Nonlinear Spinor Fields in Bianchi type-VI_0 spacetime release_mxe7agy5rfa4jdesyzhtrb4day

by Bijan Saha

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abstracts [{'sha1': '3058cd36ccf59a1db8d2c81c093720a3da75faa3', 'content': 'Within the scope of Bianchi type-VI_0 spacetime we study the role of spinor\nfield on the evolution of the Universe. It is found that the presence of\nnontrivial non-diagonal components of energy-momentum tensor of the spinor\nfield plays vital role on the evolution of the Universe. As a result of their\nmutual influence there occur two different scenarios. In one case the\ninvariants constructed from the bilinear forms of the spinor field become\ntrivial, thus giving rise to a massless and linear spinor field Lagrangian.\nAccording to the second scenario massive and nonlinear terms do not vanish and\ndepending on the sign of coupling constants we have either an expanding mode of\nexpansion or the one that after obtaining some maximum value contracts and ends\nin big crunch generating spacetime singularity. This result shows that the\nspinor field is highly sensitive to the gravitational one.', 'mimetype': 'text/plain', 'lang': 'en'}, {'sha1': 'd5a80adf721dd3a43b6ede135fc8aca2ef07cbb3', 'content': 'Within the scope of Bianchi type-$VI_0$ spacetime we study the role of spinor\nfield on the evolution of the Universe. It is found that the presence of\nnontrivial non-diagonal components of energy-momentum tensor of the spinor\nfield plays vital role on the evolution of the Universe. As a result of their\nmutual influence there occur two different scenarios. In one case the\ninvariants constructed from the bilinear forms of the spinor field become\ntrivial, thus giving rise to a massless and linear spinor field Lagrangian.\nAccording to the second scenario massive and nonlinear terms do not vanish and\ndepending on the sign of coupling constants we have either an expanding mode of\nexpansion or the one that after obtaining some maximum value contracts and ends\nin big crunch generating spacetime singularity. This result shows that the\nspinor field is highly sensitive to the gravitational one.', 'mimetype': 'application/x-latex', 'lang': 'en'}]
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license_slug ARXIV-1.0
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release_date 2015-04-15
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release_year 2015
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title Nonlinear Spinor Fields in Bianchi type-VI_0 spacetime
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arxiv.base_id 1504.03883
arxiv.categories ['gr-qc']
arxiv.comments 14 pages
arxiv.journal_ref Eur. Phys. J. Plus (2015) 130: 208
superceded True