论文标题
具有强大两体损失的一维费米的动力学理论：通用的非热zeno物理和自旋电荷分离
A dynamical theory for one-dimensional fermions with strong two-body losses: universal non-Hermitian Zeno physics and spin-charge separation
论文作者
论文摘要
我们研究了与两体损失的自旋-1/2费米的相互作用的一维气体。表征固定态方法的动力学相图显示了一个宽量子 - ZENO区域，该区域通过相关的非铁人杂志的最低特征值的特殊行为来确定。我们使用基于电荷和自旋自由度的有效脱钩的近似方案来表征这种Zeno制度的通用动力学，在该方案中，后者根据非Hermitian Heisenberg Hamiltonian有效地以非马克维亚方式进化。我们提供了从初始状态，每个位置一个粒子具有不一致和反铁磁旋转顺序的时间演变的详细结果，显示了两个非平衡演化如何构成截然不同的电荷相关性。
We study an interacting one-dimensional gas of spin-1/2 fermions with two-body losses. The dynamical phase diagram that characterises the approach to the stationary state displays a wide quantum-Zeno region, identified by a peculiar behaviour of the lowest eigenvalues of the associated non-Hermitian Hamiltonian. We characterise the universal dynamics of this Zeno regime using an approximation scheme based on a effective decoupling of charge and spin degrees of freedom, where the latter effectively evolve in a non-Markovian way according to a non-Hermitian Heisenberg Hamiltonian. We present detailed results for the time evolution from initial states with one particle per site with either incoherent and antiferromagnetic spin order, showing how the two non-equilibrium evolutions build up drastically different charge correlations.
