Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Knowles, Helena S."'
Autor:
Shanahan, Louise, Belser, Sophia, Hart, Jack W., Gu, Qiushi, Roth, Julien R. E., Mechnich, Annika, Hoegen, Michael, Pal, Soham, Jordan, David, Miska, Eric A., Atature, Mete, Knowles, Helena S.
Optically addressable spin-based quantum sensors enable nanoscale measurements of temperature, magnetic field, pH, and other physical properties of a system. Advancing the sensors beyond proof-of-principle demonstrations in living cells and multicell
Externí odkaz:
http://arxiv.org/abs/2406.01181
Autor:
Gu, Qiushi, Shanahan, Louise, Hart, Jack W., Belser, Sophia, Shofer, Noah, Atature, Mete, Knowles, Helena S.
Viscoelasticity of the cytoplasm plays a critical role in cell morphology and division. In parallel, local temperature is coupled to viscoelasticity and influences cellular bioenergetics. Probing the interdependence of intracellular temperature and v
Externí odkaz:
http://arxiv.org/abs/2306.17306
Autor:
Tan, Anthony K. C., Jani, Hariom, Högen, Michael, Stefan, Lucio, Castelnovo, Claudio, Braund, Daniel, Geim, Alexandra, Feuer, Matthew S. G., Knowles, Helena S., Ariando, Ariando, Radaelli, Paolo G., Atatüre, Mete
Whirling topological textures play a key role in exotic phases of magnetic materials and offer promise for logic and memory applications. In antiferromagnets, these textures exhibit enhanced stability and faster dynamics with respect to ferromagnetic
Externí odkaz:
http://arxiv.org/abs/2303.12125
Autor:
Stefan, Lucio, Tan, Anthony K. C., Vindolet, Baptiste, Högen, Michael, Thian, Dickson, Tan, Hang Khume, Rondin, Loïc, Knowles, Helena S., Roch, Jean-François, Soumyanarayanan, Anjan, Atatüre, Mete
Publikováno v:
Phys. Rev. Applied 16, 014054 (2021)
Scanning diamond magnetometers based on the optically detected magnetic resonance of the nitrogen-vacancy centre offer very high sensitivity and non-invasive imaging capabilities when the stray fields emanating from ultrathin magnetic materials are s
Externí odkaz:
http://arxiv.org/abs/2101.10331
Autor:
Zhou, Hengyun, Choi, Joonhee, Choi, Soonwon, Landig, Renate, Douglas, Alexander M., Isoya, Junichi, Jelezko, Fedor, Onoda, Shinobu, Sumiya, Hitoshi, Cappellaro, Paola, Knowles, Helena S., Park, Hongkun, Lukin, Mikhail D.
Publikováno v:
Phys. Rev. X 10, 031003 (2020)
Quantum metrology makes use of coherent superpositions to detect weak signals. While in principle the sensitivity can be improved by increasing the density of sensing particles, in practice this improvement is severely hindered by interactions betwee
Externí odkaz:
http://arxiv.org/abs/1907.10066
Autor:
Choi, Joonhee, Zhou, Hengyun, Knowles, Helena S., Landig, Renate, Choi, Soonwon, Lukin, Mikhail D.
Publikováno v:
Phys. Rev. X 10, 031002 (2020)
We introduce a new approach for the robust control of quantum dynamics of strongly interacting many-body systems. Our approach involves the design of periodic global control pulse sequences to engineer desired target Hamiltonians that are robust agai
Externí odkaz:
http://arxiv.org/abs/1907.03771
Autor:
Holzgrafe, Jeffrey, Gu, Qiushi, Beitner, Jan, Kara, Dhiren, Knowles, Helena S., Atatüre, Mete
Conventional nuclear magnetic resonance (NMR) spectroscopy relies on acquiring signal from a macroscopic ensemble of molecules to gain information about molecular structure and dynamics. Transferring this technique to nanoscale sample sizes would ena
Externí odkaz:
http://arxiv.org/abs/1902.01784
Quantum state readout is a key component of quantum technologies, including applications in sensing, computation, and secure communication. Readout fidelity can be enhanced by repeating readouts. However, the number of repeated readouts is limited by
Externí odkaz:
http://arxiv.org/abs/1901.00016
Publikováno v:
Phys. Rev. B 96, 115206 (2017)
The sensing capability of a single optically bright electronic spin in diamond can be enhanced by making use of proximal dark nuclei as ancillary spins. Such systems, so far only realized in bulk diamond, provide orders of magnitude higher sensitivit
Externí odkaz:
http://arxiv.org/abs/1611.06898
Publikováno v:
Phys. Rev. Lett. 117, 100802 (2016)
An obstacle for spin-based quantum sensors is magnetic noise due to proximal spins. However, such a spin cluster surrounding the sensor can become an asset, if it can be controlled. Here, we polarize and readout a cluster of three nitrogen (N) electr
Externí odkaz:
http://arxiv.org/abs/1605.07552