All Outputs (2085)

Phase diagram of quantum generalized Potts-Hopfield neural networks (2022)
Journal Article
Fiorelli, E., Lesanovsky, I., & Müller, M. (2022). Phase diagram of quantum generalized Potts-Hopfield neural networks. New Journal of Physics, 24(3), Article 033012. https://doi.org/10.1088/1367-2630/ac5490

We introduce and analyze an open quantum generalization of the q-state Potts-Hopfield neural network (NN), which is an associative memory model based on multi-level classical spins. The dynamics of this many-body system is formulated in terms of a Ma... Read More about Phase diagram of quantum generalized Potts-Hopfield neural networks.

Ultrafast exciton transport at early times in quantum dot solids (2022)
Journal Article
Zhang, Z., Sung, J., Toolan, D. T., Han, S., Pandya, R., Weir, M. P., …Rao, A. (2022). Ultrafast exciton transport at early times in quantum dot solids. Nature Materials, https://doi.org/10.1038/s41563-022-01204-6

Quantum dot (QD) solids are an emerging platform for developing a range of optoelectronic devices. Thus, understanding exciton dynamics is essential towards developing and optimizing QD devices. Here, using transient absorption microscopy, we reveal... Read More about Ultrafast exciton transport at early times in quantum dot solids.

Finite Time Large Deviations via Matrix Product States (2022)
Journal Article
Causer, L., Bañuls, M. C., & Garrahan, J. P. (2022). Finite Time Large Deviations via Matrix Product States. Physical Review Letters, 128(9), Article 090605. https://doi.org/10.1103/PhysRevLett.128.090605

Recent work has shown the effectiveness of tensor network methods for computing large deviation functions in constrained stochastic models in the infinite time limit. Here we show that these methods can also be used to study the statistics of dynamic... Read More about Finite Time Large Deviations via Matrix Product States.

Turbulent magnetic fields in merging clusters: a case study of Abell 2146 (2022)
Journal Article
Chadayammuri, U., ZuHone, J., Nulsen, P., Nagai, D., & Russell, H. (2022). Turbulent magnetic fields in merging clusters: a case study of Abell 2146. Monthly Notices of the Royal Astronomical Society, 512(2), 2157-2170. https://doi.org/10.1093/mnras/stac594

Kelvin-Helmholtz instabilities (KHI) along contact discontinuities in galaxy clusters have been used to constrain the strength of magnetic fields in galaxy clusters, following the assumption that, as magnetic field lines drape around the interface be... Read More about Turbulent magnetic fields in merging clusters: a case study of Abell 2146.

Modelling high-resolution ALMA observations of strongly lensed dusty star-forming galaxies detected by Herschel (2022)
Journal Article
Maresca, J., Dye, S., Amvrosiadis, A., Bendo, G., Cooray, A., De Zotti, G., …Wardlow, J. (2022). Modelling high-resolution ALMA observations of strongly lensed dusty star-forming galaxies detected by Herschel. Monthly Notices of the Royal Astronomical Society, 512(2), 2426–2438. https://doi.org/10.1093/mnras/stac585

We present modelling of ∼0.1 arcsec resolution Atacama Large Millimetre/submillimetre Array imaging of seven strong gravitationally lensed galaxies detected by the Herschel Space Observatory. Four of these systems are galaxy-galaxy strong lenses, wit... Read More about Modelling high-resolution ALMA observations of strongly lensed dusty star-forming galaxies detected by Herschel.

Finite time large deviations via matrix product states (2022)
Journal Article
Causer, L., Bañuls, M. C., & Garrahan, J. P. (2022). Finite time large deviations via matrix product states. Physical Review Letters, 128(9), Article 090605. https://doi.org/10.1103/PhysRevLett.128.090605

Recent work has shown the effectiveness of tensor network methods for computing large deviation functions in constrained stochastic models in the infinite time limit. Here we show that these methods can also be used to study the statistics of dynamic... Read More about Finite time large deviations via matrix product states.

Redox-active hierarchical assemblies of hybrid polyoxometalate nanostructures at carbon surfaces (2022)
Journal Article
Amin, S. S., Cameron, J. M., Cousins, R. B., Wrigley, J., Liirò-Peluso, L., Sans, V., …Newton, G. N. (2022). Redox-active hierarchical assemblies of hybrid polyoxometalate nanostructures at carbon surfaces. Inorganic Chemistry Frontiers, 9(8), 1777-1784. https://doi.org/10.1039/d2qi00174h

The self-assembly of hierarchical nanostructures on surfaces is a promising strategy for the development of a wide range of new technologies, such as energy-storage devices and sensors. In this work we show that amphiphilic, organofunctionalized hybr... Read More about Redox-active hierarchical assemblies of hybrid polyoxometalate nanostructures at carbon surfaces.

Magnetic field design in a cylindrical high-permeability shield: The combination of simple building blocks and a genetic algorithm (2022)
Journal Article
Packer, M., Hobson, P. J., Davis, A., Holmes, N., Leggett, J., Glover, P., …Fromhold, T. M. (2022). Magnetic field design in a cylindrical high-permeability shield: The combination of simple building blocks and a genetic algorithm. Journal of Applied Physics, 131(9), Article 093902. https://doi.org/10.1063/5.0071986

Magnetically sensitive experiments and newly developed quantum technologies with integrated high-permeability magnetic shields require increasing control of their magnetic field environment and reductions in size, weight, power, and cost. However, ma... Read More about Magnetic field design in a cylindrical high-permeability shield: The combination of simple building blocks and a genetic algorithm.

Mercury goes Solid at room temperature at nanoscale and a potential Hg waste storage (2022)
Journal Article
Kana, N., Morad, R., Akbari, M., Henini, M., Niemela, J., Hacque, F., …Maaza, M. (2022). Mercury goes Solid at room temperature at nanoscale and a potential Hg waste storage. Scientific Reports, 12(1), Article 3494. https://doi.org/10.1038/s41598-022-06857-6

While room temperature bulk mercury is liquid, it is solid in its nano-configuration (Ønano-Hg ≤ 2.5 nm). Conjugating the nano-scale size effect and the Laplace driven surface excess pressure, Hg nanoparticles of Ønano-Hg ≤ 2.4 nm embedded in a 2-D t... Read More about Mercury goes Solid at room temperature at nanoscale and a potential Hg waste storage.

Galaxy And Mass Assembly (GAMA): Data Release 4 and the z < 0.1 total and z < 0.08 morphological galaxy stellar mass functions (2022)
Journal Article
Driver, S. P., Bellstedt, S., Robotham, A. S., Baldry, I. K., Davies, L. J., Liske, J., …Wilkins, S. M. (2022). Galaxy And Mass Assembly (GAMA): Data Release 4 and the z < 0.1 total and z < 0.08 morphological galaxy stellar mass functions. Monthly Notices of the Royal Astronomical Society, 513(1), 439-467. https://doi.org/10.1093/mnras/stac472

In Galaxy And Mass Assembly Data Release 4 (GAMA DR4), we make available our full spectroscopic redshift sample. This includes 248 682 galaxy spectra, and, in combination with earlier surveys, results in 330 542 redshifts across five sky regions cove... Read More about Galaxy And Mass Assembly (GAMA): Data Release 4 and the z < 0.1 total and z < 0.08 morphological galaxy stellar mass functions.

Witnessing Bell violations through probabilistic negativity (2022)
Journal Article
Morris, B., Fiderer, L. J., Lang, B., & Goldwater, D. (2022). Witnessing Bell violations through probabilistic negativity. Physical Review A, 105(3), Article 032202. https://doi.org/10.1103/physreva.105.032202

Bell's theorem shows that no local hidden-variable model can explain the measurement statistics of a quantum system shared between two parties, thus ruling out a classical (local) understanding of nature. In this paper we demonstrate that by relaxing... Read More about Witnessing Bell violations through probabilistic negativity.

From Khoi-San indigenous knowledge to bioengineered CeO2 nanocrystals to exceptional UV-blocking green nanocosmetics (2022)
Journal Article
Sintwa, N., Ditlopo, N., Khamlich, S., Manikandan, E., Gnanasekaran, K., Henini, M., …Maaza, M. (2022). From Khoi-San indigenous knowledge to bioengineered CeO2 nanocrystals to exceptional UV-blocking green nanocosmetics. Scientific Reports, 12(1), Article 3468. https://doi.org/10.1038/s41598-022-06828-x

Single phase CeO2 nanocrystals were bio-synthesized using Hoodia gordonii natural extract as an effective chelating agent. The nanocrystals with an average diameter of 〈Ø〉 ~ 5–26 nm with 4+ electronic valence of Ce displayed a remarkable UV selecti... Read More about From Khoi-San indigenous knowledge to bioengineered CeO2 nanocrystals to exceptional UV-blocking green nanocosmetics.

Spectrally tailored hyperpixel filter arrays for efficient imaging of chemical compositions (2022)
Journal Article
Taylor-Williams, M., Cousins, R., Williams, C., Bohndiek, S. E., Mellor, C. J., & Gordon, G. S. D. (2022). Spectrally tailored hyperpixel filter arrays for efficient imaging of chemical compositions. Proceedings of SPIE, 11954, https://doi.org/10.1117/12.2606917

We present a method for designing and fabricating 'HyperPixels': pixel filter arrays with custom spectral transmission properties that enable efficient imaging of specific chromophores or fluorophores. Multispectral imaging typically targets particul... Read More about Spectrally tailored hyperpixel filter arrays for efficient imaging of chemical compositions.

Coherent ground-state transport of neutral atoms (2022)
Journal Article
Li, X. X., You, J. B., Shao, X. Q., & Li, W. (2022). Coherent ground-state transport of neutral atoms. Physical Review A, 105(3), Article 032417. https://doi.org/10.1103/PhysRevA.105.032417

Quantum state transport is an important way to study the energy or information flow. By combining the unconventional Rydberg pumping mechanism and the diagonal form of van der Waals interactions, we construct a theoretical model via second-order pert... Read More about Coherent ground-state transport of neutral atoms.

Generalised scalar-tensor theories and self-tuning (2022)
Journal Article
Copeland, E. J., Ghataore, S., Niedermann, F., & Padilla, A. (2022). Generalised scalar-tensor theories and self-tuning. Journal of Cosmology and Astroparticle Physics, 2022(3), Article 004. https://doi.org/10.1088/1475-7516/2022/03/004

We explore a family of generalised scalar-tensor theories that exhibit self-tuning to low scale anti de Sitter vacua, even in the presence of a large cosmological constant. We are able to examine the linearised fluctuations about these vacua and comp... Read More about Generalised scalar-tensor theories and self-tuning.

Exciton and Phonon Radiative Linewidths in Monolayer Boron Nitride (2022)
Journal Article
Cassabois, G., Fugallo, G., Elias, C., Valvin, P., Rousseau, A., Gil, B., …Novikov, S. (2022). Exciton and Phonon Radiative Linewidths in Monolayer Boron Nitride. Physical Review X, 12(1), Article 011057. https://doi.org/10.1103/PhysRevX.12.011057

The light-matter interaction in bulk semiconductors is in the strong-coupling regime with hybrid eigenstates, the so-called exciton polaritons and phonon polaritons. In two-dimensional (2D) systems, the translational invariance is broken in the direc... Read More about Exciton and Phonon Radiative Linewidths in Monolayer Boron Nitride.

Analysis of I–V-T characteristics of Be-doped AlGaAs Schottky diodes grown on (100) GaAs substrates by molecular beam epitaxy (2022)
Journal Article
Oussalah, S., Filali, W., Garoudja, E., Zatout, B., Lekoui, F., Amrani, R., …Henini, M. (2022). Analysis of I–V-T characteristics of Be-doped AlGaAs Schottky diodes grown on (100) GaAs substrates by molecular beam epitaxy. Microelectronics Journal, 122, Article 105409. https://doi.org/10.1016/j.mejo.2022.105409

The temperature effect on the electrical characteristics of Au/Ti on Beryllium-doped Al0.29Ga0.71As Schottky diodes grown on (100) GaAs substrates by molecular beam epitaxy has been investigated for various temperatures ranging from 260 to 400 K. By... Read More about Analysis of I–V-T characteristics of Be-doped AlGaAs Schottky diodes grown on (100) GaAs substrates by molecular beam epitaxy.

The Value of ArtScience: improving the balance in collaboration practices between artists and scientists can impact knowledge production (2022)
Journal Article
Kuchner, U. (2022). The Value of ArtScience: improving the balance in collaboration practices between artists and scientists can impact knowledge production. Writing Visual Culture, 10.0, 23-42

In a time in which scientific knowledge is in danger of being discredited, we return to the responsibility of art and science. There is widespread optimism that collaborations between artists and scientists can develop solutions to complex problems,... Read More about The Value of ArtScience: improving the balance in collaboration practices between artists and scientists can impact knowledge production.

Terahertz control of photoluminescence emission in few-layer InSe (2022)
Journal Article
Venanzi, T., Selig, M., Pashkin, A., Winnerl, S., Katzer, M., Arora, H., …Schneider, H. (2022). Terahertz control of photoluminescence emission in few-layer InSe. Applied Physics Letters, 120(9), Article 092104. https://doi.org/10.1063/5.0080784

A promising route for the development of opto-electronic technology is to use terahertz radiation to modulate the optical properties of semiconductors. Here, we demonstrate the dynamical control of photoluminescence (PL) emission in few-layer InSe us... Read More about Terahertz control of photoluminescence emission in few-layer InSe.

On the trapping of neutrons in Fabry–Pérot nano-structures and potential applications for cold neutron lifetime Investigations (2022)
Journal Article
Maaza, M., Pardo, B., Hamidi, D., Akbari, M., Morad, R., Henini, M., & Gibaud, A. (2023). On the trapping of neutrons in Fabry–Pérot nano-structures and potential applications for cold neutron lifetime Investigations. Journal of Neutron Research, 25(1), 13-28. https://doi.org/10.3233/jnr-220015

Correlated to the neutron total reflection phenomenon is the so-called frustrated total reflection, also known as neutron channeling, observed with both thermal and cold neutrons. Within this contribution, such a phenomenon is validated in various ad... Read More about On the trapping of neutrons in Fabry–Pérot nano-structures and potential applications for cold neutron lifetime Investigations.