dorsal/arxiv
View SchemaQuantum quincunx in cavity quantum electrodynamics
| Authors | Barry C. Sanders, Stephen D. Bartlett, Ben Tregenna, Peter L. Knight |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0207028 |
| URL | https://arxiv.org/abs/quant-ph/0207028 |
| DOI | 10.1103/PhysRevA.67.042305 |
| Journal | Phys. Rev. A 67, 042305 (2003) |
Abstract
We introduce the quantum quincunx, which physically demonstrates the quantum walk and is analogous to Galton's quincunx for demonstrating the random walk. In contradistinction to the theoretical studies of quantum walks over orthogonal lattice states, we introduce quantum walks over nonorthogonal lattice states (specifically, coherent states on a circle) to demonstrate that the key features of a quantum walk are observable albeit for strict parameter ranges. A quantum quincunx may be realized with current cavity quantum electrodynamics capabilities, and precise control over decoherence in such experiments allows a remarkable decrease in the position noise, or spread, with increasing decoherence.
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"abstract": "We introduce the quantum quincunx, which physically demonstrates the quantum\nwalk and is analogous to Galton\u0027s quincunx for demonstrating the random walk.\nIn contradistinction to the theoretical studies of quantum walks over\northogonal lattice states, we introduce quantum walks over nonorthogonal\nlattice states (specifically, coherent states on a circle) to demonstrate that\nthe key features of a quantum walk are observable albeit for strict parameter\nranges. A quantum quincunx may be realized with current cavity quantum\nelectrodynamics capabilities, and precise control over decoherence in such\nexperiments allows a remarkable decrease in the position noise, or spread, with\nincreasing decoherence.",
"arxiv_id": "quant-ph/0207028",
"authors": [
"Barry C. Sanders",
"Stephen D. Bartlett",
"Ben Tregenna",
"Peter L. Knight"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.67.042305",
"journal_ref": "Phys. Rev. A 67, 042305 (2003)",
"title": "Quantum quincunx in cavity quantum electrodynamics",
"url": "https://arxiv.org/abs/quant-ph/0207028"
},
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