CN-122027036-A - Quantum computing communication signal enhancement method and system based on quantum error correction

CN122027036ACN 122027036 ACN122027036 ACN 122027036ACN-122027036-A

Abstract

The invention discloses a quantum computing communication signal enhancement method and a system based on quantum error correction, which relate to the field of quantum communication and comprise an acquisition module, a transmission module and a control module, wherein the acquisition module is used for capturing an original quantum signal generated in the quantum computing communication process and carrying out preliminary normalization and transmission guiding pretreatment on the signal; the invention optimizes the adaptability of the quantum signal and a transmission channel by carrying out accurate pretreatment on the quantum signal, effectively reduces baseline noise and transmission loss, reduces the influence of phase offset, and accurately identifies and eliminates the quantum state distortion interference in transmission by applying a quantum state characteristic dynamic adaptation error correction mechanism.

Inventors

SHENG DIANXIN
ZHANG JIALE
ZHANG XUZHI

Assignees

浙江国盾量子电力科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260123

Claims (9)

1. A quantum computing communication signal enhancement system based on quantum error correction, comprising: The acquisition module is used for capturing an original quantum signal generated in the quantum computing communication process and carrying out preliminary normalization and transmission guiding pretreatment on the signal; The generation module is used for identifying quantum signal characteristics, constructing a self-adaptive quantum error correction coding sequence based on the quantum signal characteristics, and enabling the error correction coding sequence to be matched and adapted with an original signal; the error correction module is used for calling the generated quantum error correction coding sequence and carrying out error correction operation on the noise-containing quantum signal so as to eliminate quantum state distortion interference in signal transmission; The driving module is used for generating a quantum enhancement driving signal based on the quantum state parameters of the quantum signal after error correction; the modulation module is used for carrying out cooperative modulation on the enhanced driving signal and the corrected quantum signal to complete the intensity enhancement and quantum state stability optimization of the quantum signal; And the output module is used for carrying out transmission adaptation processing on the modulated enhanced quantum signals and then transmitting the modulated enhanced quantum signals to the vector sub-calculation communication receiving end.
2. The quantum computing communication signal enhancement system according to claim 1, wherein the preliminary normalization of the original quantum signal in the acquisition module is a quantum state normalization, and the quantum state normalization logic is: ; wherein: is a normalized quantum state vector; a quantum state vector which is an original quantum signal; Is that Is a hermite conjugate vector of (2); Normalizing the compensation factor for the quantum state; The transmission guiding processing of the original quantum signal in the acquisition module obeys the transmission guiding parameter of the signal based on the transmission characteristic parameter of the quantum channel, so that the impedance characteristic of the original quantum signal and the transmission channel are matched.
3. The quantum computing communication signal enhancement system based on quantum error correction according to claim 1, wherein when the generation module identifies the quantum signal characteristics, a feature vector set is constructed through quantum state entropy, quantum coherence and quantum entanglement degree of the quantum signal, and an error correction coding sequence is dynamically generated based on the cooperative association relation of quantum feature parameters in the feature vector set, and the calculation of the quantum state entropy obeys the following: ; wherein: The quantum state entropy of the quantum signal; The quantum state energy level number of the quantum signal; the occupancy probability for the ith quantum state energy level; is a density matrix of quantum signals; Is a quantum coherence correction coefficient; Traces that are squares of the density matrix; The quantum coding dynamic construction mechanism is to dynamically adjust the quantum bit arrangement and the phase configuration of an error correction coding sequence through real-time matching of the fluctuation range of the quantum state entropy, the attenuation rate of quantum coherence and the stable interval of quantum entanglement in the feature vector set, so that the error correction coding sequence and the quantum state feature of an original signal form targeted adaptation, the adaptation effect passes through quantum state overlapping degree verification, and the matching adaptation degree meets a preset adaptation threshold.
4. The quantum computing communication signal enhancement system based on quantum error correction according to claim 1, wherein the error correction module constructs a quantum entangled state from an error correction coding sequence and a noise-containing quantum signal when performing error correction operation, and the recognition and elimination of noise are completed based on quantum non-locality of the entangled state, and the quantum state distortion degree of the quantum signal after error correction is: ; wherein: the quantum state distortion degree of the quantum signal after error correction; A quantum state vector which is a quantum signal after error correction; Is a quantum state vector of an undistorted ideal quantum signal; Is a noise suppression coefficient; is a trace of a quantum noise density matrix; is a density matrix of quantum noise; Post error correction operation constraints Is within a preset distortion allowing interval.
5. The quantum computing communication signal enhancement system based on quantum error correction according to claim 1, wherein when the driving module generates a quantum enhancement driving signal, the quantum state energy, the quantum state life and the quantum transition probability of the quantum signal after error correction are taken as input parameters, and the enhancement driving signal is constructed through a quantum driving signal generation model; The quantum driving signal generation model consists of a quantum parameter mapping layer, an energy adaptation adjusting layer and a driving signal output layer, wherein the quantum parameter mapping layer performs dimensionless treatment on input quantum state energy, quantum state service life and quantum transition probability; the energy adaptation adjusting layer dynamically adjusts the value of the attenuation coefficient based on the energy difference value to enable the intensity of the driving signal to be adapted to the energy of the quantum signal after error correction; In which the amplitude of the drive signal is enhanced ; Wherein: Gain coefficients for the drive signal; The quantum transition probability is quantum state energy, quantum state service life and quantum transition probability; Is the attenuation coefficient; is the energy difference.
6. The quantum-computing communication signal enhancement system based on quantum error correction according to claim 1, wherein the cooperative modulation process of the modulation module comprises quantum state phase synchronization and signal strength superposition; The quantum state phase synchronization carries out phase consistency adjustment of the enhanced driving signal and the corrected quantum signal through quantum phase locking, wherein the phase synchronization precision is controlled in a preset phase deviation range; The signal intensity superposition is based on the quantum superposition principle, so that the enhanced quantum signal intensity meets the following conditions: ; wherein: To enhance the quantum signal intensity; the intensity of the quantum signal after error correction; to enhance the strength of the drive signal; Is the phase difference of the two signals; the quantum state stability of the quantum signal after the cooperative modulation is characterized by quantum state fidelity, and the fidelity limit is higher than a preset stability threshold.
7. The quantum-error-correction-based quantum computing communication signal enhancement system according to claim 1, wherein the transmission adaptation processing in the output module comprises bandwidth adaptation and transport format conversion of the quantum signal; The bandwidth adaptation adjusts the spectrum distribution of the enhanced quantum signal based on the quantum signal processing bandwidth of the receiving end, so that the signal spectrum falls within the processing bandwidth range of the receiving end, and the transmission format conversion converts the modulated enhanced quantum signal into a transmission format conforming to a quantum computing communication protocol.
8. The quantum computing communication signal enhancement system based on quantum error correction according to claim 1, wherein the acquisition module is interactively connected with the generation module through a wireless network, the generation module is interactively connected with the error correction module through the wireless network, the error correction module is interactively connected with the driving module through the wireless network, the driving module is interactively connected with the modulation module and the output module through the wireless network, and the modulation module is interactively connected with the output module.
9. A method for enhancing a quantum computing communication signal based on quantum error correction, the method being implemented in a quantum computing communication signal enhancing system based on quantum error correction as claimed in any one of claims 1 to 8, comprising: Capturing an original quantum signal in quantum computing communication, firstly normalizing the regular signal through a quantum state, and then adjusting transmission guide parameters according to quantum channel transmission characteristic parameters to enable signal output impedance and channel input impedance to meet preset matching requirements; constructing a feature vector set based on quantum state entropy, quantum coherence and quantum entanglement of quantum signals, and dynamically adjusting quantum bit arrangement and phase configuration of an error correction coding sequence according to a cooperative association relation among feature parameters; Constructing an entangled state of the generated error correction coding sequence and the noise-containing quantum signal, identifying a noise disturbance component based on quantum non-locality and performing reverse correction to enable the quantum state distortion degree of the error-corrected quantum signal to be in a preset allowed interval; Taking the quantum state energy, the quantum state service life and the quantum transition probability of the quantum signal after error correction as inputs, calculating the amplitude through a quantum driving signal generation model, and generating an enhanced driving signal which is in resonance matching with the quantum transition frequency of the signal; Performing phase synchronization calibration on the enhanced driving signal and the error-corrected quantum signal, and completing signal intensity superposition based on a quantum superposition principle, so that the quantum state fidelity of the enhanced quantum signal is higher than a preset stability threshold; And performing bandwidth adaptation and transmission format conversion on the modulated enhanced quantum signal, and transmitting the modulated enhanced quantum signal to a vector sub-calculation communication receiving end.

Description

Quantum computing communication signal enhancement method and system based on quantum error correction Technical Field The invention relates to the technical field of quantum communication, in particular to a quantum computing communication signal enhancement method and system based on quantum error correction. Background Quantum error correction is a key technology in the field of quantum computing, aiming at resisting interference of decoherence and environmental noise to quantum bits. Because of the quantum unclonable theorem, it does not rely on classical redundancy replication, but rather encodes logical qubits onto multiple physical qubits, locating errors and correcting by syndrome measurement. The invention patent application with the application number 202411263481.5 discloses a quantum invisible state transmission communication security enhancement method and a system based on Turbo codes, and aims to solve the problem that in actual hardware implementation, an invisible state transmission protocol can only effectively operate under the conditions of low noise level and no errors in classical and quantum transmission. Any error in the classical or quantum channel reduces the fidelity of the final transmitted quantum state. Invisible transmission has been widely considered for applications in the fields of secure communications, quantum networks, quantum repeaters, etc., and is also the basis for some conceptual applications in quantum information theory. However, research on practical invisible transmission schemes with error correction capability is still relatively deficient. However, in quantum computing communication, an original quantum signal is easily interfered by noise to generate quantum state distortion, and the signal strength and stability are insufficient, so that technical schemes for realizing signal distortion elimination and strength enhancement by means of error correction, modulation and the like are rarely available in the prior art. Therefore, we propose a quantum computing communication signal enhancement method and system based on quantum error correction Disclosure of Invention Aiming at the defects existing in the prior art, the invention provides a quantum computing communication signal enhancement method and a system based on quantum error correction, which can effectively solve the problems in the prior art. In order to achieve the above object, the present invention is achieved by the following technical scheme; the invention discloses a quantum computing communication signal enhancement system based on quantum error correction, which comprises: The system comprises an acquisition module, a generation module, an error correction module, a driving module, a modulation module, an output module and a vector calculation communication receiving end, wherein the acquisition module is used for capturing an original quantum signal generated in a quantum calculation communication process, carrying out preliminary regulation and transmission guiding pretreatment on the signal, the generation module is used for identifying quantum signal characteristics, constructing a self-adaptive quantum error correction coding sequence based on the quantum signal characteristics and enabling the error correction coding sequence to be matched and matched with the original signal; The acquisition module is interactively connected with the generation module through a wireless network, the generation module is interactively connected with the error correction module through the wireless network, the error correction module is interactively connected with the driving module through the wireless network, the driving module is interactively connected with the modulation module and the output module through the wireless network, and the modulation module is interactively connected with the output module. Further, the primary normalization processing of the original quantum signal in the acquisition module is quantum state normalization, and the quantum state normalization logic is as follows: ; wherein: is a normalized quantum state vector; a quantum state vector which is an original quantum signal; Is that Is a hermite conjugate vector of (2); Normalizing the compensation factor for the quantum state; The transmission guiding processing of the original quantum signal in the acquisition module obeys the transmission guiding parameter of the signal based on the transmission characteristic parameter of the quantum channel, so that the impedance characteristic of the original quantum signal and the transmission channel are matched. Furthermore, when the generation module identifies the characteristics of the quantum signal, a characteristic vector set is constructed through quantum state entropy, quantum coherence and quantum entanglement degree of the quantum signal, and an error correction coding sequence is dynamically generated based on the cooperative association relation of all quantum charact