QDsiM: A Noise-Aware Simulation Toolkit for Quantum Diamond Microscope

• URL: http://arxiv.org/abs/2601.11649v1
• Date: Thu, 15 Jan 2026 09:13:39 GMT
• Title: QDsiM: A Noise-Aware Simulation Toolkit for Quantum Diamond Microscope
• Authors: Satyam Pandey, Abhimanyu Magapu, Prabhat Anand, Ankit Khandelwal, M. Girish Chandra,
• Abstract summary: The nitrogen-vacancy (NV) center in diamond is a leading solid-state platform for room-temperature quantum magnetometry.<n>We present a comprehensive simulation framework, for continuous-wave wide-field ODMR in NV-center ensembles.
• Score: 10.814244923718405
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: The nitrogen-vacancy (NV) center in diamond is a leading solid-state platform for room-temperature quantum magnetometry owing to its long spin coherence times, optical spin initialization and readout, and high sensitivity to magnetic, electric, and thermal perturbations. As NV-based optically detected magnetic resonance (ODMR) systems transition from controlled laboratory environments toward portable and field-deployable sensors, a detailed understanding of realistic noise sources and experimental imperfections becomes essential for optimizing performance and sensitivity. In this work, we present a comprehensive simulation framework, i.e., a digital twin, for continuous-wave wide-field ODMR in NV-center ensembles. The model is built upon a physically consistent seven-level description of the NV center and incorporates a broad range of experimentally relevant noise and imperfection mechanisms as modular, parameterized components. These include laser and microwave amplitude fluctuations, microwave phase noise, uncertainty in the NV gyromagnetic ratio, spin dephasing, temperature-induced shifts of the ground-state zero-field splitting, surface-induced magnetic field perturbations, and photon shot noise. Power broadening and contrast degradation arising from optical and microwave driving are captured self-consistently through linewidth calculations. Also, the spatial inhomogeneity is modeled via a Gaussian laser intensity profile across the sensing region...

Related papers

• High-Sensitivity NV Ensemble Imaging via AOD-Based Raster Scanning and Photodetection [33.72751145910978]
  We present a technique based on an ensemble of nitrogen-vacancy centers in diamond capable of detecting magnetic fields with high resolution.<n>To demonstrate its capabilities we image time-varying magnetic fields from a microelectrode in a quasi-second medium with sub-millisecond temporal resolution.<n>This approach enables flexible spatial sampling and achieves with our diamond nT$cdot$Hz$-1/2$ per pixel sensitivity, making it well suited for detecting weak, dynamic magnetic fields in biological and other complex systems.
  arXiv  Detail & Related papers  (2025-12-01T17:13:37Z)
• Detuning-insensitive wide-field imaging of vector microwave fields with diamond sensors [2.399772243186755]
  Nitrogen vacancy (NV) centers in diamond have precipitated profound advances in microwave detection.<n>We propose and demonstrate a novel approach for determining both the magnitude and direction of microwaves.<n>We achieved wide-field imaging of near field microwaves generated with a microscale $rm$-pattern antenna with a resolution of 800,nm.
  arXiv  Detail & Related papers  (2025-11-28T03:47:46Z)
• Photon-mediated interactions and dynamics of coherently driven quantum emitters in complex photonic environments [41.94295877935867]
  Born-Markov master equations have been extensively employed in the description of quantum optical phenomena.<n>We benchmark this modeling approach for the quantum dynamics of the emitter pair against exact calculations based on a macroscopic field quantization formalism.<n>Our analysis reveals four distinct regimes of laser driving and frequency splitting that lead to markedly different levels of accuracy in the effective model.
  arXiv  Detail & Related papers  (2025-08-01T09:38:07Z)
• Optimization and characterization of laser excitation for quantum sensing with single nitrogen-vacancy centres [36.136619420474766]
  We present a method of characterization and optimization of laser irradiation within a confocal microscope tailored to quantum sensing experiments.<n>We investigate the laser beam intensity profile, single-photon emission statistics, fluorescence response under varying polarization and saturation conditions, spectral characteristics, and the temporal profiles of readout and reinitialization pulses.
  arXiv  Detail & Related papers  (2025-07-14T15:27:22Z)
• A spin-refrigerated cavity quantum electrodynamic sensor [1.6713959634020665]
  Quantum sensors based on solid-state defects, in particular nitrogen-vacancy centers in diamond, enable precise measurement of magnetic fields, temperature, rotation, and electric fields. We introduce a cavity quantum electrodynamic (cQED) hybrid system operating in the strong coupling regime, which enables high readout fidelity of an NV ensemble. We demonstrate a broadband sensitivity of 580 fT/$sqrtmathrmHz$ around 15 kHz in ambient conditions.
  arXiv  Detail & Related papers  (2024-04-16T14:56:50Z)
• Digital noise spectroscopy with a quantum sensor [57.53000001488777]
  We introduce and experimentally demonstrate a quantum sensing protocol to sample and reconstruct the auto-correlation of a noise process. Walsh noise spectroscopy method exploits simple sequences of spin-flip pulses to generate a complete basis of digital filters. We experimentally reconstruct the auto-correlation function of the effective magnetic field produced by the nuclear-spin bath on the electronic spin of a single nitrogen-vacancy center in diamond.
  arXiv  Detail & Related papers  (2022-12-19T02:19:35Z)
• All-Optical Nuclear Quantum Sensing using Nitrogen-Vacancy Centers in Diamond [52.77024349608834]
  Microwave or radio-frequency driving poses a significant limitation for miniaturization, energy-efficiency and non-invasiveness of quantum sensors. We overcome this limitation by demonstrating a purely optical approach to coherent quantum sensing. Our results pave the way for highly compact quantum sensors to be employed for magnetometry or gyroscopy applications.
  arXiv  Detail & Related papers  (2022-12-14T08:34:11Z)
• Measuring the magnon-photon coupling in shaped ferromagnets: tuning of the resonance frequency [50.591267188664666]
  cavity photons and ferromagnetic spins excitations can exchange information coherently in hybrid architectures. Speed enhancement is usually achieved by optimizing the geometry of the electromagnetic cavity. We show that the geometry of the ferromagnet plays also an important role, by setting the fundamental frequency of the magnonic resonator.
  arXiv  Detail & Related papers  (2022-07-08T11:28:31Z)
• Investigation and comparison of measurement schemes in the low frequency biosensing regime using solid-state defect centers [58.720142291102135]
  Solid state defects in diamond make promising quantum sensors with high sensitivity andtemporal resolution. Inhomogeneous broadening and drive amplitude variations have differing impacts on the sensitivity depending on the sensing scheme used. We numerically investigate and compare the predicted sensitivity of schemes based on continuous-wave (CW) optically detected magnetic resonance (ODMR) spectroscopy, pi-pulse ODMR and Ramsey interferometry.
  arXiv  Detail & Related papers  (2021-09-27T13:05:23Z)
• Laser threshold magnetometry using green light absorption by diamond nitrogen vacancies in an external cavity laser [52.77024349608834]
  Nitrogen vacancy (NV) centers in diamond have attracted considerable recent interest for use in quantum sensing. We show theoretical sensitivity to magnetic field on the pT/sqrt(Hz) level is possible using a diamond with an optimal density of NV centers.
  arXiv  Detail & Related papers  (2021-01-22T18:58:05Z)
• A robust fiber-based quantum thermometer coupled with nitrogen-vacancy centers [29.359306535600815]
  We present a robust fiber-based quantum thermometer which can significantly isolate the magnetic field noise and microwave power shift. With a frequency modulation scheme, we realize the temperature measurement by detecting the variation of the sharp-dip in the zero-field optically detected magnetic resonance spectrum.
  arXiv  Detail & Related papers  (2020-04-09T03:24:52Z)
• Cavity quantum electrodynamic readout of a solid-state spin sensor [0.0]
  Solid-state spin sensors still lack a universal, high-fidelity readout technique. We demonstrate high-fidelity, room-temperature readout of an ensemble of nitrogen-vacancy (NV) centers via strong coupling to a dielectric microwave cavity. Our results pave a clear path to achieve unity readout fidelity of solid-state spin sensors through increased ensemble size, reduced spin-resonance linewidth, or improved cavity quality factor.
  arXiv  Detail & Related papers  (2020-03-02T18:57:40Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.