Quantum state preparation method and device

A quantum state and final quantum technology, applied in the field of quantum state preparation, can solve the problems of large number of quantum logic gates, low practicability, large number of qubits, etc., and achieve the effect of less storage and computing resources and reduced quantity

Pending Publication Date: 2021-01-15
HEFEI ORIGIN QUANTUM COMP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using the existing technology, the number of qubits required is large, the number of quantum logic gates is large, and when the value of the elements of the vector is large, the conversion scheme is complicated and the practicability is low.

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  • Quantum state preparation method and device
  • Quantum state preparation method and device
  • Quantum state preparation method and device

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Embodiment Construction

[0042] The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0043] Embodiments of the present invention firstly provide a method for preparing a quantum state, which can be applied to electronic devices, such as computer terminals, specifically, ordinary computers, quantum computers, and the like.

[0044] The following will describe it in detail by taking it running on a computer terminal as an example. figure 1 A block diagram of the hardware structure of a computer terminal for a method for preparing a quantum state provided by an embodiment of the present invention. Such as figure 1 As shown, the computer terminal may include one or more ( figure 1Only one is shown in the figure) a processor 102 (the processor 102 may include but not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104...

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Abstract

The invention discloses a quantum state preparation method and device. The method comprises the following steps: determining the quantum bit number n of m elements in coded target data; wherein m andn meet the condition that m is equal to 2n, and m and n are positive integers; initializing n quantum bits, encoding the element values of the m elements to 2n quantum states of the n quantum bits byusing a quantum logic gate, and outputting a final quantum state containing the encoded 2n quantum states; wherein the amplitudes of the coded 2n quantum states are in one-to-one correspondence with the element values of the m elements. By utilizing the embodiment of the invention, the quantity of coded quantum bits can be reduced by utilizing the superposition characteristic of the quantum state,so that the coding of the target data is completed with fewer storage and calculation resources.

Description

technical field [0001] The invention belongs to the technical field of quantum computing, in particular to a method and device for preparing a quantum state. Background technique [0002] Quantum computer is a kind of physical device that follows the laws of quantum mechanics to perform high-speed mathematical and logical operations, store and process quantum information. When a device processes and computes quantum information and runs quantum algorithms, it is a quantum computer. Quantum computer has become a key technology under research because of its ability to deal with mathematical problems more efficiently than ordinary computers, for example, it can speed up the time to crack RSA keys from hundreds of years to hours. [0003] Quantum computing simulation is an analog computing that follows the laws of quantum mechanics by means of numerical computing and computer science. As a simulation program, it uses the high-speed computing capabilities of computers to describ...

Claims

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Application Information

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IPC IPC(8): G06N10/00
CPCG06N10/00
Inventor窦猛汉赵东一
OwnerHEFEI ORIGIN QUANTUM COMP TECH CO LTD