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Implementation of a Controlled-Phase Gate and deutsch-jozsa algorithm with Superconducting Charge Qubits in a Cavity

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Communications in Theoretical Physics 2007年第5期47卷 821-825页

作者： SONG Ke-Hui ZHOU Zheng-Wei GUO Guang-Can Department of Physics and Electronic Information Science Huaihua University Huaihua 418008 China Key Laboratory of Quantum Information University of Science and Technology of China Hefei 230026 China

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 （D J） 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.

关键词： a quantum controlled-phase gate deutsch-jozsa algorithm superconducting quantum interference device charge qubit

Implementing deutsch-jozsa algorithm in Cavity QED

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Communications in Theoretical Physics 2006年第2X期46卷 241-243页

作者： DONG Ping SONG Wei CAO Zhuo-Liang School of Physics and Material Science Anhui University Hefei 230039 China

We propose a simple scheme for implementing deutsch-jozsa algorithm in cavity QED. Our scheme is insensitive to both the cavity decay and thermal field because we use the large-detuned interaction. The scheme would be... 详细信息

关键词： deutsch-jozsa algorithm cavity QED large-detuned interaction

Scheme for Implementing Refined deutsch-jozsa algorithm via Superconducing Qubits

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Communications in Theoretical Physics 2008年第4期49卷 909-912页

作者： ZHENG Xiao-Hu YU Ben-Li ZHANG Gang CAO Zhuo-Liang Key Laboratory of Opto-electronic Information Acquisition and Manipulation Ministry of Education School of Physics and Material Science Anhui University Hefei 230039 China Department of Mathematics and Physics West Anhui University Lu＇an 237012 China

We propose a scheme of implementing the deutsch-jozsa algorithm based on superconducing charge qubits, which would be a key step to scale more complex quantum algorithms and very important for constructing a real quantum computer via superconducting charge qubits. The present scheme is simple but fairly efficient, and easily manipulated because arbitrary two-qubit can be selectively and effectively coupled by a common inductance. More manipulations can be carried out before decoherence sets in. The proposed scheme is in line with current technology.

关键词： deutsch-jozsa algorithm superconduction superconducting charge qubits

Implementation of deutsch-jozsa algorithm with Superconducting Quantum-Interference Devices via Raman Transition

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Communications in Theoretical Physics 2009年第1期51卷 135-138页

作者： ZHAN Zhi-Ming School of Physics ＆ Information Engineering Jianghan University Wuhan 430056 China

In this paper, a theoretical scheme is proposed to implement the deutsch-jozsa algorithm with SQUIDs （superconducting quantum-interference devices） in cavity via Raman transition. The scheme only requires a quantized cavity field and classical microwave pulses. In this scheme, no transfer of quantum information between the SQUIDs and the cavity is required, the cavity field is only virtually excited and thus the cavity decay is suppressed.

关键词： deutsch-jozsa algorithm superconducting Raman transition

Implementing the deutsch-jozsa algorithm by using Schrodinger cat states in cavity QED

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Chinese Physics B 2006年第10期15卷 2320-2323页

作者：杨榕灿李洪才林秀陈美香 School of Physics and Opto-Electronic Technology Fujian Normal University Fuzhou 350007 China

We propose a scheme to implement the deutsch-jozsa algorithm by using Schroedinger cat states in cavity quantum electron-dynamics （QED）. The scheme is based on the Raman interaction of a degenerate three-level A-type atom with a coherent state in a cavity. By using Schroedinger cat states, the atomic spontaneous emission can be minimized and the Hadamard transformation in our scheme is not needed.

关键词： cavity QED Schrodinger cat states deutsch-jozsa algorithm

Translation of Quantum Circuits into Quantum Turing Machines for deutsch and deutsch-jozsa Problems

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Journal of Quantum Computing 2020年第3期2卷 137-145页

作者： Giuseppe Corrente Universitàdi Torino Computer Science DepartmentVia PessinettoTorinoItaly

We want in this article to show the usefulness of Quantum Turing Machine(QTM)in a high-level didactic context as well as in theoretical *** use QTM to show its equivalence with quantum circuit model for deutsch and deutsch-jozsa *** we introduce a strategy of translation from Quantum Circuit to Quantum Turing models by these *** we illustrate some features of Quantum Computing such as superposition from a QTM point of view and starting with few simple examples very known in Quantum Circuit form.

关键词： deutsch-jozsa algorithm Quantum Computing quantum turing machine