Scheme for encoding single logical qubit information into three-photon decoherence-free states assisted by quantum dots
- Authors
- Hong, Changho; Heo, Jino; Kang, Min-Sung; Jang, Jingak; Yang, Hyung-Jin
- Issue Date
- 7월-2019
- Publisher
- SPRINGER
- Keywords
- Single logical qubit information; Three-photon decoherence-free state; Quantum dot
- Citation
- QUANTUM INFORMATION PROCESSING, v.18, no.7
- Indexed
- SCIE
SCOPUS
- Journal Title
- QUANTUM INFORMATION PROCESSING
- Volume
- 18
- Number
- 7
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/64215
- DOI
- 10.1007/s11128-019-2315-5
- ISSN
- 1570-0755
- Abstract
- We propose an optical scheme to encode quantum information into three-photon decoherence-free states (single logical qubit information) and thereby acquire immunity from collective decoherence. Our scheme consists of quantum dots (QDs) within single-sided optical cavities and linearly optical devices for generation of three-photon decoherence-free states (logical qubits) and for encoding arbitrary quantum information. In our proposition, the interaction between photons and electron spin in the QD-cavity system is the critical component and plays the role of a quantum controlled operation to perform the processing of single logical qubit information with immunity against collective decoherence. Thus, we also analyze the performance of interaction between a photon and an electron in a QD. Consequently, for generating three-photon decoherence-free state encoded arbitrary quantum information, our scheme using QD-cavity systems is feasible. In practice, it could be implemented experimentally with current technologies.
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Collections - College of Science and Technology > Semiconductor Physics in Division of Display and Semiconductor Physics > 1. Journal Articles
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