus 3D LLL revisited in YBa2Cu3O7-δ by UJEVIC, Sebastian, DA SILVA, E. Z, SALEM-SUGUI, S

“…We analyzed magnetization data from a YBa2Cu3O7-delta sample with a sharp transition at Tc=92.3K. Two models are discussed and compared. The XY model in three…”
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First-Principle Calculations of Multi-Channel Spin-Polarized Transport in Atomic-Size Barrier by UJEVIC, Sebastian, GOMEZ, J. A, LARKIN, Ivan A

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Kinetic energies of liquid and solid phases of $^4$He by Rugeles, E. J, Ujevic, Sebastian, Vitiello, S. A

“…Kinetic energies of a system of $^4$He are investigated at zero temperature. The multi-weight extension to the diffusion Monte Carlo method is used to…”
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Analysis of the contributions of three-body potentials in the equation of state of 4He by Ujevic, Sebastian, Vitiello, S. A

“…The effect of three-body interatomic contributions in the equation of state of 4He are investigated. A recent two-body potential together with the Cohen and…”
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