Nontraditional Deterministic Remote State Preparation Using a Non-Maximally Entangled Channel without Additional Quantum Resources

• Published in: Entropy (Basel, Switzerland) Vol. 25; no. 5; p. 768
• Main Authors: Xin, Xuanxuan, He, Shiwen, Li, Yongxing, Li, Chong
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 08.05.2023; MDPI
• Subjects: Atoms; Coding; Communication; Computer network protocols; deterministic remote state preparation; Entangled states; Measurement methods; non-maximally entangled channels; Protocol; quantum communication; Statistical analysis; Success; non-maximally entangled channels; quantum communication; deterministic remote state preparation
• ISSN: 1099-4300; 1099-4300
• DOI: 10.3390/e25050768

In this paper, we have reinvestigated probabilistic quantum communication protocols and developed a nontraditional remote state preparation protocol that allows for deterministically transferring information encoded in quantum states using a non-maximally entangled channel. With an auxiliary particle and a simple measurement method, the success probability of preparing a d-dimensional quantum state is increased to 1 without spending additional quantum resources in advance to improve quantum channels, such as entanglement purification. Furthermore, we have designed a feasible experimental scheme to demonstrate the deterministic paradigm of transporting a polarization-encoded photon from one location to another using a generalized entangled state. This approach provides a practical method to address decoherence and environmental noises in actual quantum communication.