任意可调外规范场中格点玻色子的量子模拟结构
Quantum Simulation Architecture for Lattice Bosons in Arbitrary, Tunable External Gauge Fields
摘要：
我们描述了一个一维或二维的非对称量子比特对的晶格，耦合的安排使得单量子比特激发态的运动模仿了带电晶格玻色子在磁场中跳跃的行为。我们特别表明，可以选择的多体电路的参数，以达到任何两个元素之间的复杂的跳跃相位可以调谐到任何值，通过简单地调整两个施加的振荡电压信号的相对相位的制度。我们还提出了一个具体的实现我们的模型，使用耦合的三个结通量量子比特，其中可以达到强相互作用的玻色子量子霍尔极限，在那里可以找到任何激发。这些电路可用于拓扑量子计算。
英文摘要：
We describe a lattice of asymmetrical qubit pairs in one or two dimensions, with couplings arranged so that the motion of single-qubit excited states mimics the behavior of charged lattice bosons hopping in a magnetic field. We show in particular that one can choose the parameters of the many-body circuit to reach a regime where the complex hopping phase between any two elements can be tuned to any value by simply adjusting the relative phases of two applied oscillating voltage signals. We also propose a specific realization of our model using coupled three junction flux qubits, in which one can reach the strongly interacting bosonic quantum Hall limit where one will find anyonic excitations. The circuits could be used for topological quantum computation.
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