High-dynamic-range magnetometry with a single nuclear spin in diamond

Waldherr, G.; Beck, Johannes; Neumann, Philipp; Said, Ressa S.; Nitsche, Matthias; Markham, Matthew; Twitchen, Daniel J.; Twamley, J.; Jelezko, Fedor; Wrachtrup, Jörg

doi:10.1038/nnano.2011.224

Cited by 145 publications

(152 citation statements)

References 17 publications

Supporting

Mentioning

148

Contrasting

Order By: Relevance

“…Because an NV electron is spatially confined within 1 nm, it can be placed within a few nanometers from the target. Therefore, research leading to the application of NV centers for magnetic sensing has become very active recently [117][118][119][120][121][122][123][124][125][126][127][128] and the use of such sensors in solid-state physics research is [98] Figure 7. Sensing the magnetic field that arose from the nuclear spins of a molecule using (a) a single NV center embedded in a diamond substrate and (b) a single NV center embedded in the tip of a diamond cantilever.…”

Section: Diamond Quantum Sensingmentioning

confidence: 99%

Isotope engineering of silicon and diamond for quantum computing and sensing applications

2014

View full text Add to dashboard Cite

Some of the stable isotopes of silicon and carbon have zero nuclear spin, whereas many of the other elements that constitute semiconductors consist entirely of stable isotopes that have nuclear spins. Silicon and diamond crystals composed of nuclear-spin-free stable isotopes ( 28 Si, 30 Si, or 12 C) are considered to be ideal host matrixes to place spin quantum bits (qubits) for quantum-computing and -sensing applications, because their coherent properties are not disrupted thanks to the absence of host nuclear spins. The present paper describes the state-of-theart and future perspective of silicon and diamond isotope engineering for development of quantum information-processing devices.

show abstract

Section: Diamond Quantum Sensingmentioning

confidence: 99%

Isotope engineering of silicon and diamond for quantum computing and sensing applications

2014

View full text Add to dashboard Cite

show abstract

“…Remarkably, the ø46 nm SOT reaches sensitivity of 0.38 µ B /Hz 1/2 that represents more than two orders of magnitude improvement 4,5,12 over any previously reported SQUIDs. Moreover, in sharp contrast to conventional SQUIDs and a number of recent optical readout magnetometers that can operate only at low fields [21][22][23][24][25] , the SOTs can operate and remain very sensitive also at high fields. The ø56 and the ø46 nm Pb SOTs display spin noise of 0.75 and 0.6 µ B /Hz 1/2 , respectively, at an unprecedented field of 1 T.…”

mentioning

confidence: 99%

A scanning superconducting quantum interference device with single electron spin sensitivity

et al. 2013

View full text Add to dashboard Cite

show abstract

“…See SI Fig. S3 for description of the Bayesian estimation process [37][38][39] .The data in Fig. 2(c) shows that our PEA unambiguously measures the value of the magnetic field with a linear readout over a wide range, and is also able to resolve phase shifts of π.…”

mentioning

confidence: 79%

Dual-channel lock-in magnetometer with a single spin in diamond

Nusran

Dutt

2013

Phys. Rev. B

View full text Add to dashboard Cite

We present an experimental method to perform dual-channel lock-in magnetometry of timedependent magnetic fields using a single spin associated with a nitrogen-vacancy (NV) color center in diamond. We incorporate multi-pulse quantum sensing sequences with phase estimation algorithms to achieve linearized field readout and constant, nearly decoherence-limited sensitivity over a wide dynamic range. Furthermore, we demonstrate unambiguous reconstruction of the amplitude and phase of the magnetic field. We show that our technique can be applied to measure random phase jumps in the magnetic field, as well as phase-sensitive readout of the frequency.PACS numbers: 07.55. Ge,85.75.Ss,76.30.Mi The coherent evolution of a quantum state interacting with its environment is the basis for understanding fundamental issues of open quantum systems 1 , as well as for applications in quantum information science and technology 2 . Traditionally in these fields, the extreme sensitivity of coherent quantum dynamics to external perturbations has been viewed as a barrier to be surmounted. By contrast, quantum sensors have emerged that instead take advantage of this sensitivity; recent examples include electrometers and magnetometers based on superconducting qubits 3 , quantum dots 4 , spins in diamond [5][6][7][8] and trapped ions 9 .The nitrogen-vacancy (NV) defect center in diamond ( Fig. 1(a)) shows great promise as an ultra-sensitive solid-state magnetometer and magnetic imager because it features potentially atomic-scale resolution 6 , wide temperature range operation from 4 K -700 K 10 , and long coherence times that allow for high magnetic field sensitivity 11 . Recent demonstrations include nanoscale magnetic imaging 7,12,13 , coupling to nano-mechanical oscillators [14][15][16] , detection of single proximal nuclear spins [17][18][19][20] and nanoscale volumes of external electron and nuclear spins [21][22][23][24] .Magnetometry with diamond spin sensors detects the frequency shift of the NV spin resonance caused by the magnetic field via the Zeeman effect. Highly sensitive quantum sensing techniques use multi-pulse dynamical decoupling (DD) sequences 3,6,9,[25][26][27] that are tuned to the frequency of a time-dependent field. The resulting fluctuating frequency shift is rectified and integrated by the pulse sequence to yield a detectable quantum phase, while effectively filtering out low frequency noise from the environment ( Fig. 1(b)). Another advantage of these DD sequences is that they make the magnetometer insensitive to instabilities such as drifts in temperature or applied bias magnetic field.However, these state of the art quantum sensing methods also have significant drawbacks: the dynamic range is limited by the quantum phase ambiguity 28,29 , the sensitivity is a highly nonlinear function of field amplitude requiring prior knowledge of a working point for accurate deconvolution, and the classical phase of the field has to be carefully controlled to obtain accurate field ampli-Illustration of experimental setup f...

show abstract

High-dynamic-range magnetometry with a single nuclear spin in diamond

Cited by 145 publications

References 17 publications

Isotope engineering of silicon and diamond for quantum computing and sensing applications

Isotope engineering of silicon and diamond for quantum computing and sensing applications

A scanning superconducting quantum interference device with single electron spin sensitivity

Dual-channel lock-in magnetometer with a single spin in diamond

Contact Info

Product

Resources

About