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| 1 | A theoretical framework for quantum image representation and data loading scheme显示文摘Two fundamental problems exist in the use of quantum computation to process an image or signal.The first one is how to represent giant data,such as image data,using quantum state without losing information.The second one is how to load a colossal volume of data into the quantum registers of a quantum CPU from classical electronic memory.Researches on these two questions are rarely reported.Here an entangled state is used to represent an image(or vector)for which two entangled registers are used to store a vector component and its classical address.Using the representation,n1+n2+8 qubits are used to store the whole information of the gray image that has a 2n1×2n2 size at a superposition of states,a feat is not possible with a classic computer.The way of designing a unitary operation to load data,such as a vector(or image),into the quantum registers of a quantum CPU from electronic memory is defined herein as a quantum loading scheme(QLS).In this paper,the QLS with time complexity O(log2N)is presented where N denotes the number of vector components,a solution that would break through the efciency bottleneck of loading data.QLS would enable a quantum CPU to be compatible with electronic memory and make possible quantum image compression and quantum signal processing that has classical input and output. | HU BenQiong HUANG XuDong ZHOU RiGui WEI YanYu WAN Qun PANG ChaoYang | 2014 | Science China(Information Sciences)2014，57，3： | 5 |
| 2 | Transistor realization of reversible 'ZS' series gates and reversible array multiplier 显示文摘 | ZHOU RIGUI SHI YANG WANG HUI' AN | 2011 | Microelectronics Journal2011，42，2： | 1 |
| 3 | Quantum pattem recognition with probability of 100% 显示文摘 | ZHOU RIGUI DING QIULIN | 2008 | International Journal of Theoreti- cal Physics2008，47，5： | 1 |
| 4 | Optimization approaches for designing a novel g - bit reversible comparator 显示文摘 | ZHOU RIGUI ZHANG MAN QUN WU QIAN | 2013 | International Journal of Theoretical Physics2013，52，2： | 1 |
| 5 | Quantum associative neural network with nonlinear search algorithm显示文摘 | Zhou Rigui Wang Huian Wu Qian | 2012 | International Journal of Theoretical Physics2012，51，3： | 1 |
| 6 | Quantum image encryption and decryption algorithms based on quantum image geometric transformations显示文摘 | Zhou Rigui Wu Qian Zhang Manqun | 2013 | International Journal of Theoretical Physics2013，52，6： | 1 |
| 7 | Application of fixed- point DSP and 16-bit parallel output A/D and dual-port RAM 显示文摘 | ZHOU Rigui HU Jingchun YE Shuisheng | 2003 | Inter- national Symposium on Test and Measurement2003，，1： | 1 |
| 8 | Transistor realization of reversible 'ZS' series gates and reversible array multiplier 显示文摘 | ZHOU RIGUI SHI YANG WANG HUIAN | 2011 | Microeleetronics J2011，42，2： | 1 |
| 9 | Quantum image encryption and decryption algorithms based on quantum image geometric transformations 显示文摘 | ZHOU RIGUI WU QIAN ZHANG MANQUN | 2013 | International J Theoretical Physics2013，52，6： | 1 |
| 10 | Distributed entanglement generation from asynchronously excited qubits显示文摘The generation of GHZ states calls for simultaneous excitation of multiple qubits.The peculiarity of such states is reflected in their nonzero distributed entanglement which is not contained in other entangled states.We study the optimal way to excite three superconducting qubits through a common cavity resonator in a circuit such that the generation of distributed entanglement among them could be obtained at the highest degree in a time-controllable way.A non-negative measure quantifying this entanglement is derived as a time function of the quadripartite system evolution.We find that this measure does not stay static but obtains the same maximum periodically.When the qubit-resonator couplings are allowed to vary,its peak value is enhanced monotonically by increasing the greatest coupling strength to one of the qubits.The period of its peak to peak revival maximizes when the couplings become inhomogeneous,thus qubit excitation becoming asynchronous,at a relative ratio of 0.35.The study demonstrates the role of asynchronous excitations for time-controlling multi-qubit systems,in particular in extending entanglement time. | Tian-Tian Huan Rigui Zhou Hou Ian | 2022 | Frontiers of physics2022，17，4： | 0 |
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