Suppression of photon shot noise dephasing in a tunable coupling superconducting qubit
Quantum Information: quantum interference suppresses dephasing of qubits Scientists have realized a novel quantum device to improve the robustness of quantum information encoded in a qubit against noise. It is a well known difficulty in quantum information processing that the noise in the environmen...
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| Main Authors: | , , , |
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| Format: | article |
| Language: | EN |
| Published: |
Nature Portfolio
2017
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| Subjects: | |
| Online Access: | https://doaj.org/article/d61b5349d7ce49ec946805f9de74854f |
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| Summary: | Quantum Information: quantum interference suppresses dephasing of qubits Scientists have realized a novel quantum device to improve the robustness of quantum information encoded in a qubit against noise. It is a well known difficulty in quantum information processing that the noise in the environment disturbs the quantum state of a qubit and degrades the qubit's performance. Andrew Houck and colleagues at Princeton University have designed and implemented a superconducting qubit that utilizes the quantum interference effect to decouple itself from microwaves in a nearby cavity. The researchers demonstrate the robust preparation, manipulation and measurement of the qubit in the presence of noise. This approach provides a promising element for the storage and processing of quantum information, mitigating effects of cross-talk when trying to control or measure multiple qubits. |
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