output
19932026
most citedAn addressable quantum dot qubit with fault-tolerant control fidelity

975 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2018 · quant-phShow all

9 papers · 2 filters

quant-ph2018★ 33 cited

Demonstration of vector magnetic field sensing by simultaneous control of nitrogen-vacancy centers in diamond using multi-frequency microwave pulses

Ken Yahata, Yuichiro Matsuzaki, Shiro Saito +2

An ensemble of nitrogen-vacancy (NV) centers in diamond is a fascinating candidate to realize a sensitive magnetic field sensor. In particular, since the axes of the NV centers are…

quant-ph2018★ 132 cited

Speed limit for open quantum systems

Ken Funo, Naoto Shiraishi, Keiji Saito

We study the quantum speed limit for open quantum systems described by the Lindblad master equation. The obtained inequality shows a trade-off relation between the operation time a…

quant-ph2018★ 9 cited

Generating Robust Entanglement via Quantum Feedback

Kensuke Gallock Yoshimura, Naoki Yamamoto

Generating entangled states is one of the most important tasks in quantum information technology. However, in reality any entanglement generator must contain some characteristic un…

quant-ph2018★ 6 cited

Replacing measurement feedback with coherent feedback for quantum state preparation

Yoshiki Kashiwamura, Naoki Yamamoto

Measurement feedback is a versatile and powerful tool, although its performance is limited by several practical imperfections resulting from classical components. This paper shows…

quant-ph2018★ 25 cited

Determination of the Position of a Single Nuclear Spin from Free Nuclear Precessions Detected by a Solid-State Quantum Sensor

Kento Sasaki, Kohei M. Itoh, Eisuke Abe

We report on a nanoscale quantum-sensing protocol which tracks a free precession of a single nuclear spin and is capable of estimating an azimuthal angle---a parameter which standa…

quant-ph2018★ 44 cited

Three-dimensional localization spectroscopy of individual nuclear spins with sub-Angstrom resolution

J. Zopes, K. S. Cujia, K. Sasaki +3

We report on precise localization spectroscopy experiments of individual 13C nuclear spins near a central electronic sensor spin in a diamond chip. By detecting the nuclear free pr…

quant-ph2018★ 2 cited

Sensitivity Analysis of Cascaded Quantum Feedback Amplifier

Yu Yokotera, Naoki Yamamoto

Quantum amplifier is an essential device in quantum information processing. As in the classical (non-quantum) case, its characteristic uncertainty needs to be suppressed by feedbac…

quant-ph2018★ 124 cited

Assessment of a silicon quantum dot spin qubit environment via noise spectroscopy

K. W. Chan, W. Huang, C. H. Yang +8

Preserving coherence long enough to perform meaningful calculations is one of the major challenges on the pathway to large scale quantum computer implementations. Noise coupled fro…

quant-ph2018★ 31 cited

Coherent control of solid state nuclear spin nano-ensembles

Thomas Unden, Nikolas Tomek, Timo Weggler +11

Detecting and controlling nuclear spin nano-ensembles is crucial for the further development of nuclear magnetic resonance (NMR) spectroscopy and for the emerging solid state quant…