cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stimulated vacuum emission and photon absorption in strong electromagnetic fields
Creators: name: Aleksandrov, I. A.
name: Di Piazza, A.
name: Plunien, G.
name: Shabaev, V. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: According to quantum electrodynamics (QED), a strong external field can make the vacuum state decay producing electron-positron pairs. Here we investigate emission of soft photons which accompanies a nonperturbative process of pair production. Our analysis is carried out within the Furry picture to first order in the fine-structure constant. It is shown that the presence of photons in the initial state gives rise to an additional (stimulated) channel of photon emission besides the pure vacuum one. On the other hand, the number of final (signal) photons includes also a negative contribution due to photon absorption within the pair production process. These contributions are evaluated and compared. To obtain quantitative predictions in the domain of realistic field parameters, we employ the WKB approach. We propose to use an optical probe photon beam, whose intensity changes as it traverses a spatial region where a strong electric component of a background laser field is present. It is demonstrated that relative intensity changes on the level of $1 \%$ can be experimentally observed once the intensity of the strong background field exceeds $10^{27}~\text{W/cm}^2$ within a large laser wavelength interval. This finding is expected to significantly support possible experimental investigations of nonlinear QED phenomena in the nonperturbative regime.
description: 11 pages, 6 figures
Universal relation for operator complexity
Creators: name: Fan, Zhong-Ying
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study Krylov complexity $C_K$ and operator entropy $S_K$ in operator growth. We find that for a variety of systems, including chaotic ones and integrable theories, the two quantities always enjoy a logarithmic relation $S_K\sim \log{C_K}$ at long times, where dissipative behavior emerges in unitary evolution. Otherwise, the relation does not hold any longer. Universality of the relation is deeply connected to irreversibility of operator growth.
description: Ppublication version.Minor revisions, conclusions unchanged. 22pages,4figures
QCD Predictions for Event-Shape Distributions in Hadronic Higgs Decays
Creators: name: Coloretti, Guglielmo
name: Ridder, Aude Gehrmann-De
name: Preuss, Christian T
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the six classical event-shape observables in hadronic Higgs decays at next-to-leading order in QCD. To this end, we consider the decay of on-shell Higgs bosons to three partons, taking into account both the Yukawa-induced decay to $\mathrm{b}$-quark pairs and the loop-induced decay to two gluons via an effective Higgs-gluon coupling. The results are discussed with a particular focus on the discriminative power of event shapes regarding these two classes of processes.
description: 30 pages, 7 figures
Sonnenfleckenzeichnung Nr. 15473.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 01.08.1943, erstellt von Max Waldmeier
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1943

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Towards machine learning for microscopic mechanisms: a formula search for crystal structure stability based on atomic properties
Creators: name: Gajera, Udaykumar
name: Storchi, Loriano
name: Amoroso, Danila
name: Delodovici, Francesco
name: Picozzi, Silvia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Machine Learning (ML) techniques are revolutionizing the way to perform efficient materials modeling. Nevertheless, not all the ML approaches allow for the understanding of microscopic mechanisms at play in different phenomena. To address the latter aspect, we propose a combinatorial machine-learning approach to obtain physical formulas based on simple and easily-accessible ingredients, such as atomic properties. The latter are used to build materials features that are finally employed, through Linear Regression, to predict the energetic stability of semiconducting binary compounds with respect to zincblende and rocksalt crystal structures. The adopted models are trained using dataset built from first-principles calculations. Our results show that already one-dimensional (1D) formulas well describe the energetics; a simple grid-search optimization of the automatically-obtained 1D-formulas enhances the prediction performances at a very small computational cost. In addition, our approach allows to highlight the role of the different atomic properties involved in the formulas. The computed formulas clearly indicate that "spatial" atomic properties (i.e. radii indicating maximum probability densities for $s,p,d$ electronic shells) drive the stabilization of one crystal structure with respect to the other, suggesting the major relevance of the radius associated to the $p$-shell of the cation species.
description: 11 pages and 5 figures with extra supplementary material
Sonnenfleckenzeichnung Nr. 15200.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 14.09.1942, erstellt von William Otto Brunner
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Sonnenfleckenzeichnung Nr. 15240.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 02.11.1942, erstellt von William Otto Brunner
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Sonnenfleckenzeichnung Nr. 15155.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 29.07.1942, erstellt von William Brunner, Assistent.
Die Nummer 15155, bereits benutzt für die Zeichnung vom 08.06.1942, wurde für den 29.07.1942 ein zweites Mal vergeben. Die duplizierende Nummer entstand aufgrund mangelhafter Nummernvergabe bereits bei der vorhergehenden Zeichnung
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Pulse-shape discrimination in water-based scintillators
Creators: name: Ford, Michael J.
name: Zaitseva, Natalia P.
name: Carman, M. Leslie
name: Dazeley, Steven A.
name: Bernstein, Adam
name: Glenn, Andrew
name: Akindele, Oluwatomi A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: This work describes a class of liquid scintillators that contain mostly water (>50 wt. % of the entire composition) and can discriminate between interactions induced by neutrons and gamma rays. By balancing the interface interactions between the components of the formulation, these scintillators form emulsions that can be thermodynamically stable. This approach, which considers a quantity known as the hydrophilic-lipophilic difference, requires consideration of the salinity and temperature as well as characterization of the surfactants and oil phase. Emulsions comprised of water and various oils were characterized first. Then, the effect of scintillating dyes in the oil phase was considered, followed by the construction of partial phase diagrams of the emulsions. For transparent oil-in-water emulsions with a single phase, the scintillation light yield and properties of pulse-shape discrimination were measured. The best performing scintillators contained 33 wt. % of a scintillating oil phase and exhibited a light yield that was as high as 18% of the light yield of a commercially available liquid scintillator that does not contain water (EJ-309). These water-based liquid scintillators exhibited a figure of merit of neutron/gamma ray discrimination as high as 1.79 at about 1500 keVee.
1-jettiness with jet axis at $O(α_s)$ in jeep inelastic scattering
Creators: name: Chu, Zexuan
name: Wang, Yunlu
name: Ee, June-Haak
name: Chen, Jinhui
name: Kang, Daekyoung
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present $O(α_s)$ analytic predictions for event shape 1-jettiness $τ_1$ distribution aiming measurements in deep inelastic scattering process at future Electron Ion Colliders. The result depends on conventional variables $x$ and $Q$ as well as on $τ_1$ and is relatively compact and easy to implement for numerical calculation. Three different choices of axis, with respect to which $τ_1$ is measured are considered in the Breit frame. The first is the one optimally adjusted to minimize $τ_1$ and the second and third are taken from anti-$k_T$ and Centauro jet algorithms defined with a jet radius parameter $R$, respectively. We find that the first and second give the same result at this order and are independent of $R$, while the third depends on the radius. This fixed-order result provides a nonsingular contribution to be combined with a singular log-resummed contribution to give the full spectrum in $τ_1$ space and also shows how fixed-order and resummation regions change as a function of $x$ and $Q$.
description: 32 pages, 5 figures, comments are welcome. v2: major revision including NLP expressions in (3.13) and (3.14) added, figure 5 revised, more discussions added
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 27.11.1942, erstellt von Enrique Gullon an der Sternwarte Madrid
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Zeichnung mit Tinte, erstellt auf einem eigenen Vordruck in Madrid. Instrument: Grubb Refraktor Teleskop (Öffnung: 20 cm, f = 3 m, projiziertes Sonnenbild D = 6,5 cm).
Instrumentennachweis gemäss Aparicio (u.a.): Sunspot, in: Solar Physics, Vol. 289, S. 4335-49, DOI: 10.1007/s11207-014-0567-x
Ionization potentials and electron affinities of Rg, Cn, Nh, and Fl superheavy elements
Creators: name: Kaygorodov, M. Y.
name: Usov, D. P.
name: Eliav, E.
name: Kozhedub, Y. S.
name: Malyshev, A. V.
name: Oleynichenko, A. V.
name: Shabaev, V. M.
name: Skripnikov, L. V.
name: Titov, A. V.
name: Tupitsyn, I. I.
name: Zaitsevskii, A. V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The successive ionization potentials (IPs) and electron affinities (EAs) for superheavy elements with $111 \leq Z \leq 114$, namely, Rg, Cn, Nh, and Fl are reexamined using the relativistic Fock-space coupled-cluster method with nonperturbative single (S), double (D), and triple (T) cluster amplitudes (FS-CCSDT). For the most of considered quantities, the triple-amplitude contributions turn out to be important. The Breit and frequency-dependent Breit corrections are evaluated by means of the configuration-interaction method. The quantum-electrodynamics corrections to the IPs and EAs are taken into account within the model-QED-operator approach. The obtained results are within 0.10 eV uncertainty.
description: 10 pages, 6 tables
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 22.10.1942, erstellt von Enrique Gullon an der Sternwarte Madrid
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Zeichnung mit Tinte, erstellt auf einem eigenen Vordruck in Madrid. Instrument: Grubb Refraktor Teleskop (Öffnung: 20 cm, f = 3 m, projiziertes Sonnenbild D = 6,5 cm).
Instrumentennachweis gemäss Aparicio (u.a.): Sunspot, in: Solar Physics, Vol. 289, S. 4335-49, DOI: 10.1007/s11207-014-0567-x
Endothelin receptors in renal interstitial cells do not contribute to the development of fibrosis during experimental kidney disease
Creators: name: Neder, Thomas H.
name: Schrankl, Julia
name: Fuchs, Michaela A. A.
name: Broeker, Katharina A. E.
name: Wagner, Charlotte
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: Endothelin-1, Endothelin receptors, Kidney fibrosis, Unilateral ureter occlusion, Adenine-induced nephropathy
subject: 570 Biowissenschaften, Biologie

description: Renal interstitial fibrosis is characterized by the development of myofibroblasts, originating from resident renal and immigrating cells. Myofibroblast formation and extracellular matrix production during kidney damage are triggered by various factors. Among these, endothelins have been discussed as potential modulators of renal fibrosis. Utilizing mouse models of adenine nephropathy (AN) and unilateral ureter occlusion (UUO), this study aimed to investigate the contribution of endothelin signaling in stromal mesenchymal resident renal interstitial cells. We found in controls that adenine feeding and UUO caused marked upregulations of endothelin-1 (ET-1) gene expression in endothelial and in tubular cells and a strong upregulation of ETA-receptor (ETA-R) gene expression in interstitial and mesangial cells, while the gene expression of ETB-receptor (ETB-R) did not change. Conditional deletion of ETA-R and ETB-R gene expression in the FoxD1 stromal cell compartment which includes interstitial cells significantly reduced renal ETA-R gene expression and moderately lowered renal ETB-R gene expression. ET receptor (ET-R) deletion exerted no apparent effects on kidney development nor on kidney function. Adenine feeding and UUO led to similar increases in profibrotic and proinflammatory gene expression in control as well as in ETAflflETBflfl FoxD1Cre+ mice (ET-Ko). In summary, our findings suggest that adenine feeding and UUO activate endothelin signaling in interstitial cells which is due to upregulated ETA-R expression and enhanced renal ET-1 production Our data also suggest that the activation of endothelin signaling in interstitial cells has less impact for the development of experimentally induced fibrosis.
Integrable branes in generalized $λ$-deformations
Creators: name: Pappas, Georgios P. D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We search for integrable boundary conditions and their geometric interpretation as $D$-branes, in models constructed as generalized $λ$-deformations of products of group- and coset-spaces. Using the sigma-model approach, we find that all the conformal brane geometries known in the literature for a product of WZW models solve the corresponding boundary conditions, thus persisting as integrable branes along the RG flows of our sigma-models. They consist of the well known $G$-conjugacy classes, twisted $G$-conjugacy classes by a permutation automorphism (permutation branes) and generalized permutation branes. Subsequently, we study the properties of the aforementioned brane geometries, especially of those embedded in the backgrounds interpolating between the UV and IR fixed points.
description: 52 pages
Sonnenfleckenzeichnung Nr. 15216.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 03.10.1942, erstellt von William Otto Brunner
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Inclusive nonresonant multilepton probes of new phenomena at $\sqrt{s} =$ 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: An inclusive search for nonresonant signatures of beyond the standard model (SM) phenomena in events with three or more charged leptons, including hadronically decaying $τ$ leptons, is presented. The analysis is based on a data sample corresponding to an integrated luminosity of 138 fb$^{-1}$ of proton-proton collisions at $\sqrt{s} =$ 13 TeV, collected by the CMS experiment at the LHC in 2016-2018. Events are categorized based on the lepton and b-tagged jet multiplicities and various kinematic variables. Three scenarios of physics beyond the SM are probed, and signal-specific boosted decision trees are used for enhancing sensitivity. No significant deviations from the background expectations are observed. Lower limits are set at 95% confidence level on the mass of type-III seesaw heavy fermions in the range 845-1065 GeV for various decay branching fraction combinations to SM leptons. Doublet and singlet vector-like $τ$ lepton extensions of the SM are excluded for masses below 1045 GeV and in the mass range 125-150 GeV, respectively. Scalar leptoquarks decaying exclusively to a top quark and a lepton are excluded below 1.12-1.42 TeV, depending on the lepton flavor. For the type-III seesaw as well as the vector-like doublet model, these constraints are the most stringent to date. For the vector-like singlet model, these are the first constraints from the LHC experiments. Detailed results are also presented to facilitate alternative theoretical interpretations.
description: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables, including additional supplementary figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-21-002 (CMS Public Pages)
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 27.12.1942, erstellt von Enrique Gullon an der Sternwarte Madrid
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Zeichnung mit Tinte, erstellt auf einem eigenen Vordruck in Madrid. Instrument: Grubb Refraktor Teleskop (Öffnung: 20 cm, f = 3 m, projiziertes Sonnenbild D = 6,5 cm).
Instrumentennachweis gemäss Aparicio (u.a.): Sunspot, in: Solar Physics, Vol. 289, S. 4335-49, DOI: 10.1007/s11207-014-0567-x
The ultra-diffuse galaxy AGC 114905 needs dark matter
Creators: name: Sellwood, J. A.
name: Sanders, R. H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent 21 cm line observations of the ultra-diffuse galaxy AGC~114905 indicate a rotating disc largely supported against gravity by orbital motion, as usual. Remarkably, this study has revealed that the form and amplitude of the HI rotation curve is completely accounted for by the observed distribution of baryonic matter, stars and neutral gas, implying that no dark halo is required. It is surprising to find a DM-free galaxy for a number of reasons, one being that a bare Newtonian disk having low velocity dispersion would be expected to be unstable to both axi- and non-axisymmetric perturbations that would change the structure of the disc on a dynamical timescale, as has been known for decades. We present $N$-body simulations of the DM-free model, and one having a low-density DM halo, that confirm this expectation: the disc is chronically unstable to just such instabilities. Since it is unlikely that a galaxy that is observed to have a near-regular velocity pattern would be unstable, our finding calls into question the suggestion that the galaxy may lack, or have little, dark matter. We also show that if the inclination of this near face-on system has been substantially overestimated, the consequent increased amplitude of the rotation curve would accommodate a halo massive enough for the galaxy to be stable.
description: 10 pages, to appear in MNRAS, minor revisions requested by the referee
Small mode volume topological photonic states in one-dimensional lattices with dipole--quadrupole interactions
Creators: name: Wu, Raymond P. H.
name: Ong, H. C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the topological photonic states in one-dimensional (1-D) lattices analogue to the Su-Schrieffer-Heeger (SSH) model beyond the dipole approximation. The electromagnetic resonances of the lattices supported by near-field interactions between the plasmonic nanoparticles are studied analytically with coupled dipole--quadrupole method. The topological phase transition in the bipartite lattices is determined by the change of Zak phase. Our results reveal the contribution of quadrupole moments to the near-field interactions and the band topology. It is found that the topological edge states in non-trivial lattices have both dipolar and quadrupolar nature. The quadrupolar edge states are not only orthogonal to the dipolar edge states, but also spatially localized at different sublattices. Furthermore, the quadrupolar topological edge states, which coexist at the same energy with the quadrupolar flat band have shorter localization length and hence smaller mode volume than the conventional dipolar edge states. The findings deepen our understanding in topological systems that involve higher-order multipoles, or in analogy to the wave functions in quantum systems with higher-orbital angular momentum, and may be useful in designing topological systems for confining light robustly and enhancing light-matter interactions.
description: 18 pages, 17 figures; submitted to Physical Review Research (Regular Article); revised version
Extended data for the satuRn publication
Creators: name: Gilis, Jeroen
name: Vitting-Seerup, Kristoffer
name: Van Den Berge, Koen
name: Clement, Lieven
Publisher: name: Zenodo
Year: 2022
Subjects: Extended data
Supplementary figures
Differential transcript usage
satuRn

description: On this Zenodo upload, we share the Extended data or supplementary materials to our publication of the satuRn R package. This upload includes three files: Supplementary_Figures.pdf: The supplementary figures to the satuRn publication (F1000 journal, version 2), including figure captions. DTU_Methods_Detail.pdf: A .pdf text file that describes the different DTU tools that were included in our benchmarks in greater detail as compared to the description in our main publication. For even higher detail, we refer to the respective original publications. GSEA_MSigDB.xlsx: The output of the Gene Set Enrichment Analyses (GSEA) for the case study of our publication as generated by the online MSigDB platform. With respect to version 1.0.0 of this Zenodo upload, we made some minor changes for to ensure that the notation in these Extended data documents to be consistent with that of our main publication.
On the singularity structure of a discrete modified-Korteweg-deVries equation
Creators: name: Grammaticos, Basil
name: Tamizhmani, Thamizharasi
name: Willox, Ralph
Publisher: name: arXiv
Year: 2022
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the singularities of a modified lattice Korteweg-deVries (KdV) equation and show that it admits three families of singularities, with analogous properties to those found in the lattice KdV equation. The first family consists of localised singularities which can occupy an arbitrarily large domain but which are, nevertheless, always confined. The second family consists of one or more lines extending all the way from the south-west to the north-east on the plane, involving a single finite value that depends on the parameter that appears in the equation. We argue that the infinite extent of this singularity is not incompatible with the confinement property or with the integrability of the equation. The third family consists of horizontal strips in which the product of values on vertically adjacent lattice sites is equal to 1. In the case of the lattice KdV equation this type of singularity was dubbed `taishi'. The taishi for the modified lattice KdV equation can interact with singularities of the other two families, giving rise to very rich {and quite intricate} singularity structures. Nonetheless, these interactions can be described in a compact way through the formulation of a symbolic representation of the dynamics that is similar to, but in a sense, simpler than that for the KdV case. We give an interpretation of this symbolic representation in terms of a Box&Ball system related to the ultradiscrete mKdV equation. These results show that taishi-type singularities are not limited to the lattice KdV equation, but might very well be a general feature of integrable lattice equations with deep connections to other facets of their integrability.
description: 16 pages, 17 figures
Sonnenfleckenzeichnung Nr. 15517.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 14.09.1943, erstellt von William Otto Brunner
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1943

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Key graph properties affecting transport efficiency of flip-flop Grover percolated quantum walks
Creators: name: Mareš, Jan
name: Novotný, Jaroslav
name: Štefaňák, Martin
name: Jex, Igor
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum walks exhibit properties without classical analogues. One of those is the phenomenon of asymptotic trapping -- there can be non-zero probability of the quantum walker being localised in a finite part of the underlying graph indefinitely even though locally all directions of movement are assigned non-zero amplitudes at each step. We study quantum walks with the flip-flop shift operator and the Grover coin, where this effect has been identified previously. For the version of the walk further modified by a random dynamical disruption of the graph (percolated quantum walks) we provide a recipe for the construction of a complete basis of the subspace of trapped states allowing to determine the asymptotic probability of trapping for arbitrary finite connected simple graphs, thus significantly generalizing the previously known result restricted to planar 3-regular graphs. We show how the position of the source and sink together with the graph geometry and its modifications affect the excitation transport. This gives us a deep insight into processes where elongation or addition of dead-end subgraphs may surprisingly result in enhanced transport and we design graphs exhibiting this pronounced behavior. In some cases this even provides closed-form formulas for the asymptotic transport probability in dependence on some structure parameters of the graphs.
description: 15 pages, 12 figures
Meteorologische Beobachtungen von Dr. Abel Socin, 1783-96
Creators: name: Socin, Abel
name: Huber, Daniel
Publisher: name: [s.n.]
Year: 1783

description: Vollständiger Titel auf S. 1: "Meteorologische Beobachtungen angestellt zu Basel im Offenburger Hof, 1. Stock von Dr. Abel Socin. Nach den auf einzelnen Karten niedergeschriebenen Original-Beobachtungen copirt von Prof. Dan. Huber. Die Original Beobachtungen hatte H. [?] Prof. Huber von den Socin'schen Erben erhalten, und unter seinen Handschriften ebenfalls hinterlassen". Darunter zeitgenössischer Bleistifteintrag von anderer Hand: "NB Die angegebene Zeit ist alte Baslerzeit, also immer eine Stunde früher als die gewöhnl. Zeit". Die Aufzeichnungen reichen von Juni 1783 bis Dezember 1796.
description: Copie von Prof. Dan. Huber
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Verzeichnung=Description=Inventaire März 2020 Kurzkatalogisat für Digitalisierung
description: Verzeichnung=Description=Inventaire August 2020 HAN-Katalogisierungsregeln Minimalaufnahme nach Autopsie
description: Verzeichnung=Description=Inventaire Mai 2021 HAN-Katalogisierungsregeln Normalaufnahme Helena Müller
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Tracing Pb from Nolans Bore thorianite through Alice Springs thorite to radiogenic galena: EPMA and LA-ICP-MS study of time and space
Creators: name: Tatnell, Lucas J.
name: Anenburg, Michael
Publisher: name: Geological Society of London
Year: 2022
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Geochemical data for Nolans Bore.
Magneto-optical Spectroscopy with RAMBO: A Table-Top 30 T Magnet
Creators: name: Tay, Fuyang
name: Baydin, Andrey
name: Katsutani, Fumiya
name: Kono, Junichiro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Optically probing materials in high magnetic fields can provide enlightening insight into field-modified electronic states and phases, while optically driving materials in high magnetic fields can induce novel nonequilibrium many-body dynamics of spin and charge carriers. While there are high-field magnets compatible with standard optical spectroscopy methods, they are generally bulky and have limited optical access, which prohibit performing state-of-the-art ultrafast and/or nonlinear optical experiments. The Rice Advanced Magnet with Broadband Optics (RAMBO), a unique 30-T pulsed mini-coil magnet system with direct optical access, has enabled previously challenging experiments using femtosecond optical pulses, including time-domain terahertz spectroscopy, in cutting-edge materials placed in strong magnetic fields. Here, we review recent experimental advances made possible by the first-generation RAMBO setup. After summarizing technological aspects of combining optical spectroscopic techniques with the mini-coil magnet, we describe results of magneto-optical studies of a wide variety of materials, providing new insight into the states and dynamics of four types of quasiparticles in solids - excitons, plasmons, magnons, and phonons - in high magnetic fields.
description: 11 pages, 14 figures. arXiv admin note: text overlap with arXiv:1907.00137
Sonnenfleckenzeichnung Nr. 15158.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 01.08.1942,erstellt von William Brunner, Assistent.
Die Nummer 15158, bereits benutzt für die Zeichnung vom 11.06.1942, wurde für den 01.08.1942 ein zweites Mal vergeben. Die duplizierende Nummer entstand aufgrund mangelhafter Nummernvergabe bereits bei der vorhergehenden Zeichnung
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Geodesic Quantum Walks
Creators: name: Di Molfetta, Giuseppe
name: Deng, Victor
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Geometry (cs.CG)
subject: Computation and Language (cs.CL)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We propose a new family of discrete-spacetime quantum walks capable to propagate on any arbitrary triangulations. Moreover we also extend and generalize the duality principle introduced by one of the authors, linking continuous local deformations of a given triangulation and the inhomogeneity of the local unitaries that guide the quantum walker. We proved that in the formal continuous limit, in both space and time, this new family of quantum walks converges to the (1+2)D massless Dirac equation on curved manifolds. We believe that this result has relevance in both modelling/simulating quantum transport on discrete curved structures, such as fullerene molecules or dynamical causal triangulation, and in addressing fast and efficient optimization problems in the context of the curved space optimization methods.
description: 3 figures
Sonnenfleckenzeichnung Nr. 15213.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 30.09.1942, erstellt von William Otto Brunner
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Chandra Follow-up Observations of Swift-BAT-selected AGNs II
Creators: name: Silver, Ross
name: Torres-Alba, Nuria
name: Zhao, Xiurui
name: Marchesi, Stefano
name: Pizzetti, Andrealuna
name: Ajello, Marco
name: Cusumano, Giancarlo
name: Parola, Valentina
name: Segreto, Alberto
name: Comastri, Andrea
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the combined Chandra and Swift-BAT spectral analysis of nine low-redshift (z <= 0.10), candidate heavily obscured active galactic nuclei (AGN) selected from the Swift-BAT 150-month catalog. We located soft (1-10 keV) X-ray counterparts to these BAT sources and joint fit their spectra with physically motivated models.The spectral analysis in the 1-150 keV energy band determined that all sources are obscured, with a line-of-sight column density NH >= 10^22 cm^-2 at a 90% confidence level. Four of these sources show significant obscuration with NH >= 10^23 cm^-2 and two additional sources are candidate Compton-thick Active Galactic Nuclei (CT-AGNs) with NH >= 10^24 cm^-2.These two sources, 2MASX J02051994-0233055 and IRAS 11058-1131, are the latest addition to the previous 3 CT-AGN candidates found using our strategy for soft X-ray follow-up of BAT sources. In here we present the results of our methodology so far, and analyze the effectiveness of applying different selection criteria to discover CT-AGN in the local Universe. Our selection criteria has a ~20% success rate of discovering heavily obscured AGN whose CT nature is confirmed by follow-up NuSTAR observations. This is much higher than the ~5% found in blind surveys.
Sonnenfleckenzeichnung Nr. 15196.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 10.09.1942, erstellt von William Otto Brunner
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Magnetic field induced corrections to the NJL model coupling constant from vacuum polarization
Creators: name: Moreira, Thiago H.
name: Braghin, Fabio L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Magnetic field dependent corrections for the coupling constant of the Nambu-Jona-Lasinio model are calculated by considering the one-loop background field method. These coupling constants turn out to break chiral and flavor symmetries and they lead to a slight improvement of the numerical values of the up and down quark condensates when compared to results from lattice QCD. The corresponding magnetic field dependencies of the neutral pion and kaon masses are also presented and compared with available lattice QCD calculations. The resulting magnetic field correction to the $η-η'$ mixing angle is also estimated.
description: 22 pages, 11 figures, revised manuscript, accepted for publication
Sonnenfleckenzeichnung Nr. 15261.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 08.12.1942, erstellt von William Otto Brunner
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
title: A bet on electrification. Challenges, insights and opportunities in the end of life management of li-ion electric vehicle batteries
Creators: name: Timmer, Felix
Publisher: name: TU Wien
Year: 2022
Subjects: subject: Li-ion Batteries
subject: End of life management
subject: Electrification
subject: Automotive

description: Electrification is set to change mobility as we know it. Governments have pursued legislative changes to enhance the prospect of climate neutrality. This change, is primarily facilitated through the employment of electric vehicles, which run on li-ion batteries. These circumstances will result in unprecedented volumes of retired li-ion batteries. Consequently, the recyclingindustry will have to adapt.This investigation initially focuses on providing a macro outlook on how li-ion batteries work,if they have a future and what this incremental change in mobility means in regard to total CO2 emissions. The investigation especially focuses on the end of life management of li-ionbatteries. A field worth investigating since, on average li-ion batteries have a lifetime expectancy of 7 – 10 years, before losing some of their capacity output, deeming them redundant for electric vehicles as the already limited kilometer reach will be reduced.Furthermore, this investigation will explore the notion of repurposing li-ion batteries and thechallenges and obstacles revolving around establishing a second life for the battery. Economic aspects of both recycling and repurposing will be explored to shed light on the viability of suchprocesses. Specifically the investigation will analyze direct recycling methods and hydrometallurgical recycling methods.This investigation relies on proving or disproving three hypotheses, with the aim of providing a sound understanding of end of life management in regard to li-ion batteries. Ultimatelyaiming at formulating the ground work in regard to the crucial and important aspect of establishing a circular economy within the EV battery market, through optimization in end of life management.
Sonnenfleckenzeichnung Nr. 15215.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 02.10.1942, erstellt von William Otto Brunner
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Extraction of the interaction parameters for $α-$RuCl$_3$ from neutron data using machine learning
Creators: name: Samarakoon, Anjana M.
name: Laurell, Pontus
name: Balz, Christian
name: Banerjee, Arnab
name: Lampen-Kelley, Paula
name: Mandrus, David
name: Nagler, Stephen E.
name: Okamoto, Satoshi
name: Tennant, D. Alan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Single crystal inelastic neutron scattering data contain rich information about the structure and dynamics of a material. Yet the challenge of matching sophisticated theoretical models with large data volumes is compounded by computational complexity and the ill-posed nature of the inverse scattering problem. Here we utilize a novel machine-learning-assisted framework featuring multiple neural network architectures to address this via high-dimensional modeling and numerical methods. A comprehensive data set of diffraction and inelastic neutron scattering measured on the Kitaev material $α-$RuCl$_3$ is processed to extract its Hamiltonian. Semiclassical Landau-Lifshitz dynamics and Monte-Carlo simulations were employed to explore the parameter space of an extended Kitaev-Heisenberg Hamiltonian. A machine-learning-assisted iterative algorithm was developed to map the uncertainty manifold to match experimental data; a non-linear autoencoder used to undertake information compression; and Radial Basis networks utilized as fast surrogates for diffraction and dynamics simulations to predict potential spin Hamiltonians with uncertainty. Exact diagonalization calculations were employed to assess the impact of quantum fluctuations on the selected parameters around the best prediction.
description: 22 pages, 18 figures
Sonnenfleckenzeichnung Nr. 15230.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 20.10.1942, erstellt von William Otto Brunner
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Sonnenfleckenzeichnung Nr. 15234.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 27.10.1942, erstellt von William Otto Brunner
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind Angaben zu Protuberanzen vermerkt
Statistics of local level spacings in single- and many-body quantum chaos
Creators: name: Tian, Peng
name: Riser, Roman
name: Kanzieper, Eugene
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Physics (math-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a notion of local level spacings and study their statistics within a random-matrix-theory approach. In the limit of infinite-dimensional random matrices, we determine universal sequences of mean local spacings and of their ratios which uniquely identify the global symmetries of a quantum system and its internal -- chaotic or regular -- dynamics. These findings, which offer a new framework to monitor single- and many-body quantum systems, are corroborated by numerical experiments performed for zeros of the Riemann zeta function, spectra of irrational rectangular billiards and many-body spectra of the Sachdev-Ye-Kitaev Hamiltonians.
description: Published version. Main text: 7 pages, 1 figure and 3 tables. Supplemental material: 5 pages and 4 figures