Parsimonious and robust realizations of unitary maps in the one-way model
Parsimonious and robust realizations of unitary maps in the one-way model
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DOI：
10.1103/physreva.72.064301
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发表时间：
2005-12
影响因子：
2.9
通讯作者：
V. Danos;E. Kashefi;P. Panangaden
中科院分区：
文献类型：
--
作者：
V. Danos;E. Kashefi;P. Panangaden
我们提出了一组新的发电机，用于n c 2上的统一地图，这与传统的基于基于旋转的生成集不同，因为它使用了单参数j（�）的单参数家族，以及一个2 Quibit ^z，每个生成器仅使用两个量子位在单向模型[1]中实现，这既导致一般单位的偏见和强大的实现。一家只使用14个量子位，并且具有2色的基本纠缠图（已知可以产生强大的纠缠状态）。
We present a new set of generators for unitary maps over n C 2 which differs from the traditional rotation-based generating set in that it uses a single-parameter family of 1-qubit unitaries J(�), together with a single 2-qubit unitary, ^Z. Each generator is implementable in the one-way model [1] using only two qubits, and this leads to both parsimonious and robust implementations of general unitaries. As an illustration, we give an implementation of the controlled-U family which uses only 14 qubits, and has a 2-colourable underlying entanglement graph (known to yield robust entangled states).