Effect of noise on deterministic joint remote preparation of an arbitrary two-qubit state
| Autor: | Zhiguo Qu, Wei Wang, Ming-Ming Wang, Jin-Guang Chen |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
business.industry
Computer science Quantum noise Statistical and Nonlinear Physics Topology 01 natural sciences 010305 fluids & plasmas Theoretical Computer Science Electronic Optical and Magnetic Materials Noise Secure communication Quantum error correction Quantum state Modeling and Simulation Qubit 0103 physical sciences Signal Processing Electrical and Electronic Engineering 010306 general physics business Quantum information science Quantum computer |
| Zdroj: | Quantum Information Processing. 16 |
| ISSN: | 1573-1332 1570-0755 |
| Popis: | Quantum communication has attracted much attention in recent years. Deterministic joint remote state preparation (DJRSP) is an important branch of quantum secure communication which could securely transmit a quantum state with 100% success probability. In this paper, we study DJRSP of an arbitrary two-qubit state in noisy environment. Taking a GHZ based DJRSP scheme of a two-qubit state as an example, we study how the scheme is influenced by all types of noise usually encountered in real-world implementations of quantum communication protocols, i.e., the bit-flip, phase-flip (phase-damping), depolarizing, and amplitude-damping noise. We demonstrate that there are four different output states in the amplitude-damping noise, while there is the same output state in each of the other three types of noise. The state-independent average fidelity is presented to measure the effect of noise, and it is shown that the depolarizing noise has the worst effect on the DJRSP scheme, while the amplitude-damping noise or the phase-flip has the slightest effect depending on the noise rate. Our results are also suitable for JRSP and RSP. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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