论文标题
超对称旋转偶联可防止奇数整数旋转量子隧穿
Supersymmetric spin-phonon coupling prevents odd integer spins from quantum tunneling
论文作者
论文摘要
磁化强度的量子隧穿是一种现象，即使在最低温度下，也阻碍了用于存储目的的小各向异性自旋系统的现象。通常认为是在各向异性屏障上磁化的温度依赖性松弛的声子，也有助于整数自旋量子数的磁化隧道。在这里，我们证明了某些自旋波汉顿人意外地与隧道差距的打开，即使是强烈的旋转旋转耦合也是如此。理解这种现象的关键是由涉及自旋和声音自由度的潜在超对称性提供的。
Quantum tunneling of the magnetization is a phenomenon that impedes the use of small anisotropic spin systems for storage purposes even at the lowest temperatures. Phonons, usually considered for temperature dependent relaxation of magnetization over the anisotropy barrier, also contribute to magnetization tunneling for integer spin quantum numbers. Here we demonstrate that certain spin-phonon Hamiltonians are unexpectedly robust against the opening of a tunneling gap, even for strong spin-phonon coupling. The key to understanding this phenomenon is provided by an underlying supersymmetry that involves both spin and phonon degrees of freedom.
