论文标题
$ \ textit {draiding} $ majoaranas to Dynamine gromination to Dynamed Gonerganter Hamiltonians
$\textit{Draiding}$ majoranas to dynamically engineer Hamiltonians
论文作者
论文摘要
我们在汉密尔顿工程学的目的中建议和分析具有多种局部Majorana模式（$ \ textit {majoranas} $）系统中的定期编织协议。协议依赖于双辫子$ - \ textit {draids} - $ $ $ the the the the Majoaraas的标志，因为一个是一路绕过另一个。快速绘制会动态抑制某些或全部 - 莫霍那间耦合。抑制所有耦合的协议可以大大减少几乎退化的多体子空间（“ Majorana纯化”）中的残差动力学，从而产生更健壮的计算子空间。可以通过选择性地将DRAID应用于一些重叠（不完美的）Majoranas来实现非平凡的拓扑模型。重要的是，可以实施DRAID，而无需物理上辫子或使用投影测量。特别是，可以通过定期调节量子点和拓扑超导电线之间的耦合来动态抑制Majoridanas的杂交，而不是当前的实验设置中的数量级，可以通过定期调节量子点和拓扑超导丝之间的耦合来进行DRAID。
We propose and analyze a family of periodic braiding protocols in systems with multiple localized Majorana modes ($\textit{majoranas}$) for the purposes of Hamiltonian engineering. The protocols rely on double braids$-\textit{draids}-$which flip the signs of both majoranas, as one is taken all the way around the other. Rapid draiding dynamically suppresses some or all inter-majorana couplings. Protocols suppressing all couplings can drastically reduce residual dynamics within the nearly degenerate many-body subspace ("majorana purification") producing more robust computational subspace. Non-trivial topological models can be achieved by selectively applying draids to some of overlapping (imperfect) majoranas. Importantly, draids can be implemented without having to physically braid majoranas or using projective measurements. In particular, draids can be performed by periodically modulating the coupling between a quantum dot and topological superconducting wire to dynamically suppress the hybridization of majoranas by more than an order of magnitude in current experimental setups.
