AI Article Synopsis
- To ensure reliable quantum information processing, it's crucial to protect quantum gates and qubits from decoherence.
- By using a continuous-wave dynamical decoupling method, researchers experimentally increased coherence time by about 20 times and safeguarded quantum gates during control periods.
- This approach allows for longer coherence while integrating well with quantum logic operations, making it valuable for tasks that extend beyond typical dephasing times.
Article Abstract
In order to achieve reliable quantum-information processing results, we need to protect quantum gates along with the qubits from decoherence. Here we demonstrate experimentally on a nitrogen-vacancy system that by using a continuous-wave dynamical decoupling method, we might not only prolong the coherence time by about 20 times but also protect the quantum gates for the duration of the controlling time. This protocol shares the merits of retaining the superiority of prolonging the coherence time and at the same time easily combining with quantum logic tasks. This method can be useful in tasks where the duration of quantum controlling exceeds far beyond the dephasing time.
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| http://dx.doi.org/10.1103/PhysRevLett.109.070502 | DOI Listing |
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