Abstract: Provided is a quantum imaging device. The device includes a first light source configured to generate first light, a first photon pair generation part configured to generate a first entangled photon pair using the first light, a first beam splitter configured to separate the first entangled photon pair into a first signal idler and a first signal line, a first detector configured to receive the first signal idler, a first mirror configured to provide the first signal line to a target, a second detector configured to receive the first signal line transmitted or reflected to the target, and a signal processor connected to the first and second detectors and configured to obtain a target image by comparing a measurement image with a reference image.

Abstract: Provided is a method of simulating a quantum computing system having an error correction function. The method includes generating a quantum information density matrix, generating a coded density matrix by performing quantum error correction coding on the quantum information density matrix, applying quantum computing to the coded density matrix and calculating a change in a first reliability of the coded density matrix, applying the quantum computing to the quantum information density matrix and calculating a change in a second reliability of the quantum information density matrix, and determining an operation time of the quantum computing, based on the change in the first reliability and the change in the second reliability.

Abstract: Disclosed is a quantum computing system including an input processing unit that performs a quantum dot qubit-based quantum computing operation based on a user input algorithm and input data including information for controlling an operation, and converts the user input algorithm into a gate-based transformation algorithm, an algorithm decomposition unit that generates an equivalent circuit corresponding to the transformation algorithm, a quantum circuit mapping unit that generates a modified equivalent circuit by rearranging qubits constituting the equivalent circuit, a driving signal generation unit that generates a driving signal for controlling the modified equivalent circuit, a computing execution unit that performs the quantum computing operation by applying the driving signal to the modified equivalent circuit and generates computing data, and an output unit that converts the computing data into logical data and outputs the logical data as result data.

Abstract: Provided is a method of simulating a quantum computing system having an error correction function. The method includes generating a quantum information density matrix, generating a coded density matrix by performing quantum error correction coding on the quantum information density matrix, applying quantum computing to the coded density matrix and calculating a change in a first reliability of the coded density matrix, applying the quantum computing to the quantum information density matrix and calculating a change in a second reliability of the quantum information density matrix, and determining an operation time of the quantum computing, based on the change in the first reliability and the change in the second reliability.