cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Near-Infrared-Assisted Charge Control and Spin Readout of the Nitrogen-Vacancy Center in Diamond
Creators: name: Hopper, David A.
name: Grote, Richard R.
name: Exarhos, Annemarie L.
name: Bassett, Lee C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We utilize nonlinear absorption to design all-optical protocols that improve both charge state initialization and spin readout for the nitrogen-vacancy (NV) center in diamond. Non-monotonic variations in the equilibrium charge state as a function of visible and near-infrared (NIR) optical power are attributed to competing multiphoton absorption processes. In certain regimes, multicolor illumination enhances the steady-state population of the NV's negative charge state above 90%. At higher NIR intensities, selective ionization of the singlet manifold facilitates a protocol for spin-to-charge conversion that dramatically enhances the spin readout fidelity. We demonstrate a 6-fold increase in the signal-to-noise ratio for single-shot spin measurements and predict an orders-of-magnitude experimental speedup over traditional methods for emerging applications in magnetometry and quantum information science using NV spins.
description: 5 pages, 4 figures, plus supplement
Lung liquid in the developing fetal lamb
Creators: name: Dickson, Kerry.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Entanglement branes in a two-dimensional string theory
Creators: name: Donnelly, William
name: Wong, Gabriel
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: What is the meaning of entanglement in a theory of extended objects such as strings? To address this question we consider the spatial entanglement between two intervals in the Gross-Taylor model, the string theory dual to two-dimensional Yang-Mills theory at large $N$. The string diagrams that contribute to the entanglement entropy describe open strings with endpoints anchored to the entangling surface, as first argued by Susskind. We develop a canonical theory of these open strings, and describe how closed strings are divided into open strings at the level of the Hilbert space. We derive the Modular hamiltonian for the Hartle-Hawking state and show that the corresponding reduced density matrix describes a thermal ensemble of open strings ending on an object at the entangling surface that we call an E-brane.
description: 37 pages, 12 figures. v3: Modified title and abstract
Large kagome family candidates with topological superconductivity and charge density waves
Creators: name: Yi, Xin-Wei
name: Ma, Xing-Yu
name: Zhang, Zhen
name: Liao, Zheng-Wei
name: You, Jing-Yang
name: Su, Gang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A group of newly discovered non-magnetic metal kagome structures AV3Sb5 (A=K, Rb, Cs) have aroused widespread interest in experiment and theory due to their unusual charge density wave (CDW) and intertwined superconductivity. However, they all possess weak electron-phonon coupling (EPC) and low superconducting transition temperature. Here, we performed high-throughput first-principles calculations on novel kagome candidates with AV3Sb5 prototype structure, and proposed 24 dynamically stable novel kagome metals. The calculation based on Bardeen-Cooper-Schrieffer theory shows that most of these metals are superconductors with much stronger EPC than the reported AV3Sb5 materials, and their superconducting transition temperatures Tc is between 0.3 and 5.0K. Additionally, several compounds, such as KZr3Pb5 with the highest Tc, are identified as Z2 topological metals with clear Dirac cone topological surface states near Fermi level. NaZr3As5 is shown to have possible CDW phases. Our results provide rich platforms for exploring various new physics with the prototype kagome structure, in which the coexistence of superconductivity and nontrivial topological nature provides promising insights on the discovery of topological superconductors.
Electric octupole order in bilayer Rashba system
Creators: name: Hitomi, Takanori
name: Yanase, Youichi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The odd-parity multipole is an emergent degree of freedom, leading to spontaneous inversion symmetry breaking. The odd-parity multipole order may occur by forming staggered even-parity multipoles in a unit cell. We focus on a locally noncentrosymmetric bilayer Rashba system, and study an odd-parity electric octupole order caused by the antiferro stacking of local electric quadrupoles. Analyzing the forward scattering model, we show that the electric octupole order is stabilized by a layer-dependent Rashba spin-orbit coupling. The roles of the spin-orbit coupling are clarified on the basis of the analytic formula of multipole susceptibility. The spin texture allowed in the D_2d point group symmetry and its magnetic response are revealed. Furthermore, we show that the parity-breaking quantum critical point appears in the magnetic field. The possible realization of the electric octupole order in bilayer high-T_c cuprate superconductors is discussed.
description: 12 pages, 11 figures, To appear in J. Phys. Soc. Jpn
title: Data assimilation with autocorrelated model error
Creators: name: Ren, Haonan
Publisher: name: University of Reading
Year: 2023

description: Data assimilation has often been performed under the perfect model assumption, but in reality, numerical models often contain model errors with spatial and temporal correlations. The objective of this thesis is to thoroughly investigate the impact of an inaccurate time correlation in the model error description on data assimilation results, both analytically and numerically using the ensemble Kalman Smoother (EnKS). Furthermore, we try to develop an efficient way to perform online estimation of certain model error autocorrelation parameters with the data assimilation scheme. With a simple linear model and a single-parameter autocorrelation, we find that the performance of the data assimilation scheme can be impacted by the departures between the actual values of the parameter and the value proposed in the data assimilation process with sparse observations. However, the impact of the incorrect parameter can be diminished with dense observations. Furthermore, we show that the correct model error decorrelation timescale can be estimated after multiple simulation windows using the state augmentation method with the linear system. More complex autocorrelation, in which decaying and oscillatory scales are considered, is later examined on the linear model and, furthermore, a nonlinear logistic map. It seems impossible for the EnKS to track both decaying and oscillatory parameters in the autocorrelation, and the iterative variant of the EnKS (IEnKS) is required. With the nonlinear logistic map, even the IEnKS fails to find the correct values for the two parameters and can get stuck in local minima. Fortunately, we can find the correct values of the parameters with careful tuning of the IEnKS and transformation of the solution space. When the problem confronts a high-dimensional nonlinear system such as the quasigeostrophic model, a large part of the state has to be observed in space, even for the simplest case of the model error autocorrelation. In this case, it shows the limitations of our method for practical weather forecast systems since the observation cannot be as dense as needed for the parameter estimation to work, and result in an affordable scheme.
The circumstellar material around the Type IIP SN 2021yja
Creators: name: Kozyreva, Alexandra
name: Klencki, Jakub
name: Filippenko, Alexei V.
name: Baklanov, Petr
name: Mironov, Alexey
name: Justham, Stephen
name: Chiavassa, Andrea
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The majority of Type II-plateau supernovae (SNe IIP) have light curves that are not compatible with the explosions of stars in a vacuum; instead, the light curves require the progenitors to be embedded in circumstellar matter (CSM). We report on the successful fitting of the well-observed SN IIP 2021yja as a core-collapse explosion of a massive star with an initial mass of ~15 Msun and a pre-explosion radius of 631 Rsun. To explain the early-time behaviour of the broad-band light curves, the presence of 0.55 Msun CSM within ~2x10^14 cm is needed. Like many other SNe IIP, SN 2021yja exhibits an early-time flux excess including ultraviolet wavelengths. This, together with the short rise time (<2 days) in the gri bands, indicates the presence of a compact component in the CSM, essentially adjacent to the progenitor. We discuss the origin of the pre-existing CSM, which is most likely a common property of highly convective red supergiant envelopes. We argue that the difficulty in fitting the entire light curve with one spherical distribution indicates that the CSM around the SN 2021yja progenitor was asymmetric.
description: 15 pages, 10 figures, accepted for publication in ApJL
A generalised distributed-order Maxwell model
Creators: name: Ferrás, Luis
name: Morgado, Maria Luisa
name: Rebelo, Magda
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Physics (physics.class-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 26A33, 42A38, 76P05, 76-10

description: In this work we present a generalised viscoelastic model using distributed-order derivatives. The model consists of two distributed-order elements (distributed springpots) connected in series, as in the Maxwell model. The new model generalises the fractional viscoelastic model presented in [H. Schiessel, A. Blumen, Hierarchical analogues to fractional relaxation equations, Journal of Physics A: Mathematical and General 26 (1993) 5057-50] and allows for a more broad and accurate description of complex fluids when a proper weighting function of the order of the derivatives is chosen. We discuss the connection between classical, fractional, and viscoelastic models of distributed order and highlight the fundamental concepts that support these constitutive equations. We also derive the relaxation modulus, the storage and loss modulus, and the creep compliance for specific weighting functions.
E-RIHS PP D4.3 Rules of Procedure
Creators: name: Weterings, Marjolijn
name: Van't Hof, Jan
name: Petitcol, Rémi
name: Strlic, Matija
Publisher: name: Zenodo
Year: 2020
Subjects: Rules of procedure, legal work

description: This draft document, entitled ‘Rules of Procedure’, is intended to provide the operational basis for the European Research Infrastructure for Heritage Science as a European Research Infrastructure Consortium (hereinafter referred to as E-RIHS ERIC). The Rules shall be read in conjunction with the E-RIHS ERIC Statutes This first version of the Rules of Procedure is drafted to start the E-RIHS ERIC activities. The Rules of Procedure will be presented to the General Assembly by the Director General at the start of ERIC, to be adopted by the General Assembly according to Article 4(b) of the Statues of E-RIHS. This first official version will take into account the first months of operation of E-RIHS ERIC. The Rules of Procedure are to be periodically reviewed by the Director General and considered by the General Assembly as required.
Supplementary material from "Classification of alpine grasslands in the western Tian Shan and northern Pamir-Alai Mountains (Kyrgyzstan and Tajikistan, Middle Asia)"
Creators: name: Swacha, Grzegorz
name: Świerszcz, Sebastian
name: Nowak, Sylwia
name: Nobis, Marcin
name: Nowak, Arkadiusz
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 310899
subject: Plant biology not elsewhere classified
classificationCode: 310302
subject: Community ecology (excl. invasive species ecology)
classificationCode: 310399
subject: Ecology not elsewhere classified

description: This data contains the analytic table including type relevés (Tab. S1) and the synoptic table (Tab. S2) of alpine grasslands in the western Tian Shan and northern Pamir-Alai Mountains (Kyrgyzstan and Tajikistan, Middle Asia).
The insidious return of Cholera in the Eastern Mediterranean Region, Lebanon and Syria: a worrying signal! Past, present, and future forthcoming
Creators: name: Orsini, Davide
name: Martini, Mariano
Publisher: name: Journal of Preventive Medicine and Hygiene
Year: 2023
Subjects: history of public health
cholera
Eastern Mediterranean Region
outbreaks
epidemiology
infectious diseases
history of hygiene

description: Introduction War, hunger, and disease continue to decimate the populations of many countries in the world. Owing to conflicts, environmental instability and natural disasters, many people, especially the poorest, fall victim to epidemic diseases. One such disease, cholera, began to spread again in 2022, striking Lebanon and Syria, countries that have experienced serious social troubles for years. The return of cholera immediately alarmed the scientific community, which is now making every effort, most notably by implementing a major vaccination campaign, to prevent this disease from becoming endemic in these two countries, thus making them a reservoir for its potential spread in the Eastern Mediterranean Region. Discussion Cholera is a disease that draws its strength from poor hygiene, primitive sanitation and the consumption of contaminated water and food. From the 19th century onwards, its spread was facilitated by overcrowded housing and lack of hygiene, which became commonplace features of urban life. Method In outlining the spread of cholera in Lebanon and Syria, the authors raise the question of the possible resurgence of epidemic cholera, especially in the light of the consequences of the devastating earthquake that hit the border area between Turkey and Syria last February. Conclusion These events have had a devastating effect on the population, destroying, among other things, the few existing health facilities and aggravating the already difficult living conditions of millions of people who, owing to the ongoing war, have been living for years in makeshift settlements, bereft of water, sanitation and any form of health care.
description: Journal of Preventive Medicine and Hygiene, Vol. 64 No. 1 (2023): Vol. 64 No. 1 (2023)
Multiply-warped product metrics and reduction of Einstein equations
Creators: name: Gholami, F.
name: Darabi, F.
name: Haji-Badali, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: It is shown that for every multidimensional metric in the multiply warped product form $\bar{M} = K\times_{f_1} M_1\times_{f_2}M_2$ with warp functions $f_1$, $f_2$, associated to the submanifolds $M_1$, $M_2$ of dimensions $n_1$, $n_2$ respectively, one can find the corresponding Einstein equations $\bar{G}_{AB}=-\barΛ\bar{g}_{AB}$, with cosmological constant $\barΛ$, which are reducible to the Einstein equations $G_{αβ} = -Λ_1 g_{αβ}$ and $G_{ij} =-Λ_2 h_{ij}$ on the submanifolds $M_1$, $M_2$, with cosmological constants ${Λ_1}$ and ${Λ_2}$, respectively, where $\barΛ$, ${Λ_1}$ and ${Λ_2}$ are functions of ${f_1}$, ${f_2}$ and $n_1$, $n_2$.
description: 12 pages, Reference updated
Searching for giant planets in the outer Solar System with far-infrared all-sky surveys
Creators: name: Sedgwick, Chris
name: Serjeant, Stephen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We have explored a method for finding giant planets in the outer Solar System by detecting their thermal emission and proper motion between two far-infrared all-sky surveys separated by 23.4 years, taken with the InfraRed Astronomical Satellite (IRAS) and the AKARI Space Telescope. An upper distance limit of about 8,000 AU is given by both the sensitivities of these surveys and the distance at which proper motion becomes too small to be detected. This paper covers the region from 8,000 AU to 700 AU. We have used a series of filtering and SED-fitting algorithms to find candidate pairs, whose IRAS and AKARI flux measurements could together plausibly be fitted by a Planck thermal distribution for a likely planetary temperature. Theoretical studies have placed various constraints on the likely existence of unknown planets in the outer solar system. The main observational constraint to date comes from a WISE study: an upper limit on an unknown planet's mass out into the Oort cloud. Our work confirms this result for our distance range, and provides additional observational constraints for lower distances and planetary masses, subject to the proviso that the planet is not confused with Galactic cirrus. We found 535 potential candidates with reasonable spectral energy distribution (SED) fits. Most would have masses close to or below that of Neptune (~0.05 Jupiter mass), and be located below 1,000 AU. However, examination of the infrared images of these candidates suggests that none is sufficiently compelling to warrant follow-up, since all are located inside or close to cirrus clouds, which are most likely the source of the far-infrared flux.
description: 12 pages, 8 figures, accepted by MNRAS
Edge-of-the-Multis: Evidence for a Transition in the Outer Architectures of Compact Multi-Planet Systems
Creators: name: Millholland, Sarah C.
name: He, Matthias Y.
name: Zink, Jon K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Although the architectures of compact multiple-planet systems are well-characterized, there has been little examination of their "outer edges", or the locations of their outermost planets. Here we present evidence that the observed high-multiplicity Kepler systems truncate at smaller orbital periods than can be explained by geometric and detection biases alone. To show this, we considered the existence of hypothetical planets orbiting beyond the observed transiting planets with properties dictated by the "peas-in-a-pod" patterns of intra-system radius and period ratio uniformity. We evaluated the detectability of these hypothetical planets using (1) a novel approach for estimating the mutual inclination dispersion of multi-transiting systems based on transit chord length ratios and (2) a model of transit probability and detection efficiency that accounts for the impacts of planet multiplicity on completeness. Under the assumption that the "peas-in-a-pod" patterns continue to larger orbital separations than observed, we find that $\gtrsim35\%$ of Kepler compact multis should possess additional detected planets beyond the known planets, constituting a $\sim7σ$ discrepancy with the lack of such detections. These results indicate that the outer ($\sim100-300$ days) regions of compact multis experience a truncation (i.e. an "edge-of-the-multis") or a significant breakdown of the "peas-in-a-pod" patterns, in the form of systematically smaller radii or larger period ratios. We outline future observations that can distinguish these possibilities, and we discuss implications for planet formation theories.
description: Accepted to AJ
The Inert Drift Atlas Model
Creators: name: Banerjee, Sayan
name: Budhiraja, Amarjit
name: Estevez, Benjamin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J60, 60K35, 60J25, 60H10

description: Consider a massive (inert) particle impinged from above by N Brownian particles that are instantaneously reflected upon collision with the inert particle. The velocity of the inert particle increases due to the influence of an external Newtonian potential (e.g. gravitation) and decreases in proportion to the total local time of collisions with the Brownian particles. This system models a semi-permeable membrane in a fluid having microscopic impurities (Knight (2001)). We study the long-time behavior of the process $(V,\mathbf{Z})$, where $V$ is the velocity of the inert particle and $\mathbf{Z}$ is the vector of gaps between successive particles ordered by their relative positions. The system is not hypoelliptic, not reversible, and has singular form interactions. Thus the study of stability behavior of the system requires new ideas. We show that this process has a unique stationary distribution that takes an explicit product form which is Gaussian in the velocity component and Exponential in the other components. We also show that convergence in total variation distance to the stationary distribution happens at an exponential rate. We further obtain certain law of large numbers results for the particle locations and intersection local times.
description: 55 pages, to appear in Communications in Mathematical Physics
Biophysical studies of fetal lambs in utero
Creators: name: Schier, Mark Andrew.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Adaptive Graph Convolutional Networks for Weakly Supervised Anomaly Detection in Videos
Creators: name: Cao, Congqi
name: Zhang, Xin
name: Zhang, Shizhou
name: Wang, Peng
name: Zhang, Yanning
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: For weakly supervised anomaly detection, most existing work is limited to the problem of inadequate video representation due to the inability of modeling long-term contextual information. To solve this, we propose a novel weakly supervised adaptive graph convolutional network (WAGCN) to model the complex contextual relationship among video segments. By which, we fully consider the influence of other video segments on the current one when generating the anomaly probability score for each segment. Firstly, we combine the temporal consistency as well as feature similarity of video segments to construct a global graph, which makes full use of the association information among spatial-temporal features of anomalous events in videos. Secondly, we propose a graph learning layer in order to break the limitation of setting topology manually, which can extract graph adjacency matrix based on data adaptively and effectively. Extensive experiments on two public datasets (i.e., UCF-Crime dataset and ShanghaiTech dataset) demonstrate the effectiveness of our approach which achieves state-of-the-art performance.
Internal structure of hexagonal skyrmion lattices in cubic helimagnets
Creators: name: McGrouther, D.
name: Lamb, R. J.
name: Krajnak, M.
name: McFadzean, S.
name: McVitie, S.
name: Stamps, R. L.
name: Leonov, A. O.
name: Bogdanov, A. N.
name: Togawa, Y.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We have utilised a high spatial resolution imaging method, Differential Phase Contrast (DPC) performed in a scanning transmission electron microscope (STEM), for precise measurement of the magnetic induction distribution in skyrmion states in noncentrosymmetric magnetically ordered materials. Applied to investigate the internal structure of hexagonal skyrmion lattice cells, stabilised by an out-plane applied magnetic field in an FeGe nanowedge specimen, mapping of the in-plane component of magnetic induction has yielded "average" skyrmion profiles and observation of internal six-fold symmetry. With increasing field strength, the diameter of "average" skyrmion cores was observed to decrease accompanied by a non-linear variation of the lattice periodicity. Variations in structure for individual skyrmions were studied utilising an advanced DPC detection scheme with a variety of symmetry lowering distortions being observed. Our observations are consistent with a theoretical phenomenological model, which has predicted the structure of hexagonal skyrmion lattice cells and also that twisting states near to the material surfaces provide a basis for energetic stabilisation of the skyrmion lattice over the conical phase. There was good agreement with experiment for predictions of bulk skyrmion structure and their response (core-size & lattice periodicity variation) to an applied field.
On continuum modeling of cell aggregation phenomena
Creators: name: Firooz, Soheil
name: Kaessmair, Stefan
name: Zaburdaev, Vasily
name: Javili, Ali
name: Steinmann, Paul
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Cellular aggregates play a significant role in the evolution of biological systems such as tumor growth, tissue spreading, wound healing, and biofilm formation. Analysis of such biological systems, in principle, includes examining the interplay of cell-cell interactions together with the cell-matrix interaction. These two interaction types mainly drive the dynamics of cellular aggregates which is intrinsically out of equilibrium. Here we propose a non-linear continuum mechanics formulation and the corresponding finite element simulation framework to model the physics of cellular aggregate formation. As an example, we focus in particular on the process of bacterial colony formation as recently studied by Kuan et al. Thereby we describe the aggregation process as an active phase separation phenomenon. We develop a Lagrangian continuum description of the problem which yields a substantial simplification to the formulations of the governing equations. Due to the presence of spatial Hessian and Laplacian operators, a gradient-enhanced approach is required to incorporate C1 continuity. In addition, a robust and efficient finite element formulation of the problem is provided. Taylor-Hood finite elements are utilized for the implementation to avoid instabilities related to the LBB condition. Finally, through a set of numerical examples, the influence of various parameters on the dynamics of the cellular aggregate formation is investigated. Our proposed methodology furnishes a general framework for the investigation of the rheology and non-equilibrium dynamics of cellular aggregates.
Studies of insulin receptors on human platelets in non-diabetic and diabetic subjects
Creators: name: Setiadi, Hendra.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
The Hot Neptune WASP-166~b with ESPRESSO I: Refining the Planetary Architecture and Stellar Variability
Creators: name: Doyle, L.
name: Cegla, H. M.
name: Bryant, E.
name: Bayliss, D.
name: Lafarga, M.
name: Anderson, D. R.
name: Allart, R.
name: Bourrier, V.
name: Brogi, M.
name: Buchschacher, N.
name: Kunovac, V.
name: Lendl, M.
name: Lovis, C.
name: Moyano, M.
name: Roguet-Kern, N.
name: Seidel, J. V.
name: Sosnowska, D.
name: Wheatley, P. J.
name: Acton, J. S.
name: Burleigh, M. R.
name: Casewell, S. L.
name: Gill, S.
name: Goad, M. R.
name: Henderson, B. A.
name: Jenkins, J. S.
name: Tilbrook, R. H.
name: West, R. G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this paper, we present high-resolution spectroscopic transit observations from ESPRESSO of the super-Neptune WASP-166~b. In addition to spectroscopic ESPRESSO data, we analyse photometric data from {\sl TESS} of six WASP-166~b transits along with simultaneous NGTS observations of the ESPRESSO runs. These observations were used to fit for the planetary parameters as well as assessing the level of stellar activity (e.g. spot crossings, flares) present during the ESPRESSO observations. We utilise the Reloaded Rossiter McLaughlin (RRM) technique to spatially resolve the stellar surface, characterising the centre-to-limb convection-induced variations, and to refine the star-planet obliquity. We find WASP-166~b has a projected obliquity of $λ= -15.52^{+2.85}_{-2.76}$$^{\circ}$ and $v\sin(i) = 4.97 \pm 0.09$~kms$^{-1}$ which is consistent with the literature. We were able to characterise centre-to-limb convective variations as a result of granulation on the surface of the star on the order of a few kms$^{-1}$ for the first time. We modelled the centre-to-limb convective variations using a linear, quadratic and cubic model with the cubic being preferred. In addition, by modelling the differential rotation and centre-to-limb convective variations simultaneously we were able to retrieve a potential anti-solar differential rotational shear ($α\sim$ -0.5) and stellar inclination ($i_*$ either 42.03$^{+9.13}_{-9.60}$$^{\circ}$ or 133.64$^{+8.42}_{-7.98}$$^{\circ}$ if the star is pointing towards or away from us). Finally, we investigate how the shape of the cross-correlation functions change as a function of limb angle and compare our results to magnetohydrodynamic simulations.
description: 18 Pages, 13 Figures, 4 Tables. Accepted for publication in MNRAS
The Relationship Between Star-formation Activity and Galaxy Structural Properties in CANDELS and a Semi-analytic Model
Creators: name: Brennan, Ryan
name: Pandya, Viraj
name: Somerville, Rachel S.
name: Barro, Guillermo
name: Bluck, Asa F. L.
name: Taylor, Edward N.
name: Wuyts, Stijn
name: Bell, Eric F.
name: Dekel, Avishai
name: Faber, Sandra
name: Ferguson, Henry C.
name: Koekemoer, Anton M.
name: Kurczynski, Peter
name: McIntosh, Daniel H.
name: Newman, Jeffrey A.
name: Primack, Joel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the correlation of galaxy structural properties with their location relative to the SFR-M* correlation, also known as the star formation "main sequence" (SFMS), in the CANDELS and GAMA surveys and in a semi-analytic model (SAM) of galaxy formation. We first study the distribution of median Sersic index, effective radius, star formation rate (SFR) density and stellar mass density in the SFR-M* plane. We then define a redshift dependent main sequence and examine the medians of these quantities as a function of distance from this main sequence, both above (higher SFRs) and below (lower SFRs). Finally, we examine the distributions of distance from the main sequence in bins of these quantities. We find strong correlations between all of these galaxy structural properties and the distance from the SFMS, such that as we move from galaxies above the SFMS to those below it, we see a nearly monotonic trend towards higher median Sersic index, smaller radius, lower SFR density, and higher stellar density. In the semi-analytic model, bulge growth is driven by mergers and disk instabilities, and is accompanied by the growth of a supermassive black hole which can regulate or quench star formation via Active Galactic Nucleus (AGN) feedback. We find that our model qualitatively reproduces the trends described above, supporting a picture in which black holes and bulges co-evolve, and AGN feedback plays a critical role in moving galaxies off of the SFMS.
description: 25 pages, 17 figures. Accepted for publication in MNRAS
E-RIHS PP User strategy and access policies
Creators: name: Pacheco, Claire
name: Miliani, Costanza
name: De Clercq, Hilde
name: Szikszai, Zita
name: Schmidle, Wolfgang
name: Doherty, Brenda
name: Niccolucci, Franco
name: De Giacomo, Ornela
name: Bertrand, Loïc
name: Detalle, Vincent
name: Petitcol, Rémi
name: Menu, MIchel
name: Pallot-Frossard, Isabelle
name: Lemasson, Quentin
name: Castillejo, Marta
name: Striova, Jana
name: Pezzati, Luca
Publisher: name: Zenodo
Year: 2020
Subjects: Access Policy, User Strategy

description: The present deliverable is about the E-RIHS strategy and policies to enable users’ access to its physical and virtual research facilities. The first section of the present document describes the user access policy for the four E-RIHS platforms: E- RIHS ARCHLAB, E-RIHS DIGILAB, E-RIHS FIXLAB and E-RIHS MOLAB. The second section outlines the stages of the selection procedures. The access policy includes different modes according to the physical or virtual nature of the facilities involved. The first one deals with access to physical platforms such as E-RIHS ARCHLAB, E-RIHS FIXLAB and E-RIHS MOLAB. In this case, access is “Excellence-driven”, i.e. it is based on the scientific quality of the access project proposed by the user and its feasibility. The second one, “Wide access” concerns online access to digital tools and digital heritage research resources accessible via E-RIHS DIGILAB. Such strategies will also include long-term projects and their access modalities. The selection procedure for Excellence-driven access envisages an E-RIHS ERIC peer-reviewing process conducted by external experts. A local technical committee assesses the overall feasibility of the research proposal. The policies reported here comply with the relevant charters on the matter.
 The present deliverable is the result of joint work of the Task leader together with the sub-task leaders for E- RIHS ARCHLAB, E-RIHS DIGILAB, E-RIHS FIXLAB and E-RIHS MOLAB, with contributions by the WP5 leader and the leaders of other tasks/WPs with a scope affecting access provision and the platform coordinators.
Extraterrestrial Axion Search with the Breakthrough Listen Galactic Center Survey
Creators: name: Foster, Joshua W.
name: Witte, Samuel J.
name: Lawson, Matthew
name: Linden, Tim
name: Gajjar, Vishal
name: Weniger, Christoph
name: Safdi, Benjamin R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Axion dark matter (DM) may efficiently convert to photons in the magnetospheres of neutron stars (NSs), producing nearly monochromatic radio emission. This process is resonantly triggered when the plasma frequency induced by the underlying charge distribution approximately matches the axion mass. We search for evidence of this process using archival Green Bank Telescope data collected in a survey of the Galactic Center in the C-Band by the Breakthrough Listen project. While Breakthrough Listen aims to find signatures of extraterrestrial life in the radio band, we show that their high-frequency resolution spectral data of the Galactic Center region is ideal for searching for axion-photon transitions generated by the population of NSs in the inner pc of the Galaxy. We use data-driven models to capture the distributions and properties of NSs in the inner Galaxy and compute the expected radio flux from each NS using state-of-the-art ray tracing simulations. We find no evidence for axion DM and set leading constraints on the axion-photon coupling, excluding values down to the level $g_{a γγ} \sim 10^{-11}$ GeV$^{-1}$ for DM axions for masses between 15 and 35 $μ$eV.
description: 9+23 pages, 3+17 figures
Ovarian follicular kinetics in sheep with different prolificacy
Creators: name: Driancourt, M. A.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Heavy-flavour production in pp collisions and correlations in pp and p-Pb collisions measured with ALICE at the LHC
Creators: name: Colamaria, Fabio
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Thanks to its excellent tracking and particle identification performance, the ALICE detector is capable of measuring D mesons at central rapidity via their hadronic decay channels down to very low transverse momentum. We show an extension of the prompt ${\rm D}^0$ $p_{\rm T}$-differential cross section measurement down to zero transverse momentum, which allows us to determine the $p_{\rm T}$-integrated charm production cross section at central rapidity in pp collisions at $\sqrt{s}$ = 7 TeV. We also present measurements of azimuthal correlations of prompt ${\rm D}^0$, ${\rm D}^+$ and ${\rm D}^{*+}$ mesons with charged hadrons in pp collisions at $\sqrt{s}$ = 7 TeV and p-Pb collisions at $\sqrt{s_{\scriptscriptstyle \rm NN}}$ = 5.02 TeV and compare the results with expectations from models.
description: Proceedings for Strangeness in Quark Matter 2016 conference - 4 pages, 3 figures
A hybrid level-set / embedded boundary method applied to solidification-melt problems
Creators: name: Limare, A.
name: Popinet, S.
name: Josserand, C.
name: Xue, Z.
name: Ghigo, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, we introduce a novel way to represent the interface for two-phase flows with phase change. We combine a level-set method with a Cartesian embedded boundary method and take advantage of both. This is part of an effort to obtain a numerical strategy relying on Cartesian grids allowing the simulation of complex boundaries with possible change of topology while retaining a high-order representation of the gradients on the interface and the capability of properly applying boundary conditions on the interface. This leads to a two-fluid conservative second-order numerical method. The ability of the method to correctly solve Stefan problems, onset dendrite growth with and without anisotropy is demonstrated through a variety of test cases. Finally, we take advantage of the two-fluid representation to model a Rayleigh--Bénard instability with a melting boundary.
30 years, some 700 integrals, and 1 dessert, or: Electroweak two-loop corrections to the Zbb vertex
Creators: name: Dubovyk, I.
name: Freitas, A.
name: Gluza, J.
name: Riemann, T.
name: Usovitsch, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The one-loop corrections to the weak mixing angle $\sin^2θ_{eff}^b$ derived from the $Z{\bar b}b$ vertex, are known since 1985. It took another 30 years to calculate the complete electroweak two-loop corrections to $\sin^2θ_{eff}^b$. The main obstacle was the calculation of the O(700) bosonic two-loop vertex integrals with up to three mass scales, at $s=M_Z^2$. We did not perform the usual integral reduction and master evaluation, but chose a completely numerical approach, using two different calculational chains. One method relies on publicly available sector decomposition implementations. Further, we derived Mellin-Barnes (MB) representations, exploring the publicly available MB suite. We had to supplement the MB suite by two new packages: AMBRE~3, a Mathematica program, for the efficient treatment of non-planar integrals and MBnumerics for advanced numerics in the Minkowskian space-time. Our preliminary result for LL2016, the "dessert", for the electroweak bosonic two-loop contributions to $\sin^2θ_{eff}^b$ is: $Δ\sin^2θ_{eff}^{b(α^2,\rm bos)} = \sin^2θ_W ~ Δκ_b^{(α^2,bos)}$, with $Δκ_b^{(α^2,bos)} = -1.0276 x 10^{-4}$. This contribution is about a quarter of the corresponding fermionic corrections and of about the same magnitude as several of the known higher-order QCD corrections. The $\sin^2θ_{eff}^b$ is now predicited in the Standard Model with a relative error of $10^{-4}$ [1].
description: Contribution to the proceedings of the conference "Loops and Legs in Quantum Field Theory - LL 2016", 24 - 29 April 2016, Leipzig, Germany. Minor corrections in the text, few equations added. Version 2 compared to v.1: typos in eq. 1.24 corrected
The averaging problem on the past null cone in inhomogeneous dust cosmologies
Creators: name: Buchert, Thomas
name: van Elst, Henk
name: Heinesen, Asta
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Cosmological models typically neglect the complicated nature of the spacetime manifold at small scales in order to hypothesize idealized general relativistic solutions for describing the average dynamics of the Universe. Although these solutions are remarkably successful in accounting for data, they introduce a number of puzzles in cosmology, and their foundational assumptions are therefore important to test. In this paper, we go beyond the usual assumptions in cosmology and propose a formalism for averaging the local general relativistic spacetime on an observer's past null cone: we formulate average properties of light fronts as they propagate from a cosmological emitter to an observer. The energy-momentum tensor is composed of an irrotational dust source and a cosmological constant -- the same components as in the $Λ$CDM model for late cosmic times -- but the metric solution is not \emph{a priori}constrained to be locally homogeneous or isotropic. This generally makes the large-scale dynamics depart from that of a simple Friedmann--Lema\^ıtre--Robertson--Walker solution through \emph{backreaction} effects. Our formalism quantifies such departures through a fully covariant system of area-averaged equations on the light fronts propagating towards an observer, which can be directly applied to analytical and numerical investigations of cosmic observables. For this purpose, we formulate light front averages of observable quantities, including the effective angular diameter distance and the cosmological redshift drift and we also discuss the backreaction effects for these observables.
description: 37 pages, 1 figure; matches published version in GRG
Evidence for electronic signature of magnetic transition in topological magnet HoSbTe
Creators: name: Shumiya, Nana
name: Yin, Jia-Xin
name: Chang, Guoqing
name: Yang, Meng
name: Mardanya, Sougata
name: Chang, Tay-Rong
name: Lin, Hsin
name: Hossain, Md Shafayat
name: Jiang, Yu-Xiao
name: Cochran, Tyler A.
name: Zhang, Qi
name: Yang, Xian P.
name: Shi, Youguo
name: Hasan, M. Zahid
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Topological insulators with intrinsic magnetic order are emerging as an exciting platform to realize fundamentally new excitations from topological quantum states of matter. To study these systems and their physics, people have proposed a variety of magnetic topological insulator systems, including HoSbTe, an antiferromagnetic weak topological insulator candidate. In this work, we use scanning tunneling microscopy to probe the electronic structure of HoSbTe with antiferromagnetic and ferromagnetic orders that are tuned by applying an external magnetic field. Although around the Fermi energy, we find minor differences between the quasi-particle interferences under the ferromagnetic and antiferromagnetic orders, deep inside the valance region, a new quasi-particle interference signal emerges with ferromagnetism. This observation is consistent with our first-principles calculations indicating the magnetism-driven transition of the electronic states in this spin-orbit coupled topological magnet.
description: 13 pages, 7 figures
Anomalous Light Scattering by Topological ${\mathcal{PT}}$-symmetric Particle Arrays
Creators: name: Ling, C. W.
name: Choi, Ka Hei
name: Mok, T. C.
name: Zhang, Z. Q.
name: Fung, Kin Hung
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Robust topological edge modes may evolve into complex-frequency modes when a physical system becomes non-Hermitian. We show that, while having negligible forward optical extinction cross section, a conjugate pair of such complex topological edge modes in a non-Hermitian $\mathcal{PT}$-symmetric system can give rise to an anomalous sideway scattering when they are simultaneously excited by a plane wave. We propose a realization of such scattering state in a linear array of subwavelength resonators coated with gain media. The prediction is based on an analytical two-band model and verified by rigorous numerical simulation using multiple-multipole scattering theory. The result suggests an extreme situation where leakage of classical information is unnoticeable to the transmitter and the receiver when such a $\mathcal{PT}$-symmetric unit is inserted into the communication channel.
description: 16 pages, 8 figures
E-RIHS PP D10.3 Report on the implementation and evaluation of communication
Creators: name: Hermon, Sorin
name: Benassi, Laura
name: Koutoupas, Athanasios
name: Andreassi, Elisabetta
Publisher: name: Zenodo
Year: 2020
Subjects: E-RIHS, communication, dissemination, impact

description: The deliverable "Report on the implementation and evaluation of communication" analyses communication and dissemination activities carried out in the E-RIHS PP project and underlines criticalities and possible future implementation. The analytics tools for the website and social media and the feedback reports for events provide, as a result, an overview of the impact of the communication and dissemination during the E-RIHS PP project.
ExoMol line lists XVIII. The high temperature spectrum of VO
Creators: name: McKemmish, Laura K.
name: Yurchenko, Sergei N.
name: Tennyson, Jonathan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: An accurate line list, VOMYT, of spectroscopic transitions is presented for hot VO. The 13 lowest electronic states are considered. Curves and couplings are based on initial {\it ab initio} electronic structure calculations and then tuned using available experimental data. Dipole moment curves, used to obtain transition intensities, are computed using high levels of theory (e.g. MRCI/aug-cc-pVQZ using state-specific or minimal-state CAS for dipole moments). This line list contains over 277 million transitions between almost 640,000 energy levels. It covers the wavelengths longer than 0.29 $μ$m and includes all transitions from energy levels within the lowest nine electronic states which have energies less than 20,000 \cm{} to upper states within the lowest 13 electronic states which have energies below 50,000 \cm{}. The line lists give significantly increased absorption at infrared wavelengths compared to currently available VO line lists. The full line lists is made available in electronic form via the CDS database and at www.exomol.com.
description: MNRAS in press