A model for structural defects in nanomagnets

A model for describing structural pointlike defects in nanoscaled ferromagnetic materials is presented. Its details are explicitly developed whenever interacting with a vortex-like state comprised in a thin nanodisk. Among others, our model yields results for the vortex equilibrium position under the influence of several defects along with an external magnetic field in good qualitative agreement with experiments. We also discuss how such defects may affect the vortex motion, like its gyrotropic oscillation and dynamical polarization reversal.Comment: 8 pages, resubmitted to Journal of Applied Physic

Stabilizer Quantum Error Correction with Qubus Computation

In this paper we investigate stabilizer quantum error correction codes using controlled phase rotations of strong coherent probe states. We explicitly describe two methods to measure the Pauli operators which generate the stabilizer group of a quantum code. First, we show how to measure a Pauli operator acting on physical qubits using a single coherent state with large average photon number, displacement operations, and photon detection. Second, we show how to measure the stabilizer operators fault-tolerantly by the deterministic preparation of coherent cat states along with one-bit teleportations between a qubit-like encoding of coherent states and physical qubits.Comment: 4 pages, 5 figure

Intensidade dos danos do nematoide das lesões radiculares na soja, em função da variabilidade espacial de atributos químicos do solo.

Objetivo deste trabalho: entender melhor o comportamento da espécie em relação à variabilidade de atributos químicos do solo, foi estabelecido, na safra 2010/2011, um estudo de campo na região médio norte do Mato Grosso

Germinação de sementes e estabelecimento de plântulas de cucurbitácias.

Sementes de diferentes lotes e cultivares de melancia, pepino, melão e abóbora foram submetidas aos testes de germinação, emergência em bandejas em condições de casa de vegetação e emergência em campo, em Brasília-DF, com o objetivo de comparar os diferentes testes e garantir melhores resultados como maior estabelecimento de plântulas e uniformidade de produção no campo.CD-ROM. Suplemento. Trabalho apresentado no 51. Congresso Brasileiro de Olericultura, Viçosa, MG

Qualidade fisiológica da semente e estabelecimento de plantas de hortaliças no campo.

Palestra 17

Counting RNAseq reads: which way is better?

In this work we show the variation of results we?ve found while working with ~1 billion Illumina reads from drought tolerant Sorghum bicolor genotype in the presence and absence of the stress and compared results found for key genes already characterized.Pôster N101

Mucilagem fenada de sisal com uréia pecuária para alimentação de ruminantes.

bitstream/CNPA/19929/1/FOLDER_MUCILAGEM.pdfFolder

Xe films on a decagonal Al-Ni-Co quasicrystal surface

The grand canonical Monte Carlo method is employed to study the adsorption of Xe on a quasicrystalline Al-Ni-Co surface. The calculation uses a semiempirical gas-surface interaction, based on conventional combining rules and the usual Lennard-Jones Xe-Xe interaction. The resulting adsorption isotherms and calculated structures are consistent with the results of LEED experimental data. In this paper we focus on five features not discussed earlier (Phys. Rev. Lett. 95, 136104 (2005)): the range of the average density of the adsorbate, the order of the transition, the orientational degeneracy of the ground state, the isosteric heat of adsorption of the system, and the effect of the vertical cell dimension.Comment: 6 pages, 5 pic