Back to Search
Start Over
Dynamic-Disorder-Induced Enhancement of Entanglement in Photonic Quantum Walks
- Publication Year :
- 2018
- Publisher :
- arXiv, 2018.
-
Abstract
- Entanglement generation in discrete time quantum walks is deemed to be another key property beyond the transport behaviors. The latter has been widely used in investigating the localization or topology in quantum walks. However, there are few experiments involving the former for the challenges in full reconstruction of the final wave function. Here, we report an experiment demonstrating the enhancement of the entanglement in quantum walks using dynamic disorder. Through reconstructing the local spinor state for each site, von Neumann entropy can be obtained and used to quantify the coin-position entanglement. We find that the enhanced entanglement in the dynamically disordered quantum walks is independent of the initial state, which is different from the entanglement generation in the Hadamard quantum walks. Our results are inspirational for achieving quantum computing based on quantum walks.<br />Comment: 18 pages, 6 figures. arXiv admin note: text overlap with arXiv:1808.09278
- Subjects :
- Physics
Quantum Physics
Spinor
FOS: Physical sciences
02 engineering and technology
Quantum entanglement
Von Neumann entropy
Quantum key distribution
021001 nanoscience & nanotechnology
01 natural sciences
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
0103 physical sciences
Quantum walk
Statistical physics
Quantum information
010306 general physics
0210 nano-technology
Wave function
Quantum Physics (quant-ph)
Quantum computer
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....dc496d5dac670fb2a618b20ebabba6fd
- Full Text :
- https://doi.org/10.48550/arxiv.1808.09298