Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Ulrik Lund Andersen"'
Autor:
Nikolaj Winther Hansen, James Luke Webb, Luca Troise, Christoffer Olsson, Leo Tomasevic, Ovidiu Brinza, Jocelyn Achard, Robert Staacke, Michael Kieschnick, Jan Meijer, Axel Thielscher, Hartwig Roman Siebner, Kirstine Berg-Sørensen, Jean-François Perrier, Alexander Huck, Ulrik Lund Andersen
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract Quantum sensors using solid state qubits have demonstrated outstanding sensitivity, beyond that possible using classical devices. In particular, those based on colour centres in diamond have demonstrated high sensitivity to magnetic field th
Externí odkaz:
https://doaj.org/article/9dfcb4ac16bf4a0da1d552f7a858ea5c
Publikováno v:
Physical Review X, Vol 14, Iss 1, p 011039 (2024)
Micromechanical and nanomechanical systems with exceptionally low dissipation rates are enabling the next-generation technologies of ultrasensitive detectors and quantum information systems. New techniques and methods for lowering the dissipation rat
Externí odkaz:
https://doaj.org/article/d6b2c25bc5214ec9833dcc57850f41aa
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Nanomechanical resonators can be improved through rational design. Using an inverse design approach the authors achieve ultra-coherent resonators and pave the way towards the engineering of high performance micro- and nanomechanical resonators.
Externí odkaz:
https://doaj.org/article/bef9d4f3dc2341dd9240418c7a21802a
Publikováno v:
npj Quantum Information, Vol 7, Iss 1, Pp 1-8 (2021)
Abstract Quantum computing potentially offers exponential speed-ups over classical computing for certain tasks. A central, outstanding challenge to making quantum computing practical is to achieve fault tolerance, meaning that computations of any len
Externí odkaz:
https://doaj.org/article/7d84d30d46bc46f8a8d4762f97e73b14
Autor:
James Luke Webb, Luca Troise, Nikolaj Winther Hansen, Christoffer Olsson, Adam M. Wojciechowski, Jocelyn Achard, Ovidiu Brinza, Robert Staacke, Michael Kieschnick, Jan Meijer, Axel Thielscher, Jean-François Perrier, Kirstine Berg-Sørensen, Alexander Huck, Ulrik Lund Andersen
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Abstract The ability to perform noninvasive and non-contact measurements of electric signals produced by action potentials is essential in biomedicine. A key method to do this is to remotely sense signals by the magnetic field they induce. Existing m
Externí odkaz:
https://doaj.org/article/b61eb32e88824523ba1816647575042e
Autor:
Niklas Luhmann, Dennis Høj, Markus Piller, Hendrik Kähler, Miao-Hsuan Chien, Robert G. West, Ulrik Lund Andersen, Silvan Schmid
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)
Long-term stability and broad spectral response are highly desired features of absorbers. Here, the authors report impedance matched absorbers based on 2 nm thick gold layer operating within the mid-infrared range from 2 to 20 μm, enabling stable lo
Externí odkaz:
https://doaj.org/article/cb0e153297454fed835ca48e7a8b112e
Autor:
Jacob Hastrup, Ulrik Lund Andersen
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043065 (2022)
The cat code is a promising encoding scheme for bosonic quantum error correction as it allows for correction against losses—the dominant error mechanism in most bosonic systems. However, it has remained unclear how the required syndrome measurement
Externí odkaz:
https://doaj.org/article/01fd6784869a402eb14b43c0f268fc1e
Autor:
Mürsel Karadas, Christoffer Olsson, Nikolaj Winther Hansen, Jean-François Perrier, James Luke Webb, Alexander Huck, Ulrik Lund Andersen, Axel Thielscher
Publikováno v:
Frontiers in Neuroscience, Vol 15 (2021)
Magnetometry based on nitrogen-vacancy (NV) centers in diamond is a novel technique capable of measuring magnetic fields with high sensitivity and high spatial resolution. With the further advancements of these sensors, they may open up novel approac
Externí odkaz:
https://doaj.org/article/0d33a91946134360ad2a2f413f95c56c
Autor:
James L. Webb, Luca Troise, Nikolaj W. Hansen, Jocelyn Achard, Ovidiu Brinza, Robert Staacke, Michael Kieschnick, Jan Meijer, Jean-François Perrier, Kirstine Berg-Sørensen, Alexander Huck, Ulrik Lund Andersen
Publikováno v:
Frontiers in Physics, Vol 8 (2020)
Sensing of signals from biological processes, such as action potential propagation in nerves, are essential for clinical diagnosis and basic understanding of physiology. Sensing can be performed electrically by placing sensor probes near or inside a
Externí odkaz:
https://doaj.org/article/da9d2d89b34f4eecb4c7104ab2c23f6b
Publikováno v:
Isaksen, F W & Andersen, U L 2023, ' Mechanical cooling and squeezing using optimal control ', Physical Review A, vol. 107, no. 2, 023512 . https://doi.org/10.1103/PhysRevA.107.023512
A mechanical system can be optimally controlled through continuous measurements of its position followed by feedback. We revisit the complete formalism for predicting the performance of such as system without invoking the standard rotating wave appro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96286dc267666edbe7ba36f8635f2b95
http://arxiv.org/abs/2207.07785
http://arxiv.org/abs/2207.07785