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- Title
Automated error correction in IBM quantum computer and explicit generalization.
- Authors
Ghosh, Debjit; Agarwal, Pratik; Pandey, Pratyush; Behera, Bikash K.; Panigrahi, Prasanta K.
- Abstract
Construction of a fault-tolerant quantum computer remains a challenging problem due to unavoidable noise and fragile quantum states. However, this goal can be achieved by introducing quantum error-correcting codes. Here, we experimentally realize an automated error correction code and demonstrate the nondestructive discrimination of GHZ states in IBM 5-qubit quantum computer. After performing quantum state tomography, we obtain the experimental results with a high fidelity. Finally, we generalize the investigated code for maximally entangled n-qudit case, which could both detect and automatically correct any arbitrary phase-change error, or any phase-flip error, or any bit-flip error, or combined error of all types of error.
- Subjects
QUANTUM computers; IBM computers; QUANTUM error correcting codes; TOMOGRAPHY; COMPUTER algorithms; COMPUTER engineering
- Publication
Quantum Information Processing, 2018, Vol 17, Issue 6, p1
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-018-1920-z