3 research outputs found

    Time-invariant entanglement and sudden death of nonlocality

    Get PDF
    We investigate both theoretically and experimentally the dynamics of entanglement and nonlocality for two qubits immersed in a global pure dephasing environment. We demonstrate the existence of a class of states for which entanglement is forever frozen during the dynamics, even if the state of the system does evolve. At the same time nonlocal correlations, quantified by the violation of the Clauser-Horne-Shimony-Holt (CHSH) inequality, either undergo sudden death or are trapped during the dynamics.</p

    CaracterĂ­sticas da fonetografia em indivĂ­duos com equilĂ­brio dentofacial pĂłs-muda vocal Characteristics of phonetography on subjects with dentofacial balance in vocal post mutation

    No full text
    OBJETIVO: caracterizar, por meio de fonetografia, o perfil da extensĂŁo vocal em indivĂ­duos sem alteraçÔes pĂłs-muda vocal e equilĂ­brio dentofacial. MÉTODO: participaram deste estudo 15 homens com idades entre 14 e 35 anos com pĂłs-muda vocal. Eles responderam a um questionĂĄrio especĂ­fico, e tambĂ©m foram submetidos a uma avaliação antropomĂ©trica da face, a avaliação dento-oclusal, o exame fonetografia e tambĂ©m a uma anĂĄlise da frequĂȘncia fundamental habitual da voz. RESULTADOS: frequĂȘncia fundamental mĂ­nima: 89Hz ± 3Hz ou 29st ±14st; FrequĂȘncia fundamental mĂĄxima: 665Hz±179Hz ou 63st±5st; ExtensĂŁo Vocal: 34st±6st; Intensidade mĂ­nima: 66 dB ± 3dB; Intensidade mĂĄxima: 114dB ± 5dB; ExtensĂŁo DinĂąmica MĂĄxima: 42dB ± 4dB, Área do Fonetograma: 936,4 dB.st ± 258,8 dB.st ou 42,1 cmÂČ Â± 11,6 cmÂČ; FrequĂȘncia Fundamental Habitual para a vogal "a": 111,26 Hz ± 15,24 Hz. CONCLUSÃO: apesar de os estudos nacionais e internacionais apresentados neste trabalho nĂŁo considerarem a condição dentofacial dos indivĂ­duos, os resultados foram semelhantes.<br>PURPOSE: to characterize, by means of phonetography, the profile of voice extension in individuals with post changes, dentofacial balanced voice. METHOD: fifteen male individuals participated in this study, in vocal postmutation, aged between 14 and 35 years old. They answered a specific self-response questionnaire, and they were also submitted to an anthropometric assessment of the face, dento-occlusal evaluation, phonetography examination and to an analysis of the usual fundamental frequency of the voice. RESULTS: minimum Fundamental Frequency: =89Hz±3Hz or =29st±14st, Maximum Fundamental Frequency: X=665Hz±179Hz or X=63st±5, Voice Extension: X=34st±6st, Minimum Intensity: X=66dB±3dB, Maximum Intensity: X=114dB±5dB, Maximum Dynamic Extension: X=42dB±4dB, Phonetogram Area: X=936,4dB.st±258,8dB.st or X=42,1cmÂȱ11,6cmÂČ, Usual Fundamental Frequency of the "a" vowel: X=111,26Hz±15,24Hz. CONCLUSION: although national and international studies presented in this work do not consider the dentofacial condition of the subjects, the results were very similar
    corecore