Quantifying the performance of multipulse quantum sensing

Dong, Yang; Zhang, Shaochun; Lin, Hao-Bin; Chen, Xiangdong; Zhu, Wei; Wang, Guanzhong; Guo, Guang‐Can; Sun, Fang-Wen

doi:10.1103/physrevb.103.104104

Cited by 16 publications

(17 citation statements)

References 45 publications

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“…And benefiting from short quantum control time, the measurement sensitivity and bandwidth in the entanglement-enhanced phase estimation is improved significantly, which is far beyond the conventional estimation paradigm. It will be further applied in high-resolution nuclear magnetic resonance detection at the nanoscale [38,39,69,70]. Beyond the demonstration in our work, the B-NHQC protocol can be applied to other promising physical platforms, such as atoms, ions, transmon or flux qubits [51], for fast and high-fidelity QIP.…”

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confidence: 90%

“…However, the duration times of these geometric operations are still much longer than dynamical cases, especially for adiabatic geometric quantum computation (GQC) protocol, resulting in more decoherence degrading quantum states over time [25,27,30,[34][35][36][37]. Besides fighting decoherence [35,[38][39][40], long operation durations will severely reduce the detection sensitivity and bandwidth for quantum sensing based on full GQC. Usually, time optimal control (TOC) method can provide a useful toolbox to accelerate operations.…”

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confidence: 99%

“…The duration is only 24.6% of that with the NHQC scheme. We characterize the single-qubit B-NHQC gates through a standard quantum process tomography (QPT) method [39] on six specific geometric gates {I, X/2, X, Y /2, Y, T }, with an average fidelity of 0.984(4) [53]. The major contribution to the QPT infidelity comes from state preparation and detection errors [18,31,32,61].…”

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confidence: 99%

“…Here, average error bars levels are σ n S,N HQC = 0.044(4) and σ n S,B−N HQC = 0.031(3). Moreover, to comprehensively and systematically analyze the experimental results, the duration time of both protocols should be taken into consideration to discuss the measurement sensitivity [38,39,50]. The best measurement sensitivity is given by S = ∆ϕ min √ T t , where T t is the total measurement time.…”

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confidence: 99%

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Fast high-fidelity geometric quantum control with quantum brachistochrones

Yang¹,

Cao²,

Zheng³

et al. 2021

Preprint

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We experimentally demonstrate fast and high-fidelity geometric control of a quantum system with the most brachistochrone method on hybrid spin registers in diamond. Based on the time-optimal universal geometric control, single geometric gates with the fidelities over 99.2% on the spin state of nitrogen-vacancy center are realized with average durations shortened by 74.9%, comparing with conventional geometric method. The fidelity of the fast geometric two-qubit gate exceeds 96.5% on the hybrid spin registers. With these fast high-fidelity gates available, we implement quantum entanglement-enhanced phase estimation algorithm and demonstrate the Heisenberg quantum limit at room-temperature. By comparing with the conventional geometric circuit, the measurement bandwidth and sensitivity is enhanced by 3.5 and 2.9 times. Hence, our results show that highfidelity quantum control based on a fast geometric route will be a versatile tool for broad applications of quantum information processing in practice.

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confidence: 90%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Fast high-fidelity geometric quantum control with quantum brachistochrones

Yang¹,

Cao²,

Zheng³

et al. 2021

Preprint

Self Cite

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“…At present, most research on hemostatic materials made from natural polymers focuses on changing the composition and structure of the material, improving coagulation through the addition of other components, or increasing the specific surface area and number of interconnected pores to promote adsorption and aggregation of blood cells and platelets and thereby improve blood coagulation. 4 For example, Zhao created an injectable shape memory nanocomposite porous hydrogel that functioned as a hemostatic material by combining chitosan derivatives as the skeleton and carbon nanotubes as the fillers. These nanocomposite hydrogels were then used to stop bleeding in model injuries including mouse tail amputations and rabbit liver injuries.…”

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confidence: 99%

Gelatin/calcium chloride electrospun nanofibers for rapid hemostasis

Gao

et al. 2023

Biomater. Sci.

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Bioinspired Hemostatic and Anti‐Infective Armor for Wound Healing Assisted by Metal‐Phenol‐Polyamine System

Wei,

Zhang,

Mou

et al. 2023

Adv Funct Materials

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Hemostatic materials facilitate rapid hemostasis and significantly mitigate the potential of fatal hemorrhage in civilian and military traumas. However, most existing hemostatic materials are limited in material‐dependent forms and fail to integrate multifunctionality, thus constraining their versatility for differing settings and wound healing capacity. Herein, a facile, versatile armor strategy is proposed to endow various biomaterials with rapid hemostasis, infection prevention, and tissue healing capabilities. The armor is fabricated on the surface of substrates first through chemical cross‐linking of adhesive catechol (phenol) and collagen (polyamine) inspired by insect sclerotization, followed by zinc ions (Zn2+) chelation based on mussel‐inspired metal‐phenol coordination chemistry, referred to “metal‐phenol‐polyamine system”. This armor facilitates clot formation by promoting platelet aggregation and activating both intrinsic and extrinsic coagulation pathways. Moreover, the integrated Zn2+ endows the armor with potent antibacterial properties against both Gram‐positive and Gram‐negative bacteria. Consequently, this strategy armors a hemostatic sponge that effectively controls bleeding in rabbit hemorrhage models and successfully facilitates the complete healing of epidermal traumas in rats within 14 days. This metal‐phenol‐polyamine system‐assisted armor provides a potential and universal strategy for efficient hemostasis and wound healing.

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Quantifying the performance of multipulse quantum sensing

Cited by 16 publications

References 45 publications

Fast high-fidelity geometric quantum control with quantum brachistochrones

Fast high-fidelity geometric quantum control with quantum brachistochrones

Gelatin/calcium chloride electrospun nanofibers for rapid hemostasis

Bioinspired Hemostatic and Anti‐Infective Armor for Wound Healing Assisted by Metal‐Phenol‐Polyamine System

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