Experimental Protection of the Spin Coherence of a Molecular Qubit Exceeding a Millisecond
Molecular qubits are promising as they can benefit from tailoring and versatile design of chemistry. It is essential to reduce the decoherence of molecular qubits caused by their interactions with the environment. Herein the dynamical decoupling (DD) technique is utilized to combat such decoherence....
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| Veröffentlicht in: | Chinese physics letters 2021-03, Vol.38 (3), p.30303-中插10, Article 030303 |
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| container_end_page | 中插10 |
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| container_title | Chinese physics letters |
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| creator | Dai, Yingqiu Fu, Yue Shi, Zhifu Qin, Xi Mu, Shiwei Wu, Yang Su, Ji-Hu Deng, Yi-Fei Qin, Lei Zhai, Yuan-Qi Zheng, Yan-Zhen Rong, Xing Du, Jiangfeng |
| description | Molecular qubits are promising as they can benefit from tailoring and versatile design of chemistry. It is essential to reduce the decoherence of molecular qubits caused by their interactions with the environment. Herein the dynamical decoupling (DD) technique is utilized to combat such decoherence. The coherence time for a transition-metal complex (PPh4)(2)[Cu(mnt)(2)] is prolonged from 6.8 mu s to 1.4 ms. The ratio of the coherence time and the length of pi/2 pulse, defined as the single qubit figure of merit (Q(M)), reaches 1.4 x 10(5), which is 40 times greater than what previously reported for this molecule. Our results show that molecular qubits, with milliseconds coherence time, are promising candidates for quantum information processing. |
| doi_str_mv | 10.1088/0256-307X/38/3/030303 |
| format | Article |
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It is essential to reduce the decoherence of molecular qubits caused by their interactions with the environment. Herein the dynamical decoupling (DD) technique is utilized to combat such decoherence. The coherence time for a transition-metal complex (PPh4)(2)[Cu(mnt)(2)] is prolonged from 6.8 mu s to 1.4 ms. The ratio of the coherence time and the length of pi/2 pulse, defined as the single qubit figure of merit (Q(M)), reaches 1.4 x 10(5), which is 40 times greater than what previously reported for this molecule. 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It is essential to reduce the decoherence of molecular qubits caused by their interactions with the environment. Herein the dynamical decoupling (DD) technique is utilized to combat such decoherence. The coherence time for a transition-metal complex (PPh4)(2)[Cu(mnt)(2)] is prolonged from 6.8 mu s to 1.4 ms. The ratio of the coherence time and the length of pi/2 pulse, defined as the single qubit figure of merit (Q(M)), reaches 1.4 x 10(5), which is 40 times greater than what previously reported for this molecule. 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| source | IOP Publishing Journals; Web of Science - Science Citation Index Expanded - 2021<img src="https://exlibris-pub.s3.amazonaws.com/fromwos-v2.jpg" />; Institute of Physics (IOP) Journals - HEAL-Link; Alma/SFX Local Collection |
| subjects | Physical Sciences Physics Physics, Multidisciplinary Science & Technology |
| title | Experimental Protection of the Spin Coherence of a Molecular Qubit Exceeding a Millisecond |
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