Controlling the RKKY interaction and heat transport in a Kitaev spin liquid via $Z_2$ flux walls

Kitaev自旋液体中马约拉纳零模的场驱动时空操控

Field-driven spatiotemporal manipulation of Majorana zero modes in a Kitaev spin liquid

本文提出利用时间依赖局域磁场操控Kitaev自旋液体中的visons，进而移动伴随的马约拉纳零模，揭示了巡游马约拉纳费米子在输运中的关键作用，为量子计算提供指导。

具有单轴单离子各向异性的自旋-1 Kitaev-$Γ$链中的交叉和转变

Crossover and Changeover in Spin-1 Kitaev-$Γ$ Chain with Uniaxial Single-ion Anisotropy

研究具有单轴单离子各向异性的自旋-1 Kitaev-$Γ$链，通过大规模密度矩阵重整化群计算和玻色化分析，揭示其从Kitaev相到大$D$相的交叉及负SIA时二聚化相和Haldane相之间转变特性，确立该链为控制相关现象的最小平台。

Kitaev自旋液体候选材料Ru$X_3$（$X$ = Cl, Br, I）中的$J=1/2$赝自旋与$d$-$p$杂化

$J=1/2$ Pseudospins and $d$-$p$ Hybridization in the Kitaev Spin Liquid Candidates Ru$X_3$ ($X$ = Cl, Br, I)

本研究利用Ru $L_3$边共振非弹性X射线散射验证了Kitaev自旋液体候选材料Ru$X_3$的$J=1/2$磁性描述，并揭示了卤素$p$轨道在控制其电子性质中的关键作用。

在具有 $5$ 个量子比特的单个六边形上的最小 Kitaev 自旋液体中 Majorana 费米子的编织与融合

Braiding and fusion of Majorana fermions in minimal Kitaev spin liquid on a single hexagon with $5$ qubits

研究单个六边形上最小 Kitaev 自旋液体，利用 32 重零能态构建 5 个受粒子-空穴对称性保护的量子比特，通过自旋算符实现 Majorana 费米子的编织、融合及量子比特初始化、操作与读出。

利用光学腔控制邻近量子自旋液体 $\alpha$-RuCl$_3$ 的磁态

Controlling the magnetic state of the proximate quantum spin liquid $α$-RuCl$_3$ with an optical cavity

本研究利用光学腔的真空涨落和光与物质耦合，实现了对邻近量子自旋液体 $\alpha$-RuCl$_3$ 磁态的控制，可稳定多种磁相，并能在太赫兹波段仅靠真空涨落实现从锯齿形反铁磁到铁磁的转变，甚至通过少光子泵浦进入 Kitaev 量子自旋液体态。

Kitaev自旋液体在能量耗散下非阿贝尔任意子的实时控制

Real-time control of non-Abelian anyons in Kitaev spin liquid under energy dissipation

本研究通过实时模拟引入能量耗散，实现对Kitaev自旋液体中非阿贝尔任意子（vison伴随马约拉纳零模）的生成、移动和湮灭控制，并揭示马约拉纳零模空间范围对移动效率的影响，强调耗散在控制中的关键作用。

马约拉纳边缘模式重塑Kitaev蜂窝带的基布尔-祖雷克标度

Majorana Edge Modes Reshape Kibble-Zurek Scaling in Kitaev Honeycomb Ribbons

该研究以Kitaev蜂窝模型为对象，对比锯齿形带、扶手椅形带与周期性管，发现马约拉纳边缘模式会改变基布尔-祖雷克标度，为拓扑物质的可编程模拟提供几何分辨基准。

Probing topological states through the exact non-Markovian decoherence dynamics of a spin coupled to a spin bath in real-time domain

In this paper, we explore the decoherence dynamics of a probing spin coupled to a spin bath, where the spin bath is given by a controllable 1D transverse-field Ising chain. The 1D transverse-field Ising chain with free-ends boundary condition is equivalent to a modified Kitaev model with non-local Majorana bound states in its topological phase. We find that the probing spin non-Markovian decoherence dynamics can manifest the topological structure of the spin chain. By controlling the external magnetic field on the Ising chain, we find the close relationships between the quantum phase transitio…

Static and dynamic magnetic properties of honeycomb lattice antiferromagnets Na$_{2}M_{2}$TeO$_{6}$, $M$ = Co and Ni

The magnetic structures and spin dynamics of Na$_{2}$Co$_{2}$TeO$_{6}$ and Na$_{2}$Ni$_{2}$TeO$_{6}$ are investigated by means of elastic and inelastic neutron scattering measurements and the results are discussed in the context of a generalized Kitaev-Heisenberg model on honeycomb lattice with strong spin-orbit coupling. The large number of parameters involved in the Hamiltonian model are evaluated by using an iterative optimization algorithm capable of extracting model solutions and simultaneously estimating their uncertainty. The analyses establish that both Co$^{2+}$ ($d^7$) and Ni$^{2+}$ …

Floquet engineering of long-range p-wave superconductivity

Floquet Majorana Fermions appear as steady states at the boundary of time-periodic topological phases of matter. In this work, we theoretically study the main features of these exotic topological phases in the periodically driven one-dimensional Kitaev model. By controlling the ac fields, we can predict new topological phase transitions that should give rise to signatures of Majorana states in experiments. Moreover, the knowledge of the time-dependence of these Majorana states allows one to manipulate them. Our work contains a complete analysis of the monochromatic driving in different frequen…

Spin liquids from Majorana Zero Modes in a Cooper Box

We propose a path for constructing diverse interacting spin systems from topological nanowires in Cooper Boxes. The wires are grouped into a three-wire building block called an 'hexon', consisting of six Majorana zero modes. In the presence of a strong charging energy, the hexon becomes a Cooper box equivalent to two spin-$1/2$ degrees of freedom. By considering arrays of hexons and controlling the distances between the various wires, one can tune the Hamiltonian governing the low-energy spins, thus providing a route for controllably constructing interacting spin systems in one- and two-dimens…

Quantum spin liquids bootstrapped from Ising criticality in Rydberg arrays

Arrays of Rydberg atoms constitute a highly tunable, strongly interacting venue for the pursuit of exotic states of matter. We develop a new strategy for accessing a family of fractionalized phases known as quantum spin liquids in two-dimensional Rydberg arrays. We specifically use effective field theory methods to study arrays assembled from Rydberg chains tuned to an Ising phase transition that famously hosts emergent fermions propagating within each chain. This highly entangled starting point allows us to naturally access spin liquids familiar from Kitaev's honeycomb model, albeit from an e…