Results 31 to 40 of about 64,551 (307)

Microfluidic quantum sensing platform for lab-on-a-chip applications [PDF]

open access: yes, 2022
Lab-on-a-chip (LOC) applications have emerged as invaluable physical and life sciences tools. The advantages stem from advanced system miniaturization, thus, requiring far less sample volume while allowing for complex functionality, increased ...
Peter, Knittel   +9 more
core   +1 more source

A quantum dot single spin meter [PDF]

open access: yes, 2009
We present the theory of a single spin meter consisting of a quantum dot in a magnetic field under microwave irradiation combined with a charge counter.
Wabnig, J   +6 more
core   +2 more sources

Toward incompatible quantum limits on multiparameter estimation

open access: yesNature Communications, 2023
In quantum multiparameter estimation, achieving the best precision for each parameter is hindered by the Heisenberg principle. Here, the authors demonstrate how to mitigate this problem by using appropriate probe states.
Binke Xia   +4 more
doaj   +1 more source

Interface Engineering Modulated Valley Polarization in MoS2/hBN Heterostructure

open access: yesNanomaterials, 2023
Layered transition metal dichalcogenides (TMDs) provide a favorable research platform for the advancement of spintronics and valleytronics because of their unique spin-valley coupling effect, which is attributed to the absence of inversion symmetry ...
Fang Li   +9 more
doaj   +1 more source

Low-Frequency Quantum Sensing

open access: yesPhysical 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

Nanotube double quantum dot spin transducer for scalable quantum information processing

open access: yesNew Journal of Physics, 2020
One of the key challenges for the implementation of scalable quantum information processing is the design of scalable architectures that support coherent interaction and entanglement generation between distant quantum systems.
Wanlu Song   +4 more
doaj   +1 more source

Weak signal extraction in non-stationary channel with weak measurement

open access: yesCommunications Physics, 2023
An emerging challenge of integrated communication and sensing is the extraction of weak sensing signals transmitted through an unknown non-stationary channel. In this work, we propose a weak signal extraction method with weak measurement.
Qi Song   +7 more
doaj   +1 more source

Widely tuneable quantum cascade lasers for spectroscopic sensing [PDF]

open access: yes, 2022
Paper 937012, 6 S.In this paper recent advances in broadband-tuneable mid-infrared (MIR) external-cavity quantum cascade lasers (EC-QCL) technology are reported as well as their use in spectroscopic process analysis and imaging stand-off detection of ...
Boskovic, D.   +8 more
core   +1 more source

Law and Policy for the Quantum Age [PDF]

open access: yes, 2021
Law and Policy for the Quantum Age is for readers interested in the political and business strategies underlying quantum sensing, computing, and communication.
Garfinkel, Simson L.   +2 more
core   +1 more source

Enhancing quantum sensing sensitivity by a quantum memory [PDF]

open access: yesNature Communications, 2016
AbstractIn quantum sensing, precision is typically limited by the maximum time interval over which phase can be accumulated. Memories have been used to enhance this time interval beyond the coherence lifetime and thus gain precision. Here, we demonstrate that by using a quantum memory an increased sensitivity can also be achieved.
Sebastian Zaiser   +9 more
openaire   +3 more sources

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