Decoherence of multipartite entanglement states under amplitude-damping environment in non-inertial frames
| Autor: | Myong Chol Pak, Kwang-Il Kim, Tae-Hyok Kim |
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| Rok vydání: | 2020 |
| Předmět: |
Quantum optics
Physics Quantum decoherence Inertial frame of reference 010308 nuclear & particles physics Quantum Physics Quantum entanglement 01 natural sciences Multipartite entanglement Sudden death Atomic and Molecular Physics and Optics Greenberger–Horne–Zeilinger state Qubit Quantum mechanics 0103 physical sciences 010306 general physics |
| Zdroj: | The European Physical Journal D. 74 |
| ISSN: | 1434-6079 1434-6060 |
| DOI: | 10.1140/epjd/e2020-10098-3 |
| Popis: | In this paper, we investigate the decoherence of two-qubit state under amplitude-damping channel in non-inertial frames and find some results differ from those of previous study. In case of only Bob’s qubit undergoing decoherence, the entanglement sudden death (ESD) does not appear for any acceleration parameter. By using three-tangle τ we also investigate decoherence of GHZ state under amplitude-damping channel in non-inertial frames. In this case we find that the ESD never appears even though all qubits are under amplitude-damping channel. Our work will further enrich the results of decoherence of multipartite entanglement in non-inertial frames. |
| Databáze: | OpenAIRE |
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