Dynamical invariants for quantum control of four-level systems
Dynamical invariants for quantum control of four-level systems
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DOI：
10.1103/physreva.86.062312
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发表时间：
2012-05
影响因子：
2.9
通讯作者：
Utkan Gungordu;Yidun Wan;M. Fasihi;M. Nakahara
中科院分区：
文献类型：
--
作者：
Utkan Gungordu;Yidun Wan;M. Fasihi;M. Nakahara
我们提出了一个李代数分类和详细的建设的动力学不变量，也被称为刘易斯-Riesenfeld不变量，四个级别的系统，包括两个量子比特系统，这是最相关的和足够普遍的量子控制和计算。这些不变量不仅精确地求解了四能级系统的含时Schr“odinger方程，而且使四能级系统的控制和基于此的量子计算成为可能，并且可以快速地超越绝热区.
We present a Lie-algebraic classification and detailed construction of the dynamical invariants, also known as Lewis-Riesenfeld invariants, of the four-level systems including two-qubit systems which are most relevant and sufficiently general for quantum control and computation. These invariants not only solve the time-dependent Schr\"odinger equation of four-level systems exactly but also enable the control, and hence quantum computation based on which, of four-level systems fast and beyond adiabatic regimes.