Magnetic field noise analyses generated by the interactions between a nitrogen vacancy center diamond and surface and bulk impurities

Chrostoski, Philip; Barrios, Bruce; Santamore, D. H.

doi:10.1016/j.physb.2020.412767

Cited by 7 publications

(5 citation statements)

References 52 publications

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“…Specifically, solid materials are good at the high-frequency ranges and a smaller exponent of the power law is generally observed in the liquid materials [ 118 ]. The flat region at the low-frequency regime in the PSD is attributed to dipole–dipole interactions, and the magnetic field noise is studied with a view of the surface and bulk impurity interactions based on the PSDs [ 143 ]. Overall, the spin qubits from the QD and color center platforms undergo various noise sources from the noises on the surface or in bulk materials, which are easily detected and examined with PSDs in the low-frequency regime while the systems are controlled by high-frequency microwaves or lasers.…”

Section: Solid-state Spin-qubit Quantum Systemsmentioning

confidence: 99%

Material-Inherent Noise Sources in Quantum Information Architecture

Yang

Kim

2023

Materials

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NISQ is a representative keyword at present as an acronym for “noisy intermediate-scale quantum”, which identifies the current era of quantum information processing (QIP) technologies. QIP science and technologies aim to accomplish unprecedented performance in computation, communications, simulations, and sensing by exploiting the infinite capacity of parallelism, coherence, and entanglement as governing quantum mechanical principles. For the last several decades, quantum computing has reached to the technology readiness level 5, where components are integrated to build mid-sized commercial products. While this is a celebrated and triumphant achievement, we are still a great distance away from quantum-superior, fault-tolerant architecture. To reach this goal, we need to harness technologies that recognize undesirable factors to lower fidelity and induce errors from various sources of noise with controllable correction capabilities. This review surveys noisy processes arising from materials upon which several quantum architectures have been constructed, and it summarizes leading research activities in searching for origins of noise and noise reduction methods to build advanced, large-scale quantum technologies in the near future.

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Section: Solid-state Spin-qubit Quantum Systemsmentioning

confidence: 99%

Material-Inherent Noise Sources in Quantum Information Architecture

Yang

Kim

2023

Materials

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“…30 Deleterious spin impurities occurring in the bulk crystal, such as substitutional nitrogen (P1) centers, 216 can be limited through use of ultra-pure diamond substrates; however, the surface is always problematic, regardless of substrate purity. Indeed, surface spins may generate considerable magnetic noise through spin flips and precession, 217,218 leading to a reduction in NV-center T 1 and T 2 via dipole–dipole coupling. In both bulk materials 78,92,219–224 and nanodiamonds, 225–229 this magnetic noise may arise from surface nuclear spins, unpaired electrons in dangling bonds, surface adatoms, and molecular adsorbates.…”

Section: Surface Influence On Nv Center Stabilitymentioning

confidence: 99%

Diamond surface engineering for molecular sensing with nitrogen—vacancy centers

et al. 2022

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“…The longitudinal spin-lattice relaxation time T 1 is prone to a high frequency (~GHz) magnetic noise (i.e., a randomly fluctuating magnetic field with zero average) originating close to the NV center inside the diamond due to bulk impurities 27 , at the interface due to surface impurities and defects 28 , 29 or outside the diamond due to paramagnetic Mn 2+ 30 , 31 , Gd 3+ 32 or Fe 3+ 33 ions present on or close to the surface. Positively charged ions such as Mn 2+ are electrostatically attracted by negatively charged DNA/RNA backbone phosphate groups and are adsorbed by negatively charged diamond surface 30 .…”

Section: Introductionmentioning

confidence: 99%

Quantum sensing of microRNAs with nitrogen-vacancy centers in diamond

Zalieckas,

Greve,

Bellucci

et al. 2024

Commun Chem

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Label-free detection of nucleic acids such as microRNAs holds great potential for early diagnostics of various types of cancers. Measuring intrinsic biomolecular charge using methods based on field effect has been a promising way to accomplish label-free detection. However, the charges of biomolecules are screened by counter ions in solutions over a short distance (Debye length), thereby limiting the sensitivity of these methods. Here, we measure the intrinsic magnetic noise of paramagnetic counter ions, such as Mn2+, interacting with microRNAs using nitrogen-vacancy (NV) centers in diamond. All-atom molecular dynamics simulations show that microRNA interacts with the diamond surface resulting in excess accumulation of Mn ions and stronger magnetic noise. We confirm this prediction by observing an increase in spin relaxation contrast of the NV centers, indicating higher Mn2+ local concentration. This opens new possibilities for next-generation quantum sensing of charged biomolecules, overcoming limitations due to the Debye screening.

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Magnetic field noise analyses generated by the interactions between a nitrogen vacancy center diamond and surface and bulk impurities

Cited by 7 publications

References 52 publications

Material-Inherent Noise Sources in Quantum Information Architecture

Material-Inherent Noise Sources in Quantum Information Architecture

Diamond surface engineering for molecular sensing with nitrogen—vacancy centers

Quantum sensing of microRNAs with nitrogen-vacancy centers in diamond

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