cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Entropy Production, Hydrodynamics, and Resurgence in the Primordial Quark-Gluon Plasma from Holography
Creators: name: Buchel, Alex
name: Heller, Michal P.
name: Noronha, Jorge
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Microseconds after the Big Bang quarks and gluons formed a strongly-coupled non-conformal liquid driven out-of-equilibrium by the expansion of the Universe. We use holography to determine the non-equilibrium behavior of this liquid in a Friedmann-Lemaitre-Robertson-Walker Universe and develop an expansion for the corresponding entropy production in terms of the derivatives of the cosmological scale factor. We show that the resulting series has zero radius of convergence and we discuss its resurgent properties. Finally, we compute the resummed entropy production rate in de Sitter Universe at late times and show that the leading order approximation given by bulk viscosity effects can strongly overestimate/underestimate the rate depending on the microscopic parameters.
description: 7 pages, 1 figure; v2: various improvements in presentation, title changed by journal, matches the published version
Kagome superconductors AV$_3$Sb$_5$ (A=K, Rb, Cs)
Creators: name: Jiang, Kun
name: Wu, Tao
name: Yin, Jia-Xin
name: Wang, Zhenyu
name: Hasan, M. Zahid
name: Wilson, Stephen D.
name: Chen, Xianhui
name: Hu, Jiangping
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The quasi two-dimensional (quasi-2D) kagome materials AV$_3$Sb$_5$ (A=K, Rb, Cs) were found to be a prime example of kagome superconductors, a new quantum platform to investigate the interplay between electron correlation effects, topology and geometric frustration. In this review, we report recent progress on the experimental and theoretical studies of AV$_3$Sb$_5$ and provide a broad picture of this fast-developing field in order to stimulate an expanded search for unconventional kagome superconductors. We review the electronic properties of AV$_3$Sb$_5$, the experimental measurements of the charge density wave state, evidence of time-reversal symmetry breaking, and other potential hidden symmetry breaking in these materials. A variety of theoretical proposals and models that address the nature of the time-reversal symmetry breaking are discussed. Finally, we review the superconducting properties of AV$_3$Sb$_5$, especially the potential pairing symmetries and the interplay between superconductivity and the charge density wave state.
description: A review on kagome superconductors AV$_3$Sb$_5$, including 14 pages and 9 figures
Industrially Feasible mc-Si Metal Wrap Through (MWT) Solar Cells With High Emitter Sheet Resistances Exceeding 16% Efficiency
Creators: name: Clement, F.
name: Belledin, U.
name: Wotke, E.
name: Menkoe, M.
name: Kubera, T.
name: Hönig, R.
name: Harmel, C.
name: Spitz, M.
name: Wirth, H.
name: Biro, D.
name: Preu, R.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1871-1874
description: On the way to higher efficiencies, back contact solar cells seem to be a promising alternative to conventional screen-printed solar cells. Especially, the MWT (metal wrap through) solar cell concept with only two additional process steps compared with the conventional cell process is appropriate for a fast transfer to industry. Hence, a pilot-line process based on a new contact design was developed and tested. Several batches of about 1000 mc-Si MWT solar cells were successfully produced at ISE’s PV-TEC pilot-line. Cell efficiencies up to 16.2% are achieved with an emitter sheet resistance of 65 Ω/sq. Compared with conventionally processed cells made of the same mc Si-block, an efficiency gain up to 0.5% is observed. The main reason for the high efficiency is a high short circuit current due to the absence of the bus bars on the front. Furthermore, a cell interconnection only on the back is possible and thus less serial resistance losses in the tabs. Therefore, an additional efficiency gain of about 0.2%abs. compared with standard module technology is achieved using the new MWT tabbing technology.
T-CNN: Tubelets with Convolutional Neural Networks for Object Detection from Videos
Creators: name: Kang, Kai
name: Li, Hongsheng
name: Yan, Junjie
name: Zeng, Xingyu
name: Yang, Bin
name: Xiao, Tong
name: Zhang, Cong
name: Wang, Zhe
name: Wang, Ruohui
name: Wang, Xiaogang
name: Ouyang, Wanli
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The state-of-the-art performance for object detection has been significantly improved over the past two years. Besides the introduction of powerful deep neural networks such as GoogleNet and VGG, novel object detection frameworks such as R-CNN and its successors, Fast R-CNN and Faster R-CNN, play an essential role in improving the state-of-the-art. Despite their effectiveness on still images, those frameworks are not specifically designed for object detection from videos. Temporal and contextual information of videos are not fully investigated and utilized. In this work, we propose a deep learning framework that incorporates temporal and contextual information from tubelets obtained in videos, which dramatically improves the baseline performance of existing still-image detection frameworks when they are applied to videos. It is called T-CNN, i.e. tubelets with convolutional neueral networks. The proposed framework won the recently introduced object-detection-from-video (VID) task with provided data in the ImageNet Large-Scale Visual Recognition Challenge 2015 (ILSVRC2015).
description: ImageNet 2015 VID challenge tech report. The first two authors share co-first authorship. Accepted as a Transaction paper by T-CSVT Special Issue on Large Scale and Nonlinear Similarity Learning for Intelligent Video Analysis
Translations from Arabic in the Czech Republic 2010–2020
Creators: name: Provazníková, Adéla
Publisher: name: figshare
Year: 2022
Subjects: subject: 200323 Translation and Interpretation Studies
subject: FOS: Languages and literature
subject: 200523 Middle Eastern Literature
subject: 200318 Middle Eastern Languages

description: This study traces the translation flows of Arabic literature into Czech.
Use of Phase Change Material in Order to Maintain the Temperature of Integrated PV Modules at a Reasonable Level
Creators: name: Vijayakumar, A.
name: Clerc, S.
name: Boillot, B.
name: Bontemps, A.
name: Jay, F.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Components for PV Systems
PV Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 4125-4128
description: High operating temperatures reduce the efficiency of polycrystalline photovoltaic systems. It is a major
problem in building-integrated photovoltaic devices in which free convection cooling is limited. Phase change
materials allow thermal energy to be stored at constant temperature during their phase change. This study consists in
coupling a photovoltaic system and a phase change material in order to should reduce the temperature of the
photovoltaic surface and thus improve the electrical production of the system.
Experimental tests and numerical model have been led simultaneously, in order to, first, deal with the feasibility and
the technical barriers of this solution and secondly quantify the coupling impact with several phase change materials.
This paper describes the first experimental campaign led under an artificial sunshine bench, as well as the first
numerical models achieved.
Integrability of Nonholonomic Heisenberg Type Systems
Creators: name: Grigoryev, Yury A.
name: Sozonov, Alexey P.
name: Tsiganov, Andrey V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We show that some modern geometric methods of Hamiltonian dynamics can be directly applied to the nonholonomic Heisenberg type systems. As an example we present characteristic Killing tensors, compatible Poisson brackets, Lax matrices and classical $r$-matrices for the conformally Hamiltonian vector fields obtained in a process of reduction of Hamiltonian vector fields by a nonholonomic constraint associated with the Heisenberg system.
Chern insulator with large Chern numbers. Chiral Majorana fermion liquid
Creators: name: Karnaukhov, Igor N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In the framework of Hofstadter`s approach we provide a detailed analysis of a realization of exotic topological states such as the Chern insulator with large Chern numbers. In a transverse homogeneous magnetic field a one-particle spectrum of fermions transforms to an intricate spectrum with a fine topological structure of the subbands. In a weak magnetic field $H$ for a rational magnetic flux, a topological phase with a large Chern number is realized near the half filling. There is an abnormal behavior of the Hall conductance ${σ_{xy}\simeq \frac{e}{2 H}}$. At half-filling, the number of chiral Majorana fermion edge states increases sharply forming a new state, called the chiral Majorana fermion liquid.
description: 5 pages, 5 figures
Galileon Radiation from a Spherical Collapsing Shell
Creators: name: Martin-Garcia, Javier
name: Vazquez-Mozo, Miguel A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Galileon radiation in the collapse of a thin spherical shell of matter is analyzed. In the framework of a cubic Galileon theory, we compute the field profile produced at large distances by a short collapse, finding that the radiated field has two peaks traveling ahead of light fronts. The total energy radiated during the collapse follows a power law scaling with the shell's physical width and results from two competing effects: a Vainshtein suppression of the emission and an enhancement due to the thinness of the shell.
description: 23 pages, 3 figures. v3: minor changes, reference added. It matches the version published in Journal of High Energy Physics
Heiner Fangerau, Anke Dreier-Horning, Volker Hess, Karsten Laudien, Maike Rotzoll (Hrsg). Leid und Unrecht. Kinder und Jugendliche in Behindertenhilfe und Psychiatrie der BRD und DDR 1949 bis 1990. Köln, 2021
Creators: name: Todorov, Georgi
Publisher: name: Zenodo
Year: 2023

description: Book review.
Dynamic ILM – An Approach to Infrared-Camera Based Dynamical Lifetime Imaging
Creators: name: Ramspeck, K.
name: Bothe, K.
name: Schmidt, J.
name: Brendel, R.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 871-876
description: We present a calibration-free dynamic carrier lifetime imaging approach, based on the infrared lifetime
mapping (ILM) technique. Introducing the dynamic evaluation procedure we show that the lifetime is determined analytically
from the signal ratio of infrared camera images recorded directly after turning on an excitation source and after
steady-state conditions are established within the sample. A comparison with microwave-detected photo conductance decay
measurements shows an excellent quantitative agreement. We show that signal blurring is a fundamental issue of the
dynamic approach and introduce a method to overcome this limitation. This method combines dynamic and static-ILM
measurements and allows for high resolution lifetime measurements in measurement times as fast as 1 sec per wafer.
The minimum mass of a charged spherically symmetric object in $D$ dimensions, its implications for fundamental particles, and holography
Creators: name: Burikham, Piyabut
name: Cheamsawat, Krai
name: Harko, Tiberiu
name: Lake, Matthew J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We obtain bounds for the minimum and maximum mass/radius ratio of a stable, charged, spherically symmetric compact object in a $D$-dimensional space-time in the framework of general relativity, and in the presence of dark energy. The total energy, including the gravitational component, and the stability of objects with minimum mass/radius ratio is also investigated. The minimum energy condition leads to a representation of the mass and radius of the charged objects with minimum mass/radius ratio in terms of the charge and vacuum energy only. As applied to the electron in the four-dimensional case, this procedure allows one to re-obtain the classical electron radius from purely general relativistic considerations. By combining the lower mass bound, in four space-time dimensions, with minimum length uncertainty relations (MLUR) motivated by quantum gravity, we obtain an alternative bound for the maximum charge/mass ratio of a stable, gravitating, charged quantum mechanical object, expressed in terms of fundamental constants. Evaluating this limit numerically, we obtain again the correct order of magnitude value for the charge/mass ratio of the electron, as required by the stability conditions. This suggests that, if the electron were either less massive (with the same charge) or if its charge were any higher (for fixed mass), a combination of electrostatic and dark energy repulsion would destabilize the Compton radius. In other words, the electron would blow itself apart. Our results suggest the existence of a deep connection between gravity, the presence of the cosmological constant, and the stability of fundamental particles.
description: 24 pages, no figures. Published version (+ additional references)
IEC Certification and Extended Ageing Test of NICE Modules
Creators: name: Dupuis, J.
name: Saint-Sernin, E.
name: Bamberg, K.
name: Einhaus, R.
name: Pilat, E.
name: Vachez, A.
name: Bussery, D.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Components for PV Systems
PV Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 4148-4151
description: Apollon Solar’s NICE (New Industrial Solar Cell Encapsulation) module technology is an innovative
technology to encapsulate and electrically interconnect solar cells without neither soldering nor encapsulant. An organic edge
sealing delimits the internal volume in which an underpressure is created, allowing to establish the electrical contact between
solar cells and interconnectors by pressure. This technology represents a completely new approach for the solar cell
encapsulation: besides industrial and cost advantages, a better long term module performance stability and an improved
lifetime are expected.
The IEC certification of this technology represents a major step in its development, in order to prove the product
robustness. This article present the results of the first certification process according to IEC of NICE modules manufactured
with our prototype production line designed by Vincent Industrie and installed at INES. The certification is carried out by the
TÜV Rheinland in Cologne, and shows a very high performance stability, with a maximal power degradation of 2 % (while
IEC norms require a degradation lower than 5%).
In addition to the IEC tests, we also present results of several largely extended mechanical and ageing tests carried out at
INES and TÜV Rheinland. We notably obtained remarkable results, with a power degradation after 1000 thermal cycling
lower than 2%.
Solar Cell Process Development in the European Integrated Project CrystalClear
Creators: name: Beaucarne, G.
name: John, J.
name: Choulat, P.
name: Ma, Y.
name: Russell, R.
name: Romijn, I.
name: Weeber, A.W.
name: Hofmann, M.
name: Preu, R.
name: Slaoui, A.
name: Le Quang, N.
name: Nichiporuk, O.
name: Del Cañizo, C.
name: Pan, A.
name: Solheim, H.J.
name: Evju, J.
name: Nagel, H.
name: Horzel, J.
name: Bitnar, B.
name: Heemeier, M.
name: Weber, T.
name: Raabe, B.
name: Haverkamp, H.
name: Strümpel, C.
name: Junge, J.
name: Riegel, S.
name: Seren, S.
name: Hahn, G.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 958-962
description: CrystalClear is a large integrated project funded by the European Commission that aims to drastically reduce the cost of crystalline Si PV modules, down to 1 Euro/Wp. Among the different subprojects, the one dealing with the development of advanced solar cells is relatively large (with 11 partners out of the 15 Crystal Clear partners taking part) and has a crucial role. The goal of the subproject is to develop cell design concepts and manufacturing processes that would enable a reduction in the order of 40% of the cell processing costs per Wp. In this paper, we give an overview of all the development work that has taken place in the CrystalClear solar cells subproject so far. World class results have been achieved, particularly on high efficiency cells on Si ribbons, and on industrial-type
solar cells on very thin (120 μm thick) substrates.
The effect of environment on the structure of disc galaxies
Creators: name: Pranger, Florian
name: Trujillo, Ignacio
name: Kelvin, Lee S.
name: Cebrián, María
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the influence of environment on the structure of disc galaxies, using \texttt{IMFIT} to measure the g- and r-band structural parameters of the surface-brightness profiles for $\sim$700 low-redshift (z$
description: accepted, MNRAS, January 19, 2017
High-Efficient Ultra-Thin Solar Cells
Creators: name: Collin, S.
name: Sauvan, C.
name: Colin, C.
name: Massiot, I.
name: Pardo, F.
name: Bardou, N.
name: Lalanne, P.
name: Pelouard, J.-L.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
New Materials, Cells and Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 265-268
description: Next generations of solar cells require optical management at the sub-wavelength scale. In this regime,
conventional light trapping techniques based on anti-reflection coatings and scattering structures are no more
efficient. In this paper, we propose a multi-resonant ultra-thin solar cell with 25 nm-thick GaAs absorber. Strong
optical confinement is achieved by metallic nanostructures. High absorption efficiency and low metal absorption
losses are demonstrated numerically in the 500-800 nm wavelength range. The predicted efficiency of the ultra-thin
solar cell is 17 %, with a nearly 100-fold decrease in absorber thickness compared to most thin-film photovoltaic
devices.
Standing Waves Braneworlds
Creators: name: Gogberashvili, Merab
name: Mantidze, Irakli
name: Sakhelashvili, Otari
name: Shengelia, Tsotne
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The class of non-stationary braneworld models generated by the coupled gravitational and scalar fields is reviewed. The model represents a brane in a space-time with single time and one large (infinite) and several small (compact) space-like extra dimensions. In some particular cases the model has the solutions corresponding to the bulk gravi-scalar standing waves bounded by the brane. Pure gravitational localization mechanism of matter particles on the node of standing waves, where the brane is placed, is discussed. Cosmological applications of the model also considered.
description: Journal version of the review paper, 39 pages, 15 figures
A distance constrained synaptic plasticity model of C. elegans neuronal network
Creators: name: Badhwar, Rahul
name: Bagler, Ganesh
Publisher: name: arXiv
Year: 2016
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Biological Physics (physics.bio-ph)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Brain research has been driven by enquiry for principles of brain structure organization and its control mechanisms. The neuronal wiring map of C. elegans, the only complete connectome available till date, presents an incredible opportunity to learn basic governing principles that drive structure and function of its neuronal architecture. Despite its apparently simple nervous system, C. elegans is known to possess complex functions. The neuronal architecture forms an important underlying framework which specifies phenotypic features associated to sensation, movement, conditioning and memory. In this study, with the help of graph theoretical models, we investigated the C. elegans neuronal network to identify network features that are critical for its control. The 'driver neurons' are associated with important biological functions such as reproduction, signalling processes and anatomical structural development. We created 1D and 2D network models of C. elegans neuronal system to probe the role of features that confer controllability and small world nature. The simple 1D ring model is critically poised for the number of feed forward motifs, neuronal clustering and characteristic path-length in response to synaptic rewiring, indicating optimal rewiring. Using empirically observed distance constraint in the neuronal network as a guiding principle, we created a distance constrained synaptic plasticity model that simultaneously explains small world nature, saturation of feed forward motifs as well as observed number of driver neurons. The distance constrained model suggests optimum long distance synaptic connections as a key feature specifying control of the network.
description: Main Manuscript (9 pages, 6 Figures), Supplementary Data (11 pages, 7 Figures, 3 Tables); Manuscript revised for typos and inclusion of color figures
Progress in the Surface Passivation of Silicon Solar Cells
Creators: name: Schmidt, J.
name: Merkle, A.
name: Bock, R.
name: Altermatt, P.P.
name: Cuevas, A.
name: Harder, N.P.
name: Hoex, B.
name: Van De Sanden, R.
name: Kessels, E.
name: Brendel, R.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 974-981
description: In order to increase the efficiency of silicon-wafer-based solar cells in production well above 20%, it is indispensable to improve the currently applied level of surface passivation at the front as well as at the rear of the
cells. This paper focuses on two main challenges: (i) the low-temperature passivation of lowly doped p-type silicon surfaces at the cell rear and (ii) the passivation of highly boron-doped p+ emitter surfaces as used at the front of solar cells on high-lifetime n-type silicon wafers. In the past, low surface recombination velocities (< 20 cm/s) have been achieved on low-resistivity (~1 Ωcm) p-type silicon using plasma-enhanced chemical-vapour-deposited (PECVD) silicon nitride (SiNx) as well as amorphous silicon (a-Si). However, the high density of fixed positive charges within the PECVD-SiNx layer induces an inversion layer at the rear of p-type Si cells, producing a detrimental parasitic shunting, which reduces the short-circuit current density by up to 3 mA/cm2. The passivation quality of a-Si on the other hand is very temperature sensitive. More recently it has been shown that atomic-layer-deposited (ALD) aluminium oxide (Al2O3) provides an outstanding level of surface passivation, which can be attributed to its extremely high negative fixed charge density in combination with the very gentle deposition technique ALD, leading to low interface state densities. The application of these ALD-Al2O3 layers to the rear of p-type solar cells shows that this new passivation scheme is indeed suitable for high efficiencies and that due to the large negative fixed charge density no parasitic shunting occurs. We also demonstrate that ALD-Al2O3 seems to be the ideal passivation layer for borondoped p+ emitter surfaces. In a direct comparison with other passivation schemes, it is found that Al2O3 even outperforms optimized thermally grown SiO2 and opens the possibility of achieving very large open-circuit voltages up to Voc = 740 mV.
String Consistency, Heavy Exotics, and the $750$ GeV Diphoton Excess at the LHC
Creators: name: Cvetič, Mirjam
name: Halverson, James
name: Langacker, Paul
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: String consistency conditions are stronger than anomaly cancellation and can require the addition of exotics in the visible sector. We study such exotics and demonstrate that they may account for the modest excess at $750$ GeV in recent diphoton resonance searches performed by the ATLAS and CMS collaborations. In a previous analysis of type II MSSM D-brane quivers we systematically added up to five exotics for the sake of satisfying string consistency conditions. Using this dataset, we demonstrate that 89780 of the 89964 quivers have exotics, 78155 of which include singlets that may couple to MSSM or exotic multiplets with coupling structures governed by $U(1)$ symmetries that are often anomalous. We demonstrate that certain sets of exotics are far preferred over others and study the structure of singlet couplings to heavy exotics carrying standard model charges. Typical possibilities include singlets that may decay to vector-like quarks and / or vector-like leptons and subsequently to two photons. We show that a narrow width diphoton excess can be accounted for while evading existing bounds if multiple exotics are added, with vector-like leptons of mass $M_L\lesssim 375$ GeV and vector-like quarks with masses up to $\simeq 3$ TeV. However, a large width $(Γ/M \sim 0.06)$, as suggested by the ATLAS data, cannot be easily accommodated in this framework. Renormalization group equations with GUT-scale boundary conditions show that these supersymmetric models are perturbative and stable. Type IIA compactifications on toroidal orbifolds allow for $O(10)$ Yukawa couplings in the ultraviolet. We also discuss the possibility of accounting for the diphoton excess in a low string scale scenario via the decay of string axions.
description: 29 pages. v2: Fortsch. der Phys. version. Text overlap expected due to merge with arXiv:1602.06257
Quantum vacuum excitation of a quasi-normal mode in an analog model of black hole spacetime
Creators: name: Jacquet, Maxime J
name: Giacomelli, Luca
name: Valnais, Quentin
name: Joly, Malo
name: Claude, Ferdinand
name: Giacobino, Elisabeth
name: Glorieux, Quentin
name: Carusotto, Iacopo
name: Bramati, Alberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Vacuum quantum fluctuations near horizons are known to yield correlated emission by the Hawking effect. We use a driven-dissipative quantum fluid of microcavity polaritons as an analog model of a quantum field theory on a black-hole spacetime and numerically calculate correlated emission. We show that, in addition to the Hawking effect at the sonic horizon, quantum fluctuations may result in a sizeable stationary excitation of a quasi-normal mode of the field theory. Observable signatures of the excitation of the quasi-normal mode are found in the spatial density fluctuations as well as in the spectrum of Hawking emission. This suggests an intrinsic fluctuation-driven mechanism leading to the quantum excitation of quasi-normal modes on black hole spacetimes.
description: Version accepted for publication
Novel halos in light kaonic nuclei as an indicator of nuclear equation of state at supra-normal densities
Creators: name: Rong-Yao, Yang
name: Wei-Zhou, Jiang
name: Si-Na, Wei
name: Dong-Rui, Zhang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The sensitive correlations between the low-density halo structure and the high-density properties of the nuclear equation of state (EOS) are constructed in light kaonic nuclei with the relativistic mean-field theory. More specifically, the $1p_{1/2}$ halo spreads out linearly with increasing the pressure and sound velocity square at supra-normal densities and quadratically with decreasing the incompressibility at saturation density. These results suggest that the novel halo in light kaonic nuclei can serve as a sensitive indicator of the nuclear EOS of symmetric matter at supra-normal densities.
description: 5 pages, 4 figures
Efficient and Robust Dye Sensitized Solar Cells and Modules
Creators: name: Kroon, J.M.
name: Sommeling, P.M.
name: Bakker, N.J.
name: Van Mansom, H.
name: Hinsch, A.
name: Veurman, W.
name: Pettersson, H.
name: Gruszecki, T.
name: O'Regan, B.C.
name: Sauvage, F.
name: Zakeeruddin, S.M.
name: Grätzel, M.
name: Palomares, E.
name: Clifford, J.
name: Martínez, E.
name: Torres, T.
name: Feigenson, M.
name: Breen, B.
name: Vallon, S.
name: Logunov, S.
name: Spratt, M.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
Organic-based PV

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 306-311
description: This paper describes the progress of the research and development that is carried out by a consortium
in the frame of the European project ROBUST DSC. The project spans a wide range of activities from basic research
including innovative materials development, advanced characterization, and predictive modeling to more applied
technology development including aspects like up scaling of fabrication technology and accelerated and outdoor
lifetime testing of representative module prototypes. The combined efforts have led to maximum power conversion
efficiencies under full sunlight of >12.0 % for single cells with active areas < 0.2 cm2 and total area module
efficiencies between 4 and 5 % for aperture areas of up to 225 cm2. Accelerated life time testing at elevated
temperatures and continuous illumination reveals dynamic ageing patterns with negligible degradation after 1000
hours of ageing for all investigated cell and module designs up to temperatures of 60 °C, storage up to 85 oC resulted
in typically 5-20 % decrease of performance, depending on design and materials.
title: Comparative study of Economic Adjustment and Housing Quality of Migrants and Natives in the State of Virginia
Creators: name: Unal, Bayram
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1999

description: This research has directed attention towards comparing and understanding the characteristics of both native and migrant populations and both recent and long-term migrant populations in the state of Virginia. The research question is: how does migrant population differ from native population? And how do recent migrants differ from long-term migrants in terms of their employment status, occupation, income, home ownership, quality of housing and amount of rent. This study utilizes data from the 5 percent sample of the U.S. 1990 Census. Cross tabulation and analysis of variance are used to compare migrant with native population and recent migrants with long-term migrants.
Antiskyrmions and their electrical footprint in crystalline mesoscale structures of Mn$_{1.4}$PtSn
Creators: name: Winter, Moritz
name: Goncalves, Francisco J. T.
name: Soldatov, Ivan
name: He, Yangkun
name: Céspedes, Belén E. Zúňiga
name: Milde, Peter
name: Lenz, Kilian
name: Hamann, Sandra
name: Uhlarz, Marc
name: Vir, Praveen
name: König, Markus
name: Moll, Philip J. W.
name: Schlitz, Richard
name: Goennenwein, Sebastian T. B.
name: Eng, Lukas M.
name: Schaefer, Rudolf
name: Wosnitza, Jochen
name: Felser, Claudia
name: Gayles, Jacob
name: Helm, Toni
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Skyrmionic materials hold the potential for future information technologies, such as racetrack memories. Key to that advancement are systems that exhibit high tunability and scalability, with stored information being easy to read and write by means of all-electrical techniques. Topological magnetic excitations such as skyrmions and antiskyrmions, give rise to a characteristic topological Hall effect. However, the electrical detection of antiskyrmions, in both thin films and bulk samples has been challenging to date. Here, we apply magneto-optical microscopy combined with electrical transport to explore the antiskyrmion phase as it emerges in crystalline mesoscale structures of the Heusler magnet Mn$_{1.4}$PtSn. We reveal the Hall signature of antiskyrmions in line with our theoretical model, comprising anomalous and topological components. We examine its dependence on the vertical device thickness, field orientation, and temperature. Our atomistic simulations and experimental anisotropy studies demonstrate the link between antiskyrmions and a complex magnetism that consists of competing ferromagnetic, antiferromagnetic, and chiral exchange interactions, not captured by micromagnetic simulations.
description: 30 pages, 4 figures, Supplementary Information with additional 22 pages and 16 figures
Solar Cell Progress by Process Evolution
Creators: name: Münzer, K.A.
name: Winstel, M.G.
name: Krause, A.
name: Schlosser, R.E.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1875-1878
description: Regarding cost and effectiveness economical and industrially compatible fabrication processes are required, in contrast to complex and expensive processes, which are often used for the fabrication of high efficiency solar cells. Therefore advanced cell technologies like boron BSF, blue responsive and locally selective high doped emitters and fine line screen printing metallization were further developed at SolarWorld and best solar cell efficiencies of 18.7 % on p-type wafers were reproducibly manufactured. By application of these technologies also bifacial cells with over 18 % front side illumination cell efficiency and additionally about 11.5 % rear side illumination cell efficiency could be fabricated. Moreover, to avoid light induced degradation high efficiency n-type silicon solar cells could be produced by application of a moderate adaptation of the existing fabrication processes for p-type solar cells and best n-type rear side emitter solar cells of 18.3 % efficiency were achieved. Based on this rear side emitter design, the technology could be further developed towards the fabrication of back contact solar cells by implementation of a rear side emitter patterning step and a translation of the base contact to the patterned rear side. Thus, complete back contact cells could be fabricated. Apart from low fill factors due to the pure screen printing metallization, back contact solar cell efficiencies up 11.5 % with purely screen printed contacts and up to 13 % after metal plating were achieved in first runs, with a potential of over 15.5 %, assuming cell fill factors of 75 %.
RDMkit: The Research Data Management Toolkit for Life Sciences
Creators: name: Alper, Pinar
name: Nazeefa Fatima
name: Goble, Carole
Publisher: name: Zenodo
Year: 2023

description: RDMkit talk given at the 1st Conference on Research Data Infrastructure CoRDI 2023.
description: ELIXIR-CONVERGE has received funding from the European Union's Horizon 2020 Research and Innovation programme under grant agreement No 871075
title: Identification and phylogenetic analysis of morphologically similar naked amoebae using the ssRNA
Creators: name: Sims, Gary Patrick
Publisher: name: University of Glasgow
Year: 1997
Subjects: subject: Microbiology.

description: Flat, fan-shaped amoebae are common in many aquatic habitats where they play an important role in microbial food webs. This is particularly true for benthic sediments where they are major consumers of bacteria. However, ecological studies are hindered by difficulties associated with detecting and identifying these small organisms. This project was the first molecular study to examine phylogenetic relationships among these morphologically similar amoebae, and to assess the utility of a molecular marker for identification purposes. Restriction analyses of the small-subunit ribosomal rRNA (ssrRNA) gene from 15 strains demonstrated that there was a high degree of sequence diversity among fan-shaped amoebae, and this form of analysis may prove to be a useful ecological tool for the unambiguous identification of these organisms. The primary and secondary structure of the ssrRNA gene from one representative fan-shaped amoeba, Vannella anglica, was determined. The ssrRNA was 1962 nucleotides in length with a low G+C content of 37.1%. Several regions were recognised which may be targeted by oligonucleotide probes for rapid identification in mixed cultures. Phylogeny inference programs using sequence data suggest that the fan-shaped amoebae branched from the eukaryotic tree before the divergence of the alveolates, fungi, plants and animals. Vannella anglica did not associate with Acanthamoeba or Hartmannella which indicates that the fan-shaped amoebae form a separate amoeboid lineage, and the subclass Gymnamoebia is polyphyletic. Phylogenetic analysis of 12 morphologically similar fan-shaped Vannella and Platyamoeba, using partial ssrRNA sequence analysis, suggested that the cell surface structure may not be a rigid diagnostic feature for the classification of these organisms. Moreover, the molecular and ultrastructural data suggest that one common, small, unidentified fan-shaped amoeba is not related to other Vannella and Platyamoeba species, and probably represents a new genus.
Global well-posedness and scattering for the radial, defocusing, cubic wave equation with almost sharp initial data
Creators: name: Dodson, Benjamin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35L71, 35L05

description: In this paper we prove that the cubic wave equation is globally well - posed and scattering for radial initial data lying in a slightly supercritical Sobolev space, and a weighted Sobolev space.
description: 48 pages
Improved Photon Upconversion in Amorphous Silicon Solar Cells
Creators: name: De Wild, J.
name: Meijerink, A.
name: Rath, J.K.
name: Van Sark, W.G.J.H.M.
name: Schropp, R.E.I.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
New Materials, Cells and Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 255-259
description: In this paper we applied two different upconverter materials (Gd2O2S: Er3+, Yb3+ and -NaYF4:
Er3+ 2%, Yb3+ 18%) on solar cells and investigated the response of the upconverter for two types of solar cells,
flat solar cells and solar cells made on textured glass. The flat solar cells are made in such a way that the intensity
of 980 nm light reaching the upconverter layer is still 84% of the incident intensity. Due to the non-linear nature
of upconverters, the EQE for sub band gap light is expected to be superior for flat solar cells in comparison to that
of standard solar cells made on textured glass. Due to the low response of the upconverter in -NaYF4 the
differences between the flat and textured solar cells could not be detected. However, for the upconverter in
Gd2O2S it is shown that the flat solar cells indeed perform better, up to the point where saturation sets in.
Optical sensing of fractional quantum Hall effect in graphene
Creators: name: Popert, A.
name: Shimazaki, Y.
name: Kroner, M.
name: Watanabe, K.
name: Taniguchi, T.
name: Imamoğlu, A.
name: Smoleński, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Graphene and its van der Waals (vdW) heterostructures provide a unique and versatile playground for explorations of strongly correlated electronic phases, ranging from unconventional fractional quantum Hall (FQH) states in a monolayer system to a plethora of superconducting and insulating states in twisted bilayers. However, the access to those fascinating phases has been thus far entirely restricted to transport techniques, due to the lack of a robust energy bandgap that makes graphene hard to access optically. Here we demonstrate an all-optical, non-invasive spectroscopic tool for probing electronic correlations in graphene using excited Rydberg excitons in an adjacent transition metal dichalcogenide monolayer. Due to their large Bohr radii, Rydberg states are highly susceptible to the compressibility of graphene electrons, allowing us to detect the formation of odd-denominator FQH states at high magnetic fields. Owing to its sub-micron spatial resolution, the technique we demonstrate circumvents spatial inhomogeneities in vdW structures, and paves the way for optical studies of correlated states in twisted bilayer graphene and other optically inactive atomically-thin materials.
description: Main text: 6 pages, 3 figures; Supplementary Information: 23 pages, 12 figures
Industrial-Type PERC Solar Cell: Towards 80 Micron Thickness
Creators: name: Ma, Y.
name: Choulat, P.
name: Agostinelli, G.
name: John, J.
name: Loozen, X.
name: Beaucarne, G.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1193-1196
description: The fabrication of solar cells on thin (below 150 μm) and ultrathin (below 100 μm) Si wafers has received much attention in recent years due to the shortage and the high cost of Si feedstock. However, it is widely recognized that some modifications of the standard industrial solar cell structure and of the process sequence have to be made in order to keep the efficiency and yield high. Industrial-type passivated emitter and rear cell, or i-PERC in short, seems to be a very attractive candidate thanks to the improved rear surface passivation, the reduced cell bowing, and its compatibility with the present industrial solar cell production. In the i-PERC cell, the rear side consists of a dielectric/SiNx passivation stack which is locally opened by laser ablation. A localized back surface field (BSF) is formed in the openings after metallization and co-firing, instead of the formation of a full Al BSF as in the standard industrial Si solar cell. In this paper, the latest results of i-PERC solar cells processed on 80 μm thick 78 cm2 monocrystalline Si wafers will be reported. Furthermore, the formation of the local BSF, the impacts of the dielectric layer thickness and the contact pitch on the open circuit voltage and short circuit current will also be investigated and discussed.
Symbiotic Cell Differentiation and Cooperative Growth in Multicellular Aggregates
Creators: name: Yamagishi, Jumpei F
name: Saito, Nen
name: Kaneko, Kunihiko
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cell Behavior (q-bio.CB)
subject: Biological Physics (physics.bio-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: As cells grow and divide under a given environment, they become crowded and resources are limited, as seen in bacterial biofilms and multicellular aggregates. These cells often show strong interactions through exchanging chemicals, as in quorum sensing, to achieve mutualism. Here, to achieve stable division of labor, three properties are required. First, isogenous cells differentiate into several types. Second, this aggregate of distinct cell types shows better growth than that of isolated cells, by achieving division of labor. Third, this cell aggregate is robust in the number distribution of differentiated cell types. We here address how cells acquire the ability of cell differentiation and division of labor simultaneously, which is also connected with the robustness of a cell society. For this purpose, we developed a dynamical-systems model of cells consisting of chemical components with intracellular catalytic reaction dynamics. The reactions convert external nutrients into internal components for cellular growth, and the divided cells interact via chemical diffusion. We found that cells sharing an identical catalytic network spontaneously differentiate via induction from cell-cell interactions, and then achieve division of labor, enabling a higher growth rate than that in the unicellular case. This symbiotic differentiation emerged for a class of reaction networks with limited resources and strong cell-cell interactions. Then, robustness in the cell type distribution was achieved, while instability of collective growth could emerge even among the cooperative cells when the internal reserves of products were dominant. The present mechanism is simple and general as a natural result of interacting cells with resource limitation, and is consistent with the observed behaviors and forms of several aggregates of unicellular organisms.
description: 14 pages, 6 figures