Research Repository

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A tool for functional brain imaging with lifespan compliance (2019)
Journal Article
Hill, R. M., Boto, E., Holmes, N., Hartley, C., Seedat, Z. A., Leggett, J., …Brookes, M. J. (2019). A tool for functional brain imaging with lifespan compliance. Nature Communications, 10, https://doi.org/10.1038/s41467-019-12486-x

The human brain undergoes significant functional and structural changes in the first decades of life, as the foundations for human cognition are laid down. However, non-invasive imaging techniques to investigate brain function throughout neurodevelop... Read More

SDSS-IV MaNGA: Bar pattern speed estimates with the Tremaine-Weinberg method and their error sources (2019)
Journal Article
Garma-Oehmichen, L., Cano-Díaz, M., Hernández-Toledo, H., Aquino-Ort’iz, E., Valenzuela, O., Aguerri, J. A. L., …Merrifield, M. (2019). SDSS-IV MaNGA: Bar pattern speed estimates with the Tremaine-Weinberg method and their error sources. Monthly Notices of the Royal Astronomical Society, https://doi.org/10.1093/mnras/stz3101

Estimating the bar pattern speed (Ωbar) is one of the main challenges faced in understanding the role of stellar bars in galaxy dynamical evolution. This work aims to characterise different uncertainty sources affecting the Tremaine Weinberg (TW)-met... Read More

Preprocessing among the Infalling Galaxy Population of EDisCS Clusters (2019)
Journal Article
Kirby, M., Just, D. W., Zaritsky, D., Rudnick, G., Desjardins, T., Cool, R., …Liebst, K. (2019). Preprocessing among the Infalling Galaxy Population of EDisCS Clusters. Astrophysical Journal, 885(1), https://doi.org/10.3847/1538-4357/ab44a0

We present results from a low-resolution spectroscopic survey for 21 galaxy clusters at 0.4 < z < 0.8 selected from the ESO Distant Cluster Survey. We measured spectra using the low-dispersion prism in IMACS on the Magellan Baade telescope and calcul... Read More

Investigation of the Effects of GaAs Substrate Orientations on the Electrical Properties of Sulfonated Polyaniline Based Heterostructures (2019)
Journal Article
Jameel, D. A., Marroquin, J. F. R., Aziz, M., Al Saqri, N. A., Jum'h, I., Telfah, A., …Felix, J. F. (2019). Investigation of the Effects of GaAs Substrate Orientations on the Electrical Properties of Sulfonated Polyaniline Based Heterostructures. Applied Surface Science, https://doi.org/10.1016/j.apsusc.2019.144315

In this work we present a detailed study of the influence of the GaAs substrate orientation on the electrical properties of heterojunctions based on GaAs and sulfonated polyaniline (SPAN) using Current-Voltage (I-V), Capacitance-Voltage (C-V), Deep-L... Read More

Post-stimulus beta responses are modulated by task duration (2019)
Journal Article
Pakenham, D. O., Quinn, A. J., Fry, A., Francis, S. T., Woolrich, M. W., Brookes, M. J., & Mullinger, K. J. (2019). Post-stimulus beta responses are modulated by task duration. NeuroImage, https://doi.org/10.1016/j.neuroimage.2019.116288

Modulation of beta-band neural oscillations during and following movement is a robust marker of brain function. In particular, the post-movement beta rebound (PMBR), which occurs on movement cessation, has been related to inhibition and connectivity... Read More

Immobilized Enzymes on Gold Nanoparticles: From Enhanced Stability to Cleaning of Heritage Textiles (2019)
Journal Article
Gherardi, F., Turyanska, L., Ferrari, E., Weston, N., Fay, M. W., & Colston, B. J. (2019). Immobilized Enzymes on Gold Nanoparticles: From Enhanced Stability to Cleaning of Heritage Textiles. ACS Applied Bio Materials, https://doi.org/10.1021/acsabm.9b00802

Enzyme-based treatments are used in heritage conservation for the effective removal of glues and other damaging organic layers from the surfaces of historic and artistic works. Despite their potential, however, the application of enzymatic treatments... Read More

Dynamical creation and detection of entangled many-body states in a chiral atom chain (2019)
Journal Article
Buonaiuto, G., Jones, R., Olmos Sanchez, B., & Lesanovsky, I. (2019). Dynamical creation and detection of entangled many-body states in a chiral atom chain. New Journal of Physics, https://doi.org/10.1088/1367-2630/ab4f50

Open quantum systems with chiral interactions can be realized by coupling atoms to guided radiation modes in photonic waveguides or optical fibres. In their steady state these systems can feature intricate many-body phases such as entangled dark stat... Read More

Optical excitation of propagating magnetostatic waves in an epitaxial Galfenol film by an ultrafast magnetic anisotropy change (2019)
Journal Article
Khokhlov, N., Gerevenkov, P., Shelukhin, L., Azovtsev, A., Pertsev, N., Wang, M., …Kalashnikova, A. (2019). Optical excitation of propagating magnetostatic waves in an epitaxial Galfenol film by an ultrafast magnetic anisotropy change. Physical Review Applied, 12, https://doi.org/10.1103/PhysRevApplied.12.044044

Using a time-resolved optically-pumped scanning optical microscopy technique we demonstrate the laser-driven excitation and propagation of spin waves in a 20-nm film of a ferromagnetic metallic alloy Galfenol epitaxially grown on a GaAs substrate. In... Read More

Optimising Decarbonisation Investment for Firms towards Environmental Sustainability (2019)
Journal Article
Tran, T., Mao, Y., & Siebers, P. (2019). Optimising Decarbonisation Investment for Firms towards Environmental Sustainability. Sustainability, 11(20), https://doi.org/10.3390/su11205718

We develop a mixed-integer non-linear programming model for firms’ decarbonisation investment decision-making towards a sustainable environment. Our model seeks the optimal investment for a firm to achieve maximum profit under constraints derived fro... Read More

Shuttling of Rydberg ions for fast entangling operations (2019)
Journal Article
VOGEL, J., LI, W., MOKHBERI, A., LESANOVSKY, I., & SCHMIDT-KALER, F. (2019). Shuttling of Rydberg ions for fast entangling operations. Physical Review Letters, 123, https://doi.org/10.1103/PhysRevLett.123.153603

We introduce a scheme to entangle Rydberg ions in a linear ion crystal, using the high electric polarizability of the Rydberg electronic states in combination with mutual Coulomb coupling of ions that establishes common modes of motion. After laser i... Read More

Scanning Tunnelling State Recognition With Multi-Class Neural Network Ensembles Scanning Tunnelling State Recognition With Multi-Class Neural Network Ensembles (2019)
Journal Article
Gordon, O., D'hondt, P., Knijff, L., Freeney, S., Junqueira, F., Moriarty, P., & Swart, I. (2019). Scanning Tunnelling State Recognition With Multi-Class Neural Network Ensembles Scanning Tunnelling State Recognition With Multi-Class Neural Network Ensembles. Review of Scientific Instruments, 90(10), https://doi.org/10.1063/1.5099590

One of the largest obstacles facing scanning probe microscopy is the constant need to correct flaws in the scanning probe in situ. This is currently a manual, time-consuming process that would benefit greatly from automation. Here we introduce a conv... Read More

Magnetophonon spectroscopy of Dirac fermion scattering by transverse and longitudinal acoustic phonons in graphene (2019)
Journal Article
Greenaway, M. T., Krishna Kumar, R., Kumaravadivel, P., Geim, A. K., & Eaves, L. (2019). Magnetophonon spectroscopy of Dirac fermion scattering by transverse and longitudinal acoustic phonons in graphene. Physical Review B, 100(15), https://doi.org/10.1103/physrevb.100.155120

Recently observed magnetophonon resonances in the magnetoresistance of graphene are investigated using the Kubo formalism. This analysis provides a quantitative fit to the magnetophonon resonances over a wide range of carrier densities. It demonstrat... Read More

Open quantum dynamics induced by light scalar fields (2019)
Journal Article
Burrage, C., Käding, C., Millington, P., & Minár, J. (2019). Open quantum dynamics induced by light scalar fields. Physical Review D, 100(7), https://doi.org/10.1103/PhysRevD.100.076003

We consider the impact of a weakly coupled environment comprising a light scalar field on the open dynamics of a quantum test mass, resulting in a master equation for the test mass that features corrections to the coherent dynamics, as well as decohe... Read More

Nonlinear light diffraction by electromagnetically induced gratings with PT symmetry in a Rydberg atomic gas (2019)
Journal Article
Hang, C., Li, W., & Huang, G. (2019). Nonlinear light diffraction by electromagnetically induced gratings with PT symmetry in a Rydberg atomic gas. Physical Review A, 100(4), 1-13. https://doi.org/10.1103/physreva.100.043807

Understanding and manipulating the non-Hermitian optical property based on coherent atomic gases is of great importance and has attracted much theoretical and experimental attentions. Advancing this study to the nonlinear optics regime is highly desi... Read More

Exploring Reionization-era Quasars. III. Discovery of 16 Quasars at 6.4 ≲ z ≲ 6.9 with DESI Legacy Imaging Surveys and the UKIRT Hemisphere Survey and Quasar Luminosity Function at z ∼ 6.7 (2019)
Journal Article
Myers, A. D., Wang, F., Yang, J., Fan, X., Wu, X., Yue, M., …Nunez, E. H. (2019). Exploring Reionization-era Quasars. III. Discovery of 16 Quasars at 6.4 ≲ z ≲ 6.9 with DESI Legacy Imaging Surveys and the UKIRT Hemisphere Survey and Quasar Luminosity Function at z ∼ 6.7. Astrophysical Journal, 884, https://doi.org/10.3847/1538-4357/ab2be5

This is the third paper in a series aimed at finding reionization-era quasars with the combination of DESI Legacy imaging Surveys (DELS), the Pan-STARRS1 (PS1) Survey, and near-infrared imaging surveys, such as the UKIRT Hemisphere Survey (UHS), as w... Read More

Identification of neurobehavioural symptom groups based on shared brain mechanisms (2019)
Journal Article
Ing, A., Sӓmann, P. G., Chu, C., Tay, N., Biondo, F., Jia, T., …Schumann, G. (2019). Identification of neurobehavioural symptom groups based on shared brain mechanisms. Nature Human Behaviour, https://doi.org/10.1038/s41562-019-0738-8

Most psychopathological disorders develop in adolescence. The biological basis for this development is poorly understood. To enhance diagnostic characterization and develop improved targeted interventions, it is critical to identify behavioural sympt... Read More

Spitzer Catalog of Herschel-selected Ultrared Dusty Star-forming Galaxies (2019)
Journal Article
Ma, J., Cooray, A., Nayyeri, H., Ghotbi, N., Ivison, R., Brown, A., …Valiante, E. (2019). Spitzer Catalog of Herschel-selected Ultrared Dusty Star-forming Galaxies. Astrophysical Journal Supplement, 244(2), 1-19. https://doi.org/10.3847/1538-4365/ab4194

The largest Herschel extragalactic surveys, H-ATLAS and HerMES, have selected a sample of “ultrared” dusty, star-forming galaxies (DSFGs) with rising SPIRE flux densities (S500 > S350 > S250, so-called “500 μm-risers”) as an efficient way for identif... Read More

Using matrix product states to study the dynamical large deviations of kinetically constrained models (2019)
Journal Article
Bañuls, M. C., & Garrahan, J. P. (in press). Using matrix product states to study the dynamical large deviations of kinetically constrained models. Physical Review Letters,

Here we demonstrate that tensor network techniques | originally devised for the analysis of quantum many-body problems | are well suited for the detailed study of rare event statistics in kinetically constrained models (KCMs). As concrete examples we... Read More

A comprehensive study on the effects of gamma radiation on the physical properties of two-dimensional WS2 monolayer semiconductor (2019)
Journal Article
Felix, J. F., da Silva, A. F., da Silva, . S. W., Qua, F., Qiu, B., Ren, J., …Huang, C. (2019). A comprehensive study on the effects of gamma radiation on the physical properties of two-dimensional WS2 monolayer semiconductor. Nanoscale Horizons, https://doi.org/10.1039/C9NH00414A

This article reports the effects of gamma radiation on the structural, optical and magnetic properties of monolayer tungsten disulfide (WS2) grown by a scalable Van der Waals epitaxial (VdWE) process on SiO2 coated Si substrate. We found that ionizin... Read More