论文标题
量子滑动连接的紧凑描述
Compact description of quantum phase slip junctions
论文作者
论文摘要
量子电路理论是一种强大且不断发展的工具，可预测超导电路的动力学。用语言，量子相滑（QPS）被认为是约瑟夫森效应的确切双重。但是，这种二元性使QPS结合到一个统一的理论框架中非常困难，并且正如我们所表明的那样，对不同的形式主义产生了严重的不一致，并且在某些情况下很难包括时间依赖时间的磁通量。我们建议通过减少和压实描述QPS过程的希尔伯特空间来解决这些问题。我们的治疗方法首次提供了对Aharonov-Bohm和Aharonov-Casher效应的统一描述，可以正确地定义了对环境的诱导相互作用的有效形式，并允许对如何包括电动力的最新见解。最后，我们表明，紧凑型对于正确预测涉及QPS连接的量子架构的可用计算空间同样重要。
Quantum circuit theory is a powerful and ever-evolving tool to predict the dynamics of superconducting circuits. In its language, quantum phase slips (QPSs) are famously considered to be the exact dual to the Josephson effect. However, this duality renders the integration of QPS junctions into a unified theoretical framework very difficult, and as we show, gives rise to serious inconsistencies for different formalisms, and in some cases difficulties to include time-dependent flux driving. We propose to resolve these issues by reducing and compactifying the Hilbert space describing the QPS processes. Our treatment provides for the first time a unified description of the Aharonov-Bohm and Aharonov-Casher effects, properly defines the valid form of inductive interactions to an environment, and allows to account for recent insights on how to include electromotive forces. Finally, we show that the compactification is likewise important for correctly predicting the available computational space for qubit architectures involving QPS junctions.
