Geometry of a two-spin quantum state in evolution
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Publication:2994591
DOI10.1088/1751-8113/49/4/045301zbMATH Open1342.81113arXiv1507.02197OpenAlexW3098744495MaRDI QIDQ2994591
Author name not available (Why is that?)
Publication date: 2 August 2016
Published in: (Search for Journal in Brave)
Abstract: We study the quantum evolution of a two-spin system described by the isotropic Heisenberg Hamiltonian in the external magnetic field. It is shown that this evolution happens on a two-parametric closed manifold. The Fubini-Study metric of this manifold is obtained. It is found that this is the metric of the torus. The entanglement of the states which belong to this manifold is investigated.
Full work available at URL: https://arxiv.org/abs/1507.02197
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