Nir Bar‐Gill
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View article: Quantum Imaging of Ferromagnetic van der Waals Magnetic Domain Structures at Ambient Conditions
Quantum Imaging of Ferromagnetic van der Waals Magnetic Domain Structures at Ambient Conditions Open
Recently discovered 2D van der Waals magnetic materials, and specifically iron-germanium-telluride (Fe5GeTe2), have attracted significant attention both from a fundamental perspective and for potential applications. Key open questions conc…
View article: Low-field all-optical detection of superconductivity using NV nanodiamonds
Low-field all-optical detection of superconductivity using NV nanodiamonds Open
Nitrogen-vacancy centers in nanodiamond offer a microwave-free, noninvasive platform for probing superconductors via near zero-field cross-relaxation magnetometry. We demonstrate this by depositing nanodiamonds on YBCO thin films to measur…
View article: Quantum Co-Magnetometer Using Diamond Nitrogen-Vacancy Centers and Rubidium Cells
Quantum Co-Magnetometer Using Diamond Nitrogen-Vacancy Centers and Rubidium Cells Open
Recent advances in chip scale magnetic quantum sensing have produced platforms that pair unprecedented sensitivity with extreme miniaturization. Here, we demonstrate a hybrid quantum sensor by combining Nitrogen-Vacancy (NV) centers in dia…
View article: Quantum Diamond Microscopy of Individual Vaterite Microspheres Containing Magnetite Nanoparticles
Quantum Diamond Microscopy of Individual Vaterite Microspheres Containing Magnetite Nanoparticles Open
Biocompatible vaterite microspheres, renowned for their porous structure, are promising carriers for magnetic nanoparticles (MNPs) in biomedical applications such as targeted drug delivery and diagnostic imaging. Precise control over the m…
View article: Machine-learning based high-bandwidth magnetic sensing
Machine-learning based high-bandwidth magnetic sensing Open
Recent years have seen significant growth of quantum technologies, and specifically quantum sensing, both in terms of the capabilities of advanced platforms and their applications. One of the leading platforms in this context is nitrogen-v…
View article: Machine-learning based high-bandwidth magnetic sensing
Machine-learning based high-bandwidth magnetic sensing Open
Recent years have seen significant growth of quantum technologies, and specifically quantum sensing, both in terms of the capabilities of advanced platforms and their applications. One of the leading platforms in this context is nitrogen-v…
View article: Compressed sensing enabled high-bandwidth and large dynamic range magnetic sensing
Compressed sensing enabled high-bandwidth and large dynamic range magnetic sensing Open
Electron Spin Resonance (ESR) is a widely common method in the field of quantum sensing. Specifically with the Nitrogen-Vacancy (NV) center in diamond, used for sensing magnetic and electric fields, strain and temperature. However, ESR mea…
View article: Nonlinear Broadband THz Generation from NV Centers in Bulk Diamond Crystals
Nonlinear Broadband THz Generation from NV Centers in Bulk Diamond Crystals Open
Diamond single crystals are promising nonlinear THz sources due to their high damage threshold, transparency, and small dispersion linear dispersion over THz-NIR which enables relaxing the need for additional phase-matching engineering . H…
View article: Dephasing in the central spin problem with long-range Ising spin-bath coupling
Dephasing in the central spin problem with long-range Ising spin-bath coupling Open
The study of coherence dynamics in open quantum systems, specifically addressing various physical realizations of quantum systems and environments, is a long-standing and central pillar of quantum science and technology. As such, a large b…
View article: Bath-induced interactions and transient dynamics in open quantum systems at strong coupling: Effective Hamiltonian approach
Bath-induced interactions and transient dynamics in open quantum systems at strong coupling: Effective Hamiltonian approach Open
Understanding the dynamics of dissipative quantum systems, particularly beyond the weak coupling approximation, is central to various quantum applications. While numerically exact methods provide accurate solutions, they often lack the ana…
View article: Realization of robust quantum noise characterization in the presence of coherent errors
Realization of robust quantum noise characterization in the presence of coherent errors Open
Complex quantum systems and their various applications are susceptible to noise of coherent and incoherent nature. Characterization of noise and its sources is an open, key challenge in quantum technology applications, especially in terms …
View article: Realization of robust quantum noise characterization in the presence of coherent errors
Realization of robust quantum noise characterization in the presence of coherent errors Open
Complex quantum systems and their various applications are susceptible to noise of coherent and incoherent nature. Characterization of noise and its sources is an open, key challenge in quantum technology applications, especially in terms …
View article: Creation of Boron Vacancies in Hexagonal Boron Nitride Exfoliated from Bulk Crystals for Quantum Sensing
Creation of Boron Vacancies in Hexagonal Boron Nitride Exfoliated from Bulk Crystals for Quantum Sensing Open
Boron vacancies (VB-) in hexagonal boron -nitride (hBN) have sparked great interest in recent years due to their optical and spin properties. Since hBN can be readily integrated into devices where it interfaces a huge variety of other 2D m…
View article: Modified Split Ring Resonators for Efficient and Homogeneous Microwave Control of Large Volume Spin Ensembles
Modified Split Ring Resonators for Efficient and Homogeneous Microwave Control of Large Volume Spin Ensembles Open
Quantum sensing using local defects in solid-state systems has gained significant attention over the past several years, with impressive results demonstrated both in Academia and in Industry. Specifically, employing large volume and high d…
View article: Nitrogen-Vacancy Singlet-Manifold Ionization Energy
Nitrogen-Vacancy Singlet-Manifold Ionization Energy Open
The singlet states of the negatively charged nitrogen-vacancy centers in diamond play a key role in itsoptical spin control and readout. In this work, the hitherto unknown ionization energy of the singlet ismeasured experimentally and foun…
View article: Ultrafast Coherent Delocalization Revealed in Multilayer QDs under a Chiral Potential
Ultrafast Coherent Delocalization Revealed in Multilayer QDs under a Chiral Potential Open
In recent years, it was found that current passing through chiral molecules exhibits spin preference, an effect known as Chiral Induced Spin Selectivity (CISS). The effect also enables the reduction of scattering and therefore enhances del…
View article: ML-based magnetic sensing scan data
ML-based magnetic sensing scan data Open
Experimental data sets of NV ODMR scans for training ML models.
View article: ML-based magnetic sensing scan data
ML-based magnetic sensing scan data Open
Experimental data sets of NV ODMR scans for training ML models.
View article: Theory of Chirality Induced Spin Selectivity: Progress and Challenges
Theory of Chirality Induced Spin Selectivity: Progress and Challenges Open
A critical overview of the theory of the chirality‐induced spin selectivity (CISS) effect, that is, phenomena in which the chirality of molecular species imparts significant spin selectivity to various electron processes, is provided. Base…
View article: Finding the nitrogen-vacancy singlet manifold energy level using charge-conversion pulse sequences
Finding the nitrogen-vacancy singlet manifold energy level using charge-conversion pulse sequences Open
The vast research conducted on Nitrogen-Vacancy (NV) centers in diamond in recent years opened the door for a wide range of NV based applications. However, some properties of the NV center dynamics and energy levels remain unknown. In this…
View article: Theory of Chirality Induced Spin Selectivity: Progress and Challenges
Theory of Chirality Induced Spin Selectivity: Progress and Challenges Open
We provide a critical overview of the theory of the chirality-induced spin selectivity (CISS) effect, i.e., phenomena in which the chirality of molecular species imparts significant spin selectivity to various electron processes. Based on …
View article: High-Sensitivity, High-Resolution Detection of Reactive Oxygen Species Concentration Using NV Centers
High-Sensitivity, High-Resolution Detection of Reactive Oxygen Species Concentration Using NV Centers Open
Nitrogen-vacancy (NV) color centers in diamond have been demonstrated as useful magnetic sensors, in particular for measuring spin fluctuations, achieving high sensitivity and spatial resolution. These abilities can be used to explore vari…
View article: High-Sensitivity, High-Resolution Detection of Reactive\nOxygen Species Concentration Using NV Centers
High-Sensitivity, High-Resolution Detection of Reactive\nOxygen Species Concentration Using NV Centers Open
Nitrogen-vacancy\n(NV) color centers in diamond have been demonstrated\nas useful magnetic sensors, in particular for measuring spin fluctuations\nand achieving high sensitivity and spatial resolution. These abilities\ncan be used to explo…
View article: Long-Time-Scale Magnetization Ordering Induced by an Adsorbed Chiral Monolayer on Ferromagnets
Long-Time-Scale Magnetization Ordering Induced by an Adsorbed Chiral Monolayer on Ferromagnets Open
When an electron passes through a chiral molecule, there is a high probability for correlation between the momentum and spin of the charge, thus leading to a spin polarized current. This phenomenon is known as the chiral-induced spin selec…
View article: Decoherence of ensembles of nitrogen-vacancy centers in diamond
Decoherence of ensembles of nitrogen-vacancy centers in diamond Open
We present a combined theoretical and experimental study of solid-state spin\ndecoherence in an electronic spin bath, focusing specifically on ensembles of\nnitrogen vacancy (NV) color centers in diamond and the associated\nsubstitutional …
View article: Efficient and robust signal sensing by sequences of adiabatic chirped pulses
Efficient and robust signal sensing by sequences of adiabatic chirped pulses Open
We propose a scheme for sensing of an oscillating field in systems with large inhomogeneous broadening and driving field variation by applying sequences of phased, adiabatic, chirped pulses. These act as a double filter for dynamical decou…
View article: Spin-bath polarization via disentanglement
Spin-bath polarization via disentanglement Open
The occurrence of any physical process is restricted by the constraints imposed by the laws of thermodynamics on the energy and entropy exchange involved. A prominent class of processes where thermodynamic constraints are crucial involve p…
View article: Characterizing spin-bath parameters using conventional and time-asymmetric Hahn-echo sequences
Characterizing spin-bath parameters using conventional and time-asymmetric Hahn-echo sequences Open
Spin-bath noise characterization, which is typically performed by multi-pulse\ncontrol sequences, is essential for understanding most spin dynamics in the\nsolid-state. Here, we theoretically propose a method for extracting the\ncharacteri…
View article: Enhanced spin state readout of nitrogen-vacancy centers in diamond using infrared fluorescence
Enhanced spin state readout of nitrogen-vacancy centers in diamond using infrared fluorescence Open
Nitrogen-Vacancy (NV) centers in diamond have been used in recent years for a wide range of applications, from nano-scale NMR to quantum computation. These applications depend strongly on the efficient readout of the NV center's spin state…
View article: Charactarizing spin-bath parameters of solid-state spins using time-asymmetric Hahn-Echo sequences
Charactarizing spin-bath parameters of solid-state spins using time-asymmetric Hahn-Echo sequences Open
Spin-bath noise characterization, which is typically performed by multi-pulse control sequences, is essential for understanding most spin dynamics in the solid-state. Here, we theoretically propose a method for extracting the characteristi…