378 citations · 1.3k across the 23 of their papers we have counts for
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Quantum-assisted Distortion-free audio signal sensing
Chen Zhang, Durga Dasari, Matthias Widmann +9
Quantum sensors are keeping the cutting-edge sensitivities in metrology. However, for high-sensitive measurements of arbitrary signals, limitations in linear dynamic range could in…
Integrated and portable magnetometer based on nitrogen-vacancy ensembles in diamond
Felix M. Stürner, Andreas Brenneis, Thomas Buck +13
Magnetic field sensors that exploit quantum effects have shown that they can outperform classical sensors in terms of sensitivity enabling a range of novel applications in future,…
Diamond magnetometry and gradiometry towards subpicotesla DC field measurement
Chen Zhang, Farida Shagieva, Matthias Widmann +11
Nitrogen vacancy (NV) centers in diamond have developed into a powerful solid-state platform for compact quantum sensors. However, high sensitivity measurements usually come with a…
A subpicotesla diamond magnetometer
Thomas Wolf, Philipp Neumann, Kazuo Nakamura +3
Diamond defect centers are promising solid state magnetometers. Single centers allow for high spatial resolution field imaging but are limited in their magnetic field sensitivity t…
On the Matrix Representation of Quantum Operations
Yoshihiro Nambu, Kazuo Nakamura
This paper considers two frequently used matrix representations -- what we call the - and -matrices -- of a quantum operation and their applications. The matrices d…
Experimental Investigation of Nonideal Two-qubit Quantum-state Filter by Quantum Process Tomography
Yoshihiro Nambu, Kazuo Nakamura
We used quantum process tomography to investigate and identify the function of a nonideal two-qubit quantum-state filters subject to various degree of decoherence. We present a sim…