Výsledky vyhledávání - "Reginaldo de Jesus Napolitano"

Akademický článek

Protecting operations on qudits from noise by continuous dynamical decoupling

Autor: Reginaldo de Jesus Napolitano, Felipe Fernandes Fanchini, Adonai Hilario da Silva, Bruno Bellomo

Publikováno v: Physical Review Research, Vol 3, Iss 1, p 013235 (2021)

We develop a procedure of generalized continuous dynamical decoupling (GCDD) for an ensemble of d-level systems (qudits), allowing one to protect the action of an arbitrary multiqudit gate from general noise. We first present our GCDD procedure for t

Externí odkaz: https://doaj.org/article/af379c35216e44388599541dc4c4e989

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Protecting operations on qudits from noise by continuous dynamical decoupling

Autor: Adonai Hilario da Silva, Reginaldo de Jesus Napolitano, Felipe F. Fanchini, Bruno Bellomo

Publikováno v: Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Scopus

Made available in DSpace on 2021-06-26T04:30:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-03-12 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) National Institute of Science and Technology for Quantum Information Consel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e30152c056d1ba87243a6a3cf9fe420
https://doi.org/10.1103/physrevresearch.3.013235

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Phase-retrieval from Bohm's equations

Autor: M. H. Y. Moussa, Reginaldo de Jesus Napolitano, Carlos Alexandre Brasil

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

We present an analytic method, based on the Bohmian equations for quantum mechanics, for approaching the phase-retrieval problem in the following formulation: By knowing the probability density $\left\vert \psi\left(\overrightarrow{r},t\right)\right\

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afc1e6c0766966e59738a3d6d7045443

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Weak values in collision theory

Autor: Leonardo Andreta de Castro, Reginaldo de Jesus Napolitano, Carlos Alexandre Brasil

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Weak measurements have an increasing number of applications in contemporary quantum mechanics. They were originally described as a weak interaction that slightly entangled the translational degrees of freedom of a particle to its spin, yielding surpr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3428b2efa7b242927ab5832077a6e4b

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How Much Time Does a Measurement Take?

Autor: Leonardo Andreta de Castro, Carlos Alexandre Brasil, Reginaldo de Jesus Napolitano

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

We consider the problem of measurement using the Lindblad equation, which allows the introduction of time in the interaction between the measured system and the measurement apparatus. We use analytic results, valid for weak system-environment couplin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::954edd83752124180f045039cfafad68
https://doi.org/10.1007/s10701-013-9707-7

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Órbitas elíticas na quantização do espaço de fase

Autor: Carlos Alexandre Brasil, Leonardo Andreta de Castro, Reginaldo de Jesus Napolitano

Publikováno v: Revista Brasileira de Ensino de Física, Volume: 38, Issue: 3, Article number: e3318, Published: 20 JUN 2016
Revista Brasileira de Ensino de Física v.38 n.3 2016
Revista Brasileira de Ensino de Física
Sociedade Brasileira de Física (SBF)
instacron:SBF
Revista Brasileira de Ensino de Física, Vol 38, Iss 3

The energy levels of hydrogen-like atoms are obtained from the phase-space quantization, one of the pillars of the old quantum theory, by three different methods - (i) direct integration, (ii) Sommerfeld's original method, and (iii) complex integrati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ed1ae201d8fde3784cb55613a78a9fc
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172016000300418&lng=en&tlng=en

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Universality of sudden death of entanglement

Autor: Reginaldo de Jesus Napolitano, Paulo E. M. F. Mendonca, Felipe F. Fanchini

Publikováno v: Quantum Information and Computation. 11:677-694

We present a constructive argument to demonstrate the universality of the sudden death of entanglement in the case of two non-interacting qubits, each of which generically coupled to independent Markovian environments at zero temperature. Conditions

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5e6d3d18b62a379eba6e436dacd1062
https://doi.org/10.26421/qic11.7-8-9

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Simulação do processo de desaceleração de átomos pela técnica de ajustamento Zeeman

Autor: Reginaldo de Jesus Napolitano

Publikováno v: Biblioteca Digital de Teses e Dissertações da USP
Universidade de São Paulo (USP)
instacron:USP

O principal objetivo deste trabalho é, adotado uma abordagem centrada na simulação numérica, entender a desaceleração a laser de um feixe atômico por meio da conhecida técnica de ajuste Zeeman. Nossos cálculos numéricos são capazes de repr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1aa21ffe7a09cf3d7c86e7063ec4e74
https://doi.org/10.11606/d.54.1990.tde-21052007-102015

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Protecting theSWAPoperation from general and residual errors by continuous dynamical decoupling

Autor: Felipe F. Fanchini, Barış Çakmak, Amir Ordacgi Caldeira, Reginaldo de Jesus Napolitano

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP

We study the occurrence of errors in a continuously decoupled two-qubit state during a $\sqrt{SWAP}$ quantum operation under decoherence. We consider a realization of this quantum gate based on the Heisenberg exchange interaction, which alone suffice

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6221447124f6d3b2d3a31250d3b5c2e1
https://doi.org/10.1103/physreva.91.042325

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Different ground-state potentials for the same ultracold-collision outcome

Autor: A.L.M. Zanelatto, Reginaldo de Jesus Napolitano, Evandro Marcos Saidel Ribeiro

Publikováno v: Chemical Physics Letters. 399:135-139

For ultracold strontium atoms colliding at 1 μK, we search for and determine a class of continuous deformations of the ground-state potential curve, under which scattering results are invariant. We search for these potential transformations by keepi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a7c98c425d4ca93261a975e26677f02
https://doi.org/10.1016/j.cplett.2004.09.149

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