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Entangled quantum state purification method, device, equipment, storage medium and product

A purification method and technology of quantum states, applied in quantum computers, computing, instruments, etc., can solve problems such as noise in entangled states

Active Publication Date: 2021-09-28
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Unfortunately, entangled states generated by quantum devices are often noisy and still some distance away from the ideal Bell state

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  • Entangled quantum state purification method, device, equipment, storage medium and product
  • Entangled quantum state purification method, device, equipment, storage medium and product
  • Entangled quantum state purification method, device, equipment, storage medium and product

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Embodiment Construction

[0028] The exemplary embodiments of the present application will be described below in connection with the accompanying drawings, including various details of the present application embodiments to help understand, and they should be considered simply exemplary. Accordingly, it will be appreciated by those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. Similarly, a description of the well-known functions and structures is omitted in order to clear and concise, the following description is omitted.

[0029] In quantum techniques, quantum entanglement is a key resource for realizing various quantum information technologies such as quantum security communication, quantum computing, quantum network, and Bell state is Quantum Key Distribution, Quantum Superdense Coding. Important basic resources of quantum TELEPORTATION. Therefore, the high-fidelity Bell st...

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Abstract

The disclosure provides a method, device, equipment, storage medium and product for purifying an entangled quantum state, and relates to the field of quantum computing. The specific implementation scheme is: determining the first group of qubits and the second group of qubits; applying the first parameterized quantum circuit corresponding to the first group of qubits to at least part of the first qubits in the first group of qubits, And obtain the first measurement result; apply the second parameterized quantum circuit corresponding to the second group of qubits to at least part of the second qubits in the second group of qubits, and obtain the second measurement result, wherein the The target second qubit is a qubit entangled with the target first qubit; The entangled quantum state corresponding to the qubit is purified, and the target purified quantum state is obtained. In this way, the purification of the entangled quantum state is realized.

Description

Technical field [0001] The present application relates to the field of data processing, in particular to quantum calculations. Background technique [0002] One of the most important resources in Quantum Technology is quantum entanglement, quantum entanglement is the basic components of quantum computing and quantum information processing. Among them, the most important thing is that Bell State is used to describe the maximum entangled state between two quantum bit (or quantum systems), including four maximum entangled states. Bell state has a vital role in quantum safety communication, distributed quantum calculations. Unfortunately, the entangled state generated by quantum equipment is usually noise, and there is still a distance from the ideal Bell state. Therefore, how to effectively correct the entangled distillation (Entanglement Purification) from the Entanglement Purification, which is purified from the Entanglement Purification, which has become a quantum technology. A c...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06N10/00
CPCG06N10/00
Inventor 王鑫赵犇池赵炫强王子和刘人宇宋旨欣
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD