Thermal entanglement in a two-qubit Ising chain subjected to Dzialoshinski-Moriya interaction

具有DM反对称各向异性交换作用的磁链中的两量子比特纠缠

Two Qubit Entanglement in Magnetic Chains with DM Antisymmetric Anisotropic Exchange Interaction

本文研究了各向异性反对称交换相互作用Dzialoshinskiii-Moriya（DM）对各种磁自旋模型（包括纯DM模型和最一般的XYZ模型）中两量子比特纠缠的影响.我们发现DM相互作用产生的时间演化可以实现SWAP门，并讨论了现实的准一维磁体，它可以实现。结果表明，包括DM相互作用的任何海森堡模型创建，当它不存在，或加强，当它存在，纠缠。通过对T=0时系统基态的研究，给出了这些结果的物理解释。指出了共存对DM相互作用的非解析依赖性及其与量子相变的关系。结果表明，具有DM耦合的自旋模型在量子计算中具有潜在的应用，DM相互作用可以作为纠缠的有效控制参数。

分析具有Dzyaloshinskii-Moriya相互作用的外部磁场中qubit-qutrit系统的负性判据

Analyzing negativity criterion in qubit-qutrit system located in external magnetic fields with the Dzyaloshinskii-Moriya interaction

本研究分析外部磁场和DM相互作用下qubit-qutrit系统的纠缠动力学，采用负性判据，揭示XXX和XYZ模型中的纠缠演化规律。

作为含Dzyaloshinskii-Moriya相互作用的无序自旋链中多体局域化探针的真实多体纠缠

Genuine multipartite entanglement as a probe of many-body localization in disordered spin chains with Dzyaloshinskii-Moriya interactions

该研究提出以淬灭平均真实多体纠缠（GME）作为多体局域化（MBL）相变的可靠探针，验证了其在含DM相互作用的无序自旋链中对相变点的识别准确性，并发现三体DM相互作用可稳定热相、延迟局域化。

Adiabatic Quantum Estimation: A Numerical Study of the Heisenberg XX Model with Antisymmetric Exchange

In this paper, we address the adiabatic technique for quantum estimation of the azimuthal orientation of a magnetic field. Exactly solving a model consisting of a two-qubit system, where one of which is driven by a static magnetic field while the other is coupled with the magnetic field rotating adiabatically, we obtain the analytical expression of the quantum Fisher information (QFI). We investigate how the two-qubit system can be used to probe the azimuthal direction of the field and analyze the roles of the intensities of the magnetic fields, Dzyaloshinskii-Moriya interaction, spin-spin cou…

驱动量子比特中的空间关联经典与量子噪声：好、坏与丑

Spatially correlated classical and quantum noise in driven qubits: The good, the bad, and the ugly

本文研究了驱动量子比特在空间关联经典与量子噪声下的动力学，发现关联量子噪声可诱导伊辛、对称交换及Dzyaloshinskii-Moriya相互作用并产生纠缠，且系统呈现不同动力学相，同时揭示了1/f噪声时空关联对退相干和纠缠恢复的影响。