Catching time-reversed microwave coherent state photons with 99.4% absorption efficiency
| Autor: | Wenner, J, Yin, Y, Chen, Y, Barends, R, Chiaro, B, Jeffrey, E, Kelly, J, Megrant, A, Mutus, JY, Neill, C, O'Malley, PJJ, Roushan, P, Sank, D, Vainsencher, A, White, TC, Korotkov, AN, Cleland, AN, Martinis, JM |
|---|---|
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Physical Review Letters, vol 112, iss 21 Wenner, J; Yin, Y; Chen, Y; Barends, R; Chiaro, B; Jeffrey, E; et al.(2014). Catching time-reversed microwave coherent state photons with 99.4% absorption efficiency. Physical Review Letters, 112(21). doi: 10.1103/PhysRevLett.112.210501. UC Riverside: Retrieved from: http://www.escholarship.org/uc/item/9dj8w6kd |
| DOI: | 10.1103/PhysRevLett.112.210501. |
| Popis: | We demonstrate a high-efficiency deterministic quantum receiver to convert flying qubits to stationary qubits. We employ a superconducting resonator, which is driven with a shaped pulse through an adjustable coupler. For the ideal "time-reversed" shape, we measure absorption and receiver fidelities at the single microwave photon level of, respectively, 99.41% and 97.4%. These fidelities are comparable with gates and measurement and exceed the deterministic quantum communication and computation fault-tolerant thresholds, enabling new designs of deterministic qubit interconnects and hybrid quantum computers. © 2014 American Physical Society. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|