Results 31 to 40 of about 3,928,586 (321)
Quantum sensing of microwave electric fields based on Rydberg atoms [PDF]
Reports on progress in physics. Physical Society, 2023 Microwave electric field (MW E-field) sensing is important for a wide range of applications in the areas of remote sensing, radar astronomy and communications.
Jinpeng Yuan +8 more
semanticscholar +1 more source
Complex Three-Dimensional Microscale Structures for Quantum Sensing Applications. [PDF]
Nano Lett, 2023 We present a novel method for fabricating highly customizable three-dimensional structures hosting quantum sensors based on nitrogen vacancy (NV) centers using two-photon polymerization.
Blankenship BW +9 more
europepmc +3 more sources
On the weekly cycle of atmospheric ammonia over European agricultural hotspots
Scientific Reports, 2022 The presence of a weekly cycle in the abundance of an atmospheric constituent is a typical fingerprint for the anthropogenic nature of its emission sources. However, while ammonia is mainly emitted as a consequence of human activities, a weekly cycle has
Martin Van Damme +7 more
doaj +1 more source
Distributed quantum sensing of multiple phases with fewer photons. [PDF]
Nat CommunDistributed quantum metrology has drawn intense interest as it outperforms the optimal classical counterparts in estimating multiple distributed parameters. However, most schemes so far have required entangled resources consisting of photon numbers equal
Kim DH +9 more
europepmc +2 more sources
Temporal analog of Fabry-Pérot resonator via coherent population trapping
npj Quantum Information, 2021 Ramsey spectroscopy via coherent population trapping (CPT) is essential in precision measurements. The conventional CPT-Ramsey fringes contain numbers of almost identical oscillations and so that it is difficult to identify the central fringe.
Ruihuan Fang +8 more
doaj +1 more source
Physical Review Applied, 2022 Exquisite sensitivities are a prominent advantage of quantum sensors. Ramsey sequences allow precise measurement of direct current fields, while Hahn-echo-like sequences measure alternating current fields. However, the latter are restrained for use with high-frequency fields (above approximately $1$ kHz) due to finite coherence times, leaving less ...
E.D. Herbschleb +7 more
openaire +2 more sources
Quantum sensing of magnetic fields with molecular spins [PDF]
npj Quantum Information, 2023 Spins are prototypical systems with the potential to probe magnetic fields down to the atomic scale limit. Exploiting their quantum nature through appropriate sensing protocols allows to enlarge their applicability to fields not always accessible by ...
C. Bonizzoni +3 more
semanticscholar +1 more source
Inference-Based Quantum Sensing
Physical Review Letters, 2022 In a standard Quantum Sensing (QS) task one aims at estimating an unknown parameter $θ$, encoded into an $n$-qubit probe state, via measurements of the system. The success of this task hinges on the ability to correlate changes in the parameter to changes in the system response $\mathcal{R}(θ)$ (i.e., changes in the measurement outcomes).
C. Huerta Alderete +6 more
openaire +3 more sources
Nanowire-based integrated photonics for quantum information and quantum sensing. [PDF]
Nanophotonics, 2023 At the core of quantum photonic information processing and sensing, two major building pillars are single-photon emitters and single-photon detectors. In this review, we systematically summarize the working theory, material platform, fabrication process,
Chang J +4 more
europepmc +3 more sources
Dynamical decoupling of spin ensembles with strong anisotropic interactions [PDF]
, 2021 Ensembles of dopants have widespread applications in quantum technology. The miniaturization of corresponding devices is however hampered by dipolar interactions that reduce the coherence at increased dopant density.
Fariña, Pablo Cova +2 more
core +3 more sources