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Journal Article
Multilayered logical qubits and synthesized quantum bits
- Authors
- Ki-Sung Jin, Gyu-Il Cha
- Issue Date
- 2023-07
- Citation
- QUANTUM SCIENCE AND TECHNOLOGY, v.8, no.3, pp.1-21
- ISSN
- 2058-9565
- Publisher
- IOP PUBLISHING LTD
- Language
- English
- Type
- Journal Article
- Abstract
- Quantum error correction is likely to be key in obtaining near term quantum advantage. We propose a novel method for providing multiple logical qubits in the correction of quantum errors using classical computers. The core idea of our work is built upon two main pillars: dividing the Hilbert space into reduced Hilbert spaces with individual logical qubits and synthesizing the reduced Hilbert spaces through a mathematical collaborating between classical bits and logical quantum states. We demonstrate that our method supports at least 20 logical qubits in a surface code with a code distance of 3. Furthermore, we generate entangled states of multiple logical qubits from lattice surgery-based surface codes using only physical qubit operations. This approach enables classical computers to support a larger number of logical qubits using less memory and perform faster simulations.
- KSP Keywords
- Code distance, Entangled states, Hilbert spaces, Quantum Error Correction, Quantum bit, Quantum states, novel method
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
