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Quantum entanglement detection method and device, electronic equipment and storage medium

A technology of quantum entanglement and detection methods, applied in the field of quantum computing, can solve problems such as the complexity of quantum entanglement detection methods, achieve high practicability and efficiency, and reduce workload

Active Publication Date: 2021-03-23
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the method of quantum entanglement detection is relatively complicated, for example, for the two-party quantum state ρ of n qubits AB , need to copy about 2 n ρ AB , to achieve 2 n different probing schemes

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  • Quantum entanglement detection method and device, electronic equipment and storage medium
  • Quantum entanglement detection method and device, electronic equipment and storage medium
  • Quantum entanglement detection method and device, electronic equipment and storage medium

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Embodiment Construction

[0028] Exemplary embodiments of the present application are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present application to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

[0029] So far, various types of computers in application are based on classical physics as the theoretical basis of information processing, which are called traditional computers or classical computers. Classical information systems store data or programs using binary data bits that are physically the easiest to implement, and each binary data bit is represented by 0...

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Abstract

The invention discloses a quantum entanglement detection method and device, electronic equipment and a storage medium, and relates to the technical field of quantum computing. The method comprises thesteps of obtaining a parameterized quantum circuit, the parameterized quantum circuit acts on two initial quantum states to obtain two first quantum states, and the parameterized quantum circuit comprises adjustable parameters; obtaining a loss function based on a to-be-measured sub-state and the two first quantum states; minimizing the loss function, and obtaining a value of the minimized loss function; and detecting whether the to-be-measured sub-state is an entangled state based on the value. The quantum entanglement detection method is simpler and easier to implement for detecting whetherthe quantum is in the entanglement state, and the workload of quantum entanglement detection is reduced.

Description

Technical field [0001] The present application relates to the field of quantum computing technology, and in particular to a quantum entanglement detection method, device, electronic equipment and storage medium. Background technique [0002] In the field of quantum computing technology, quantum entanglement is a key resource for realizing various quantum information technologies such as quantum encryption, quantum computing, and quantum networks. Stable and reliable quantum entanglement detection can more easily identify or verify quantum entanglement resources in quantum entanglement processing. At present, the method of detecting quantum entanglement is relatively complex. For example, for the two-party quantum state ρ of n qubits, AB , need to copy about 2 n ρ AB , achieve 2 n different detection plans. Contents of the invention [0003] The present disclosure provides a quantum entanglement detection method, device, electronic equipment and storage medium. [0004...

Claims

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Application Information

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IPC IPC(8): G06N10/00
CPCG06N10/00
Inventor 王琨王鑫赵炫强
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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