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理论物理通讯：英文版

Implementation of a Controlled-Phase Gate and Deutsch-Jozsa Algorithm with Superconducting Charge Qubits in a Cavity

Song, Ke-Hui, Zhou Zhou, Zhengwei, Guo Guo, Guang-Can

Published Jan 1, 2007• 0 citations
OpenAlex

Abstract

基于联合到一个洞的超导的量干扰设备(枪乌) ，我们为实现一扇量控制阶段门(QPG ) 和 Deutsch-Jozsa (DJ ) 建议一个计划由一个可控制的相互作用的算法。作为量数据公共汽车在现在的计划，在费用政体的 SQUID 工作，和洞地是 ultilized，它顺序一次被联合到仅仅一 qubit。在选择 qubit 和数据公共汽车之间的相互作用例如反响、散的相互作用，能被 SQUID.Especially 转各个的门电容认识到，公共汽车没激动，因此，洞腐烂在 DJ 的实现期间被压制算法。为 QPG 操作，公共汽车的模式操作最后是未改变的，尽管它的模式确实在操作期间激动。为典型实验数据，最后，我们简单地分析建议计划的试验性的可行性。基于简单操作，我们的计划可以在这被认识到固态系统，和我们的想法可以在另外的系统被认识到。

Related papers

Implementation of a Controlled-Phase Gate and Deutsch–Jozsa Algorithm with Superconducting Charge Qubits in a Cavity

Kehui Song, Zheng-Wei Zhou, Guo Guang-Can

Based on superconducting quantum interference devices (SQUIDs) coupled to a cavity, we propose a scheme for implementing a quantum controlled-phase gate (QPG) and Deutsch–Jozsa (DJ) algorithm by a controllable interaction. In the present scheme, the SQUID works in the charge regime, and the cavity field is ultilized as quantum data-bus, which is sequentially coupled to only one qubit at a time. The interaction between the selected qubit and the data bus, such as resonant and dispersive interaction, can be realized by turning the gate capacitance of each SQUID. Especially, the bus is not excited and thus the cavity decay is suppressed during the implementation of DJ algorithm. For the QPG operation, the mode of the bus is unchanged in the end of the operation, although its mode is really excited during the operations. Finally, for typical experiment data, we analyze simply the experimental feasibility of the proposed scheme. Based on the simple operation, our scheme may be realized in this solid-state system, and our idea may be realized in other systems.

Communications in Theoretical Physics•May 1, 2007•5 citations

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理论物理通讯：英文版•Jan 1, 2008•0 citations
基于联合到一个洞的超导的量干扰设备(枪乌) ，我们为实现一扇量控制阶段门(QPG ) 和 Deutsch-Jozsa (DJ ) 建议一个计划由一个可控制的相互作用的算法。作为量数据公共汽车在现在的计划，在费用政体的 SQUID 工作，和洞地是 ultilized，它顺序一次被联合到仅仅一 qubit。在选择 qubit 和数据公共汽车之间的相互作用例如反响、散的相互作用，能被 SQUID.Especially 转各个的门电容认识到，公共汽车没激动，因此，洞腐烂在 DJ 的实现期间被压制算法。为 QPG 操作，公共汽车的模式操作最后是未改变的，尽管它的模式确实在操作期间激动。为典型实验数据，最后，我们简单地分析建议计划的试验性的可行性。基于简单操作，我们的计划可以在这被认识到固态系统，和我们的想法可以在另外的系统被认识到。
Based on superconducting quantum interference devices (SQUIDs) coupled to a cavity, we propose a scheme for implementing a quantum controlled-phase gate (QPG) and Deutsch–Jozsa (DJ) algorithm by a controllable interaction. In the present scheme, the SQUID works in the charge regime, and the cavity field is ultilized as quantum data-bus, which is sequentially coupled to only one qubit at a time. The interaction between the selected qubit and the data bus, such as resonant and dispersive interaction, can be realized by turning the gate capacitance of each SQUID. Especially, the bus is not excited and thus the cavity decay is suppressed during the implementation of DJ algorithm. For the QPG operation, the mode of the bus is unchanged in the end of the operation, although its mode is really excited during the operations. Finally, for typical experiment data, we analyze simply the experimental feasibility of the proposed scheme. Based on the simple operation, our scheme may be realized in this solid-state system, and our idea may be realized in other systems.
我们在场为 qubits 联合了到单个模式的微波的二台超导的量干扰设备(枪乌) 认识到几何阶段移动门的一个计划删除。几何阶段移动门手术处于二个更低的流动状态，和 2 > 不参予的激动的州的 | 被动过程。枪乌不在门操作期间经历转变。因此，连贯由于精力，自发的排放基于 SQUIDsare 的层次压制了。自从洞模式在阶段空间沿着一个圆被代替，门对在整个操作的洞腐烂感觉迟钝，获得在 SQUID qubits 的二个更低的流动状态之上有条件的一个阶段，并且洞模式仍然处于原来的真空状态。基于与洞模式交往的 SQUID qubits，我们的建议途径可以在枪乌系统为量逻辑打开有希望的前景。