Patent ID: 11863989
Assignee: AHP-TECH INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 5:
6. A method for resisting quantum perturbation threats to quantum communication devices, the method comprising the following processes:
a) deriving a harmonic oscillator to be simulated in an optical-resonant cavity based on a combination of observed phases via sensing a frequency spectrum in a local environment for wireless or optical communication;
b) deriving simulated wave functions via means of Hamiltonian operations according to the derived harmonic oscillator that facilitates finding possible exception points in a non-Hermitian local system;
c) performing spectral analysis to discard the exception point which is occurred with zero-point energy so as to determine whether there is a quantum symmetry attribute broken in a local system;
d) detecting tiny variation of gravity via leveraging microelectromechanical system (MEMS) after determining that there is a quantum symmetry attribute broken in the local system;
e) detecting slow-light phenomenon via leveraging a Fourier analyzer to monitor group velocity of optical pulses in a local environment around a quantum computing device if a tiny variation of gravity is detected;
f) estimating phases through means of inverse quantum Fourier transform (QFT) for the derived system wave function simulated in a non-Hermitian local system if a slow-light phenomenon is detected;
g) setting up various scales based on the estimated phases for monitoring multiscale entropy and then analyzing the slope of an approximative multiscale entropy in a non-Hermitian local system to facilitate detecting an abnormal reduction of multiscale entropy in a non-Hermitian local system during a specific period;
h) determining that there is a candidate quantum perturbation threat performed to a quantum communication device based on the detection results of broken quantum symmetry attribute, slow-light phenomenon with tiny gravity variation, and abnormal reduction of multiscale entropy in a non-Hermitian local system; and
i) performing a mechanism of bias correction on the quantum computing device via leveraging First order corrections of time-independent perturbation theory after determining that there is a quantum perturbation threat to quantum communication devices.