| Autor: |
Kevin C. Cox, Przemyslaw Bienias, David H. Meyer, Donald P. Fahey, Paul D. Kunz, Alexey V. Gorshkov |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Physical Review Research, Vol 4, Iss 3, p 033149 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2643-1564 |
| DOI: |
10.1103/PhysRevResearch.4.033149 |
| Popis: |
We present a method for network-capable quantum computing that relies on holographic spin-wave excitations stored collectively in ensembles of qubits. We construct an orthogonal basis of spin waves in a one-dimensional array and show that high-fidelity universal linear controllability can be achieved using only phase shifts, applied in both momentum and position space. Neither single-site addressability nor high single-qubit cooperativity is required, and the spin waves can be read out with high efficiency into a single cavity mode for quantum computing and networking applications. We describe how to establish linear quantum processing using a lambda scheme in a rubidium-atom system and calculate the expected experimental operational fidelities due to fundamental and technical errors. We derive efficient methods to achieve linear controllability in both a single-ensemble and dual-ensemble configuration. Finally, we propose to use the spin-wave processor for continuous-variable quantum information processing and present a scheme to generate large dual-rail cluster states useful for deterministic computing. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
