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학술대회 Optimal Estimation of Entangled States in Classical Quantum Simulator
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진기성, 차규일
International Conference on Information and Communication Technology Convergence (ICTC) 2022, pp.1683-1688
22HS4700, 결함허용 논리양자큐빗 컴퓨팅 환경을 제공하는 양자운영체제 원천기술 개발, 차규일
Estimating the entanglement of qubits without measurement is a critical problem in quantum computing. Quantum algorithms using many qubits entail a substantial computational load as the quantum state increases exponentially. A mathematical tool like Schmidt's decomposition is virtually impossible to apply directly to such an algorithm. We propose a novel method for estimating entanglement states more precisely and quickly without measurement using a classical state vector quantum simulator. The fundamental principle of our idea is to project the state of the desired qubit from the entire quantum state into classical bits. Our concept can work independently of the exponential problem in classical quantum computers, ensuring faster-estimating entanglement relationships with fewer computing resources. In this paper, we present the verification results of our ideas using QPlayer, a special-purpose classical quantum simulator.
KSP 제안 키워드
Computing resources, Entangled state, Entanglement states, Fundamental principle, Optimal Estimation, Quantum computing, Quantum simulator, Quantum states, State vector, computational load, novel method