Quantum Logic Enhanced Sensing in Solid-State Spin Ensembles
- URL: http://arxiv.org/abs/2203.12501v1
- Date: Wed, 23 Mar 2022 15:54:53 GMT
- Title: Quantum Logic Enhanced Sensing in Solid-State Spin Ensembles
- Authors: Nithya Arunkumar, Kevin S. Olsson, Jner Tzern Oon, Connor Hart,
Dominik B. Bucher, David Glenn, Mikhail D. Lukin, Hongkun Park, Donhee Ham,
and Ronald L. Walsworth
- Abstract summary: We demonstrate quantum logic enhanced sensitivity for a macroscopic ensemble of solid-state, hybrid two-qubit sensors.
We achieve a factor of 30 improvement in signal-to-noise ratio, translating to a sensitivity enhancement exceeding an order of magnitude.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We demonstrate quantum logic enhanced sensitivity for a macroscopic ensemble
of solid-state, hybrid two-qubit sensors. We achieve a factor of 30 improvement
in signal-to-noise ratio, translating to a sensitivity enhancement exceeding an
order of magnitude. Using the electronic spins of nitrogen vacancy (NV) centers
in diamond as sensors, we leverage the on-site nitrogen nuclear spins of the NV
centers as memory qubits, in combination with homogeneous bias and control
fields, ensuring that all of the ${\sim}10^9$ two-qubit sensors are
sufficiently identical to permit global control of the NV ensemble spin states.
We find quantum logic sensitivity enhancement for multiple measurement
protocols with varying optimal sensing intervals, including XY8 dynamical
decoupling and correlation spectroscopy, using a synthetic AC magnetic field.
The results are independent of the nature of the target signal and broadly
applicable to metrology using NV centers and other solid-state ensembles. This
work provides a benchmark for macroscopic ensembles of quantum sensors that
employ quantum logic or quantum error correction algorithms for enhanced
sensitivity.
Related papers
- Correlated sensing with a solid-state quantum multi-sensor system for
atomic-scale structural analysis [14.301219154831964]
We develop a novel sensing paradigm exploiting the signal correlation among multiple quantum sensors.
With three nitrogen-vacancy centers as a quantum electrometer system, we demonstrate this multi-sensor paradigm.
We obtain the real-time charge dynamics of individual point defects and visualize how the dynamics induce the well-known optical spectral diffusion.
arXiv Detail & Related papers (2024-01-04T08:26:20Z) - Control of an environmental spin defect beyond the coherence limit of a central spin [79.16635054977068]
We present a scalable approach to increase the size of electronic-spin registers.
We experimentally realize this approach to demonstrate the detection and coherent control of an unknown electronic spin outside the coherence limit of a central NV.
Our work paves the way for engineering larger quantum spin registers with the potential to advance nanoscale sensing, enable correlated noise spectroscopy for error correction, and facilitate the realization of spin-chain quantum wires for quantum communication.
arXiv Detail & Related papers (2023-06-29T17:55:16Z) - Simulation of ODMR Spectra from Nitrogen-Vacancy Ensembles in Diamond
for Electric Field Sensing [0.0]
We present an open source simulation tool that models the influence of arbitrary electric and magnetic fields on the electronic and nuclear spin states of NV ensembles.
Specifically, the code computes the transition strengths and predicts the sensitivity under shot-noise-limited optically-detected magnetic resonance.
We show that our code can be used to optimize sensitivity in situations where usual arguments based on neglecting terms in the full Hamiltonian would give sub-optimal results.
arXiv Detail & Related papers (2023-01-10T18:16:12Z) - 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) - Microfluidic quantum sensing platform for lab-on-a-chip applications [0.0]
We present a fully integrated microfluidic platform for solid-state spin quantum sensors, such as the nitrogen-vacancy center in diamond.
Our work opens the door for novel chemical analysis capabilities within LOC devices with applications in electrochemistry, high throughput reaction screening, bioanalytics, organ-on-a-chip, or single-cell studies.
arXiv Detail & Related papers (2022-09-04T16:01:56Z) - DC Quantum Magnetometry Below the Ramsey Limit [68.8204255655161]
We demonstrate quantum sensing of dc magnetic fields that exceeds the sensitivity of conventional $Tast$-limited dc magnetometry by more than an order of magnitude.
We used nitrogen-vacancy centers in a diamond rotating at periods comparable to the spin coherence time, and characterize the dependence of magnetic sensitivity on measurement time and rotation speed.
arXiv Detail & Related papers (2022-03-27T07:32:53Z) - Fast high-fidelity single-shot readout of spins in silicon using a
single-electron box [0.5455889233228607]
We present two demonstrations of fast high-fidelity single-shot readout of spins in silicon quantum dots using a compact, dispersive charge sensor.
The sensor, despite requiring fewer electrodes than conventional detectors, performs at the state-of-the-art achieving spin read-out fidelity of 99.2% in less than 6 $mu$s.
arXiv Detail & Related papers (2022-03-13T09:38:31Z) - Multidimensional cluster states using a single spin-photon interface
coupled strongly to an intrinsic nuclear register [48.7576911714538]
Photonic cluster states are a powerful resource for measurement-based quantum computing and loss-tolerant quantum communication.
We propose the generation of multi-dimensional lattice cluster states using a single, efficient spin-photon interface coupled strongly to a nuclear register.
arXiv Detail & Related papers (2021-04-26T14:41:01Z) - Optimal control of a nitrogen-vacancy spin ensemble in diamond for
sensing in the pulsed domain [52.77024349608834]
Defects in solid state materials provide an ideal platform for quantum sensing.
Control of such an ensemble is challenging due to the spatial variation in both the defect energy levels and in any control field across a macroscopic sample.
We experimentally demonstrate that we can overcome these challenges using Floquet theory and optimal control optimization methods.
arXiv Detail & Related papers (2021-01-25T13:01:05Z) - Conditional quantum operation of two exchange-coupled single-donor spin
qubits in a MOS-compatible silicon device [48.7576911714538]
Silicon nanoelectronic devices can host single-qubit quantum logic operations with fidelity better than 99.9%.
For the spins of an electron bound to a single donor atom, introduced in the silicon by ion implantation, the quantum information can be stored for nearly 1 second.
Here we demonstrate the conditional, coherent control of an electron spin qubit in an exchange-coupled pair of $31$P donors implanted in silicon.
arXiv Detail & Related papers (2020-06-08T11:25:16Z)
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.