cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Higgs boson mass in a natural MSSM with nonuniversal gaugino masses at the GUT scale
Creators: name: Abe, Hiroyuki
name: Kawamura, Junichiro
name: Otsuka, Hajime
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We identify a parameter region where the mass of the lightest CP-even Higgs boson resides in $124.4-126.8$ GeV, and at the same time the degree of tuning a Higgsino-mass parameter (so-called $μ$-parameter) is relaxed above 10% in the minimal supersymmetric standard model (MSSM) with soft supersymmetry breaking terms, by solving the full set of one-loop renormalization group equations numerically. It is found that certain nonuniversal values of gaugino-mass parameters at the so-called grand unification theory (GUT) scale $\sim 10^{16}$ GeV are important ingredients for the MSSM to predict, without a severe fine-tuning, the Higgs boson mass $\sim 125$ GeV indicated by recent observations at the Large Hadron Collider. We also show a typical superparticle spectrum in this parameter region.
description: 14 pages, 5 figures, Typos corrected, references and comments added
Direct Imaging and Astrometric Detection of a Gas Giant Planet Orbiting an Accelerating Star
Creators: name: Currie, Thayne
name: Brandt, G. Mirek
name: Brandt, Timothy D.
name: Lacy, Brianna
name: Burrows, Adam
name: Guyon, Olivier
name: Tamura, Motohide
name: Liu, Ranger Y.
name: Sagynbayeva, Sabina
name: Tobin, Taylor
name: Chilcote, Jeffrey
name: Groff, Tyler
name: Marois, Christian
name: Thompson, William
name: Murphy, Simon
name: Kuzuhara, Masayuki
name: Lawson, Kellen
name: Lozi, Julien
name: Deo, Vincent
name: Vievard, Sebastien
name: Skaf, Nour
name: Uyama, Taichi
name: Jovanovic, Nemanja
name: Martinache, Frantz
name: Kasdin, N. Jeremy
name: Kudo, Tomoyuki
name: McElwain, Michael
name: Janson, Markus
name: Wisniewski, John
name: Hodapp, Klaus
name: Nishikawa, Jun
name: Helminiak, Krzysztof
name: Kwon, Jungmi
name: Hayashi, Masa
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Direct imaging of gas giant exoplanets provides key information on planetary atmospheres and the architectures of planetary systems. However, few planets have been detected in blind surveys used to achieve imaging detections. Using Gaia and Hipparcos astrometry we identified dynamical evidence for a gas giant planet around the nearby star HIP 99770 and then confirmed this planet by direct imaging with the Subaru Coronagraphic Extreme Adaptive Optics Project. HIP 99770 b orbits 17 astronomical units from its host star, with an insolation comparable to Jupiter's and a dynamical mass of 13.9--16.1 Jupiter masses. Its planet-to-star mass ratio (7--8$\times$10$^{-3}$) is comparable to that other directly-imaged planets. The planet's atmosphere resembles an older, less-cloudy analogue of the atmospheres of previously-imaged exoplanets around HR 8799.
description: Authors' version of revised paper, published in Science on April 14, 2023 (passed independent peer review/was recommended for publication in Science by external referees on July 5, 2022). First joint direct imaging + astrometric discovery of an exoplanet. 49 pages, 18 figures, 6 tables
Affine Cellularity of Khovanov-Lauda-Rouquier algebras in type A
Creators: name: Kleshchev, Alexander S.
name: Loubert, Joseph W.
name: Miemietz, Vanessa
Publisher: name: arXiv
Year: 2012
Subjects: subject: Representation Theory (math.RT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We prove that the Khovanov-Lauda-Rouquier algebras $R_\al$ of type $A_\infty$ are (graded) affine cellular in the sense of Koenig and Xi. In fact, we establish a stronger property, namely that the affine cell ideals in $R_\al$ are generated by idempotents. This in particular implies the (known) result that the global dimension of $R_\al$ is finite, and yields a theory of standard and reduced standard modules for $R_\al$.
Semiample Bertini theorems over finite fields
Creators: name: Erman, Daniel
name: Wood, Melanie Matchett
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14J70, 14C20, 14G15, 11G20, 11G25

description: We prove a semiample generalization of Poonen's Bertini Theorem over a finite field that implies the existence of smooth sections for wide new classes of divisors. The probability of smoothness is computed as a product of local probabilities taken over the fibers of the morphism determined by the relevant divisor. We give several applications including a negative answer to a question of Baker and Poonen by constructing a variety (in fact one of each dimension) which provides a counterexample to Bertini over finite fields in arbitrarily large projective spaces. As another application, we determine the probability of smoothness for curves in Hirzebruch surfaces, and the distribution of points on those smooth curves.
Zur römischen Kaiserzeit und Völkerwanderungszeit im Kreis Verden
Creators: name: Schünemann, Detlef
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 42 (1973): Nachrichten aus Niedersachsens Urgeschichte
Design of Hydrogen Passenger Aircraft – How much "Zero-Emission" is Possible?
Creators: name: Scholz, Dieter
Publisher: name: Zenodo
Year: 2020
Subjects: aviation
aircraft
propulsion
fuel
energie
design
passenger
hydrogen
LH2
cryoplane
emissions
CO2
NOx
AIC
contrails
cirrus
clouds
Airbus
concept plane
LCA
life cycle assessment
DOC
ZEROe
aerolectures2020
aerolectures
2020
Prof. Scholz @ Zenodo

description: Purpose - 1.) Presentation and evaluation of selected past and present design projects for passenger aircraft with liquid hydrogen (LH2) propulsion. LH2 aircraft are also referred to as cryoplanes. 2.) Research question: Can cryoplanes be "zero emission"? 3.) Information for everyone interested. ---
Methodology - Revisiting of HAW Hamburg past research projects. Literature review. Combination of given knowledge to new insight. ---
Findings - An A319 cabin fits almost into a LH2 cryoplane based on an A321 fuselage. Such a design limits investment into new aircraft. It needs 40% more energy, 20% more DOC and shows about 27% less environmental burden (considering emissions and energy based on a LCA) if(!) hydrogen is from electrolysis and electricity from renewable sources. However, since electricity has to be taken from the grid with given energy mix, a cryoplane is as polluting as a kerosene plane, but has the advantage that it burdens future generations less due to its predominantly short term non-CO2 emission effects. Renewable energy will by far not be sufficient to maintain flying at the level we know today (2019). It is therefore paramount to reduce flying as it happened already during the Corona pandemic. Nevertheless, the aviation industry maintains the physically implausible "zero emission" goal based on advanced technology, because otherwise the credo "aviation needs growth" will not convince politics and society and could result in restrictions. This is why industry cannot enter a technical debate about: "How much 'zero emission' is possible?". Maintaining the extreme position of "zero emission" by means of a hydrogen powered aircraft contributed further to truth decays in the aviation industry. Notwithstanding these problems, we need to find a sincere way to communicate while we abide in ethical standards like "do not lie". ---
Practical implications - Results are presented in a pragmatic way. ---
Social implications - A discussion based on facts is facilitated beyond scientific circles and can build up political pressure to initiate change in aviation into a direction which is really ecological. ---
Originality/value - A presentation spanning from in depth aircraft design to social implications is otherwise missing, but most probably needed if we want to avoid a knowledge monopoly with the aviation industry that dictates the rest of society what has to be done.
description: Hamburg Aerospace Lecture Series --- Collection of Presentations --- http://www.AeroLectures.de
Design of Hydrogen Passenger Aircraft – How much "Zero-Emission" is Possible?
Creators: name: Scholz, Dieter
Publisher: name: Zenodo
Year: 2020
Subjects: aviation
aircraft
propulsion
fuel
energie
design
passenger
hydrogen
LH2
cryoplane
emissions
CO2
NOx
AIC
contrails
cirrus
clouds
Airbus
concept plane
LCA
life cycle assessment
DOC
ZEROe
aerolectures2020
aerolectures
2020

description: Purpose - 1.) Presentation and evaluation of selected past and present design projects for passenger aircraft with liquid hydrogen (LH2) propulsion. LH2 aircraft are also referred to as cryoplanes. 2.) Research question: Can cryoplanes be "zero emission"? 3.) Information for everyone interested. ---
 Methodology - Revisiting of HAW Hamburg past research projects. Literature review. Combination of given knowledge to new insight. ---
 Findings - An A319 cabin fits almost into a LH2 cryoplane based on an A321 fuselage. Such a design limits investment into new aircraft. It needs 40% more energy, 20% more DOC and shows about 27% less environmental burden (considering emissions and energy based on a LCA) if(!) hydrogen is from electrolysis and electricity from renewable sources. However, since electricity has to be taken from the grid with given energy mix, a cryoplane is as polluting as a kerosene plane, but has the advantage that it burdens future generations less due to its predominantly short term non-CO2 emission effects. Renewable energy will by far not be sufficient to maintain flying at the level we know today (2019). It is therefore paramount to reduce flying as it happened already during the Corona pandemic. Nevertheless, the aviation industry maintains the physically implausible "zero emission" goal based on advanced technology, because otherwise the credo "aviation needs growth" will not convince politics and society and could result in restrictions. This is why industry cannot enter a technical debate about: "How much 'zero emission' is possible?". Maintaining the extreme position of "zero emission" by means of a hydrogen powered aircraft contributed further to truth decays in the aviation industry. Notwithstanding these problems, we need to find a sincere way to communicate while we abide in ethical standards like "do not lie". ---
 Practical implications - Results are presented in a pragmatic way. ---
 Social implications - A discussion based on facts is facilitated beyond scientific circles and can build up political pressure to initiate change in aviation into a direction which is really ecological. ---
 Originality/value - A presentation spanning from in depth aircraft design to social implications is otherwise missing, but most probably needed if we want to avoid a knowledge monopoly with the aviation industry that dictates the rest of society what has to be done.
description: Hamburg Aerospace Lecture Series --- Collection of Presentations --- http://www.AeroLectures.de
Bodenkundliche Untersuchungen an einem Megalithgrab unter Plaggenesch in Osnabrück-Nahne
Creators: name: Heinemann, Bruno
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 42 (1973): Nachrichten aus Niedersachsens Urgeschichte
Ein Reihengräberfeld in Gladebeck, Kr. Göttingen
Creators: name: Maier, Reinhard
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 42 (1973): Nachrichten aus Niedersachsens Urgeschichte
Characterizing Ultraviolet and Infrared Observational Properties for Galaxies. I. Influences of Dust Attenuation and Stellar Population Age
Creators: name: Mao, Ye-Wei
name: Kennicutt, Robert C.
name: Hao, Cai-Na
name: Kong, Xu
name: Zhou, Xu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The correlation between infrared-to-ultraviolet luminosity ratio and ultraviolet color, i.e. the IRX-UV relation, was regarded as a prevalent recipe for correcting extragalactic dust attenuation. Considerable dispersion in this relation discovered for normal galaxies, however, complicates its usability. In order to investigate the cause of the dispersion, in this paper, we select five nearby spiral galaxies, and perform spatially resolved studies on each of the galaxies, with a combination of ultraviolet and infrared imaging data. We measure all positions within each galaxy and divide the extracted regions into young and evolved stellar populations. By means of this approach, we attempt to discover separate effects of dust attenuation and stellar population age on the IRX-UV relation for individual galaxies. In this work, in addition to dust attenuation, stellar population age is interpreted to be another parameter in the IRX-UV function, and the diversity of star formation histories is suggested to disperse the age effects. At the same time, strong evidence shows the necessity of more parameters in the interpretation of observational data, such as variations in attenuation/extinction law. Fractional contributions of different components to the integrated luminosities of the galaxies suggest that the integrated measurements of galaxies which comprise different populations would weaken the effect of the age parameter on IRX-UV diagrams. The dependance of the IRX-UV relation on luminosity and radial distance in galaxies presents weak trends, which offers an implication of selective effects. The two-dimensional maps of the UV color and the infrared-to-ultraviolet ratio are displayed and show a disparity in the spatial distributions between the two parameters in galaxies, which offers a spatial interpretation of the scatter in the IRX-UV relation.
description: 23 pages, 27 figures, 4 tables; accepted for publication in The Astrophysical Journal; re-typesetted in the emulateapj style; minor corrections in the figure symbols and in the text
Aircraft Cabin Air – Neurotoxicity: Update and in-Depth Analysis
Creators: name: Dumalin, Daniel
Publisher: name: Zenodo
Year: 2021
Subjects: EEG
QEEG
LORETA
acetylcholine
acetylcholinesterase
vesicular
transporter
cholinergic system
neurotransmission
ACA2021
ACA2021-PRE

description: -
description: This is a presentation from the International Aircraft Cabin Air Conference 2021 (Online, 15-18 March 2021)
Lattice modified KdV hierarchy from a Lax pair expansion
Creators: name: Hay, Mike
Publisher: name: arXiv
Year: 2012
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We produce a hierarchiy of integrable equations by systematically adding terms to the Lax pair for the lattice modified KdV equation. The equations in the hierarchy are related to one aonother by recursion relations. These recursion relations are solved explicitly so that every equation in the hierarchy along with its Lax pair is known.
Eine mittelalterliche Gußform aus Klein Wiershausen, Kr. Göttingen
Creators: name: Busch, Ralf
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 42 (1973): Nachrichten aus Niedersachsens Urgeschichte
Two Sides of the Same Coin: Exposure to Lubricants from Aircraft Turbine Engines and Offshore Aeroderivative Gas Turbines
Creators: name: Erikstein, Halvor
Publisher: name: Zenodo
Year: 2021
Subjects: ACA2021
ACA2021-PRE

description: -
description: This is a presentation from the International Aircraft Cabin Air Conference 2021 (Online, 15-18 March 2021)
Who Evaluates the Evaluators? On Automatic Metrics for Assessing AI-based Offensive Code Generators
Creators: name: Liguori, Pietro
name: Improta, Cristina
name: Natella, Roberto
name: Cukic, Bojan
name: Cotroneo, Domenico
Publisher: name: arXiv
Year: 2022
Subjects: subject: Software Engineering (cs.SE)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: AI-based code generators are an emerging solution for automatically writing programs starting from descriptions in natural language, by using deep neural networks (Neural Machine Translation, NMT). In particular, code generators have been used for ethical hacking and offensive security testing by generating proof-of-concept attacks. Unfortunately, the evaluation of code generators still faces several issues. The current practice uses output similarity metrics, i.e., automatic metrics that compute the textual similarity of generated code with ground-truth references. However, it is not clear what metric to use, and which metric is most suitable for specific contexts. This work analyzes a large set of output similarity metrics on offensive code generators. We apply the metrics on two state-of-the-art NMT models using two datasets containing offensive assembly and Python code with their descriptions in the English language. We compare the estimates from the automatic metrics with human evaluation and provide practical insights into their strengths and limitations.
Considerations and Logistics For Global Ground and in-Flight Trace Contaminant Testing
Creators: name: Fox, Richard
Publisher: name: Zenodo
Year: 2021
Subjects: bleed air
contaminant
measurement
flight test
ground test
ACA2021
ACA2021-PUB

description: Aircraft ground and flight testing have constraints that must be considered before and during testing to ensure safety of the aircraft operator and test crew.
description: This is a publication from the International Aircraft Cabin Air Conference 2021 (Online, 15-18 March 2021)
Ein Tongefäß aus Völlen, Kr. Leer
Creators: name: Schütte, Sven
name: Schwarz, Hans
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 42 (1973): Nachrichten aus Niedersachsens Urgeschichte
Subdominant Modes of Scalar Superradiant Instability and Gravitational Wave Beats
Creators: name: Guo, Yin-da
name: Bao, Shou-shan
name: Zhang, Hong
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Ultralight scalars could extract energy and angular momentum from a Kerr black hole (BH) because of superradiant instability. Multiple modes labelled with $nlm$ grow while rotating around the BH, emitting continuous gravitational wave (GW). In this work, we carefully study the contribution of the subdominant modes with $n\geq 1$ in the evolution of the BH-condensate system. We find the BH still evolves along the Regge trajectory of the $n=0$ modes even with the presence of the subdominant modes. The interference of the dominant and the subdominant modes produces beats in the emitted GW, which could be used to distinguish the BH-condensate systems from other monochromatic GW sources, such as neutron stars.
description: 22 pages, 11 figures
The photonic trumpet: An efficient, broadband interface between a solid-state quantum emitter and a Gaussian beam
Creators: name: Munsch, Mathieu
name: Malik, Nitin S.
name: Gregersen, Niels
name: Bleuse, Joël
name: Dupuy, Emmanuel
name: Delga, Adrien
name: Mørk, Jesper
name: Gérard, Jean-Michel
name: Claudon, Julien
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We introduce the photonic trumpet, a dielectric structure which ensures a nearly perfect coupling between an embedded quantum light source and a Gaussian free-space beam. A photonic trumpet exploits both the broadband spontaneous emission control provided by a single-mode photonic wire and the adiabatic expansion of this mode within a conical taper. Numerical simulations highlight the outstanding performance and robustness of this concept. As a first application in the field of quantum optics, we report the realisation of an ultra-bright single-photon source. The device, a GaAs photonic trumpet containing few InAs quantum dots, demonstrates a first-lens external efficiency of $0.75 \pm 0.1$.
Aircraft Cabin Air – Neurotoxicity: Update and in-Depth Analysis
Creators: name: Dumalin, Daniel
Publisher: name: Zenodo
Year: 2021
Subjects: EEG
QEEG
LORETA
acetylcholine
acetylcholinesterase
vesicular
transporter
cholinergic system
neurotransmission
ACA2021
ACA2021-PUB

description: The major objective of this study was to explore for possible common abnormal quantitative EEG (qEEG) and Low-Resolution Electromagnetic Tomography (LORETA) measures in a self-selected population experiencing health problems related to cabin air contamination.
description: This is a publication from the International Aircraft Cabin Air Conference 2021 (Online, 15-18 March 2021)
Archäologische Funde und Befunde aus der Umgebung von Liebenau, Kr. Nienburg
Creators: name: Cosack, Erhard
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 42 (1973): Nachrichten aus Niedersachsens Urgeschichte
Correlation functions and spectral curves in models of minimal gravity
Creators: name: Kruglinskaya, O.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The correlation functions for models of minimal gravity are discussed. An algorithm is proposed for calculations of invariant ratios from formulas of residues that can be compared with the coefficients of expansion of the partition function in Liouville theory. For (2,2K-1) models transition coefficient from basis of quasiclassical hierarchy to basis Liouville theory is obtained evidently, and the hypothesis about exact form of spectral curve has been verified.
description: 9 pages
Reaction Spreading on Graphs
Creators: name: Burioni, R.
name: Chibbaro, S.
name: Vergni, D.
name: Vulpiani, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study reaction-diffusion processes on graphs through an extension of the standard reaction-diffusion equation starting from first principles. We focus on reaction spreading, i.e. on the time evolution of the reaction product, M(t). At variance with pure diffusive processes, characterized by the spectral dimension, d_s, for reaction spreading the important quantity is found to be the connectivity dimension, d_l. Numerical data, in agreement with analytical estimates based on the features of n independent random walkers on the graph, show that M(t) ~ t^{d_l}. In the case of Erdos-Renyi random graphs, the reaction-product is characterized by an exponential growth M(t) ~ e^{a t} with a proportional to ln, where is the average degree of the graph.
description: 4 pages, 3 figures
Ein Faustkeil von Wintermoor, Kr. Soltau
Creators: name: Stanelle, Udo
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 43 (1974): Nachrichten aus Niedersachsens Urgeschichte
Parity-Violating Electron Scattering and the Electric and Magnetic Strange Form Factors of the Nucleon
Creators: name: Armstrong, D. S.
name: McKeown, R. D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Measurement of the neutral weak vector form factors of the nucleon provides unique access to the strange quark content of the nucleon. These form factors can be studied using parity-violating electron scattering. A comprehensive program of experiments has been performed at three accelerator laboratories to determine the role of strange quarks in the electromagnetic form factors of the nucleon. This article reviews the remarkable technical progress associated with this program, describes the various methods used in the different experiments, and summarizes the physics results along with recent theoretical calculations.
description: Invited review for Annual Reviews of Nuclear and Particle Science, Oct 2012; as per Ann. Rev. policy, this is the originally submitted version, before refereeing and editorial work
Study on Aircraft Bleed Air Contamination by Engine Oil
Creators: name: Di Matteo, Mariano
Publisher: name: Zenodo
Year: 2021
Subjects: droplet
size
pipe
Rosin-Rammler distribution
Environmental Control System
ECS
ACA2021
ACA2021-PRE

description: -
description: This is a presentation from the International Aircraft Cabin Air Conference 2021 (Online, 15-18 March 2021)
Single-shot readout of multiple nuclear spin qubits in diamond under ambient conditions
Creators: name: Dréau, A.
name: Spinicelli, P.
name: Maze, J. R.
name: Roch, J. -F.
name: Jacques, V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We use the electronic spin of a single Nitrogen-Vacancy (NV) defect in diamond to observe the real-time evolution of neighboring single nuclear spins under ambient conditions. Using a diamond sample with a natural abundance of $^{13}$C isotopes, we first demonstrate high fidelity initialization and single-shot readout of an individual $^{13}$C nuclear spin. By including the intrinsic $^{14}$N nuclear spin of the NV defect in the quantum register, we then report the simultaneous observation of quantum jumps linked to both nuclear spin species, providing an efficient initialization of the two qubits. These results open up new avenues for diamond-based quantum information processing including active feedback in quantum error correction protocols and tests of quantum correlations with solid-state single spins at room temperature.
description: 11 pages including supplementary information. Bibliography corrected
Die Ausgrabung eines Grabhügels im Saupark bei Springe
Creators: name: Linke, Friedrich-Albert
name: Peters, Hans-Günter
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 43 (1974): Nachrichten aus Niedersachsens Urgeschichte
Using Newton's Law for Dark Energy
Creators: name: Frampton, Paul
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A model is introduced in which Newton's law is modified between matter and dark energy corpuscles (DECs). The model predicts that the DEC component is presently decelerating in its expansion at 14% of the magnitude of the matter expansion acceleration. In the future, expansion of the DEC universe will continue to decelerate.
description: 4 pages, no figures
Römische Funde bei Einbeck, Kr. Northeim
Creators: name: Plümer, Erich
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 43 (1974): Nachrichten aus Niedersachsens Urgeschichte
Nuclear uncertainties in the spin-dependent structure functions for direct dark matter detection
Creators: name: Cerdeno, David G.
name: Fornasa, Mattia
name: Huh, Ji-Haeng
name: Peiro, Miguel
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the effect that uncertainties in the nuclear spin-dependent structure functions have in the determination of the dark matter (DM) parameters in a direct detection experiment. We show that different nuclear models that describe the spin-dependent structure function of specific target nuclei can lead to variations in the reconstructed values of the DM mass and scattering cross-section. We propose a parametrization of the spin structure functions that allows us to treat these uncertainties as variations of three parameters, with a central value and deviation that depend on the specific nucleus. The method is illustrated for germanium and xenon detectors with an exposure of 300 kg yr, assuming a hypothetical detection of DM and studying a series of benchmark points for the DM properties. We find that the effect of these uncertainties can be similar in amplitude to that of astrophysical uncertainties, especially in those cases where the spin-dependent contribution to the elastic scattering cross-section is sizable.
description: 24 pages, 14 figures. References added and typos corrected
Considerations and Logistics For Global Ground and in-Flight Trace Contaminant Testing
Creators: name: Fox, Richard
Publisher: name: Zenodo
Year: 2021
Subjects: bleed air
contaminant
measurement
flight test
ground test
ACA2021
ACA2021-PRE

description: -
description: This is a presentation from the International Aircraft Cabin Air Conference 2021 (Online, 15-18 March 2021)
Bodendenkmalpflege und Öffentlichkeitsarbeit, dargestellt am Beispiel des Landkreises Uelzen
Creators: name: Schirnig, Heinz
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 43 (1974): Nachrichten aus Niedersachsens Urgeschichte
Quantum states experimentally achieving high-fidelity transmission over a spin chain
Creators: name: Wang, Zhao-Ming
name: Wu, Lian-Ao
name: Bishop, C. Allen
name: Gu, Yong-Jian
name: Byrd, Mark S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A uniformly coupled double quantum Hamiltonian for a spin chain has recently been implemented experimentally. We propose a method for the determination of initial quantum states that will provide perfect or near-perfect state transmission for an arbitrary Hamiltonian including this one. By calculating the eigenvalues and eigenvectors of a unitary operator obtained from the free evolution plus an exchange operator, we find that the double quantum Hamiltonian spin chain will support a three-spin initial encoding that will transfer along the chain with remarkably high fidelity. The fidelity is also found to decrease very slowly with increasing chain length. In addition, we are able to explain previous results showing exceptional transfer using this method.
description: comments are welcome. 5 pages, 3 figures
BigBrain-MR: a new digital phantom with anatomically-realistic magnetic resonance properties at 100-μm resolution for magnetic resonance methods development
Creators: name: Martinez, Cristina Sainz
name: Cuadra, Meritxell Bach
name: Jorge, João
Publisher: name: arXiv
Year: 2022
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: The benefits, opportunities and growing availability of ultra-high field magnetic resonance imaging (MRI) for humans have prompted an expansion in research and development efforts towards increasingly more advanced high-resolution imaging techniques. To maximize their effectiveness, these efforts need to be supported by powerful computational simulation platforms that can adequately reproduce the biophysical characteristics of MRI, with high spatial resolution. In this work, we have sought to address this need by developing a novel digital phantom with realistic anatomical detail up to 100-um resolution, including multiple MRI properties that affect image generation. This phantom, termed BigBrain-MR, was generated from the publicly available BigBrain histological dataset and lower-resolution in-vivo 7T-MRI data, using a newly-developed image processing framework that allows mapping the general properties of the latter into the fine anatomical scale of the former. Overall, the mapping framework was found to be effective and robust, yielding a diverse range of realistic "in-vivo-like" MRI contrasts and maps at 100-um resolution. BigBrain-MR was then tested in three different imaging applications (motion effects and interpolation, super-resolution imaging, and parallel imaging reconstruction) to investigate its properties, value and validity as a simulation platform. The results consistently showed that BigBrain-MR can closely approximate the behavior of real in-vivo data, more realistically and with more extensive features than a more classic option such as the Shepp-Logan phantom. This novel phantom is therefore deemed a favorable choice to support methodological development in brain MRI, and has been made freely available to the community.
description: 38 pages, 8 figures, 1 table, 6 supplementary figures
Resonant states of deformed nuclei in complex scaling method
Creators: name: Liu, Quan
name: Guo, Jian-You
name: Niu, Zhong-Ming
name: Chen, Shou-Wan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a complex scaling method for describing the resonances of deformed nuclei and present a theoretical formalism for the bound and resonant states on the same footing. With $^{31}$Ne as an illustrated example, we have demonstrated the utility and applicability of the extended method and have calculated the energies and widths of low-lying neutron resonances in $^{31}$Ne. The bound and resonant levels in the deformed potential are in full agreement with those from the multichannel scattering approach. The width of the two lowest-lying resonant states shows a novel evolution with deformation and supports an explanation of the deformed halo for $^{31}$Ne.
description: 15 pages, 7 figures. arXiv admin note: text overlap with arXiv:0712.3087, arXiv:nucl-th/0403013 by other authors
Evolutionary Dynamics in a Varying Environment: Continuous versus Discrete Noise
Creators: name: Taitelbaum, Ami
name: West, Robert
name: Mobilia, Mauro
name: Assaf, Michael
Publisher: name: arXiv
Year: 2022
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Environmental variations can significantly influence how populations compete for resources, and hence shape their evolution. Here, we study population dynamics subject to a fluctuating environment modeled by a varying carrying capacity changing continuously in time according to either binary random switches, or by being driven by a noise of continuous range. We consider a prototypical example of two competing strains, one growing slightly slower than the other, and consider also the scenario where the slow strain is a public goods producer. By systematically comparing the effect of binary- versus continuously-varying environment, we study how different noise statistics (mean, variance) influence the population size and fixation properties. We show that the slow strain fixation probability can be greatly enhanced for a continuously-varying environment compared to binary switches, even when the first two moments of the carrying capacity coincide.
description: 6 pages, 3 figures + Supplemental Material
Macroscopic Schrödinger Cat Resistant to Particle Loss and Local Decoherence
Creators: name: Mishra, Utkarsh
name: De, Aditi Sen
name: Sen, Ujjwal
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Schrödinger cat state plays a crucial role in quantum theory, and has important fundamental as well as technological implications, ranging from quantum measurement theory to quantum computers. The power of the potential implications of the cat state lies in the quantum coherence, as measured by the degree of entanglement, between its microscopic and macroscopic sectors. We show that in contrast to other cat states, it is possible to choose the states of the macroscopic sector in a way that the resulting cat state, which we term as the W-cat state, has quantum coherence that is resistant to the twin effects of environmental noise -- local decoherence on all the particles and loss of a finite fraction of its particles. The states of the macroscopic sector of the W-cat state are macroscopically distinct in terms of their violation of Bell inequality.
description: 6 pages, 4 figures, Revtex4-1
Toxicology of Contaminated Air: Are We Underestimating OP Exposure to Aircrew from Engine Bleed Air?
Creators: name: Howard, C. Vyvyan
Publisher: name: Zenodo
Year: 2021
Subjects: ACA2021
ACA2021-PRE

description: -
description: This is a presentation from the International Aircraft Cabin Air Conference 2021 (Online, 15-18 March 2021)
The effect of disorder on transverse domain wall dynamics in magnetic nanostrips
Creators: name: Van de Wiele, Ben
name: Laurson, Lasse
name: Durin, Gianfranco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the effect of disorder on the dynamics of a transverse domain wall in ferromagnetic nanostrips, driven either by magnetic fields or spin-polarized currents, by performing a large ensemble of GPU-accelerated micromagnetic simulations. Disorder is modeled by including small, randomly distributed non-magnetic voids in the system. Studying the domain wall velocity as a function of the applied field and current density reveals fundamental differences in the domain wall dynamics induced by these two modes of driving: For the field-driven case, we identify two different domain wall pinning mechanisms, operating below and above the Walker breakdown, respectively, whereas for the current-driven case pinning is absent above the Walker breakdown. Increasing the disorder strength induces a larger Walker breakdown field and current, and leads to decreased and increased domain wall velocities at the breakdown field and current, respectively. Furthermore, for adiabatic spin transfer torque, the intrinsic pinning mechanism is found to be suppressed by disorder. We explain these findings within the one-dimensional model in terms of an effective damping parameter $α^*$ increasing with the disorder strength.
description: 5 pages, 3 figures
Bibliographie zur Ur- und Frühgeschichte Niedersachsens 1973
Creators: name: Maier, Reinhard
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 43 (1974): Nachrichten aus Niedersachsens Urgeschichte
CosmoDRAGoN simulations -- I. Dynamics and observable signatures of radio jets in cosmological environments
Creators: name: Yates-Jones, Patrick M.
name: Shabala, Stanislav S.
name: Power, Chris
name: Krause, Martin G. H.
name: Hardcastle, Martin J.
name: Velastín, Elena A. N. Mohd Noh
name: Stewart, Georgia S. C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the Cosmological Double Radio Active Galactic Nuclei (CosmoDRAGoN) project: a large suite of simulated AGN jets in cosmological environments. These environments sample the intra-cluster media of galaxy clusters that form in cosmological smooth particle hydrodynamics (SPH) simulations, which we then use as inputs for grid-based hydrodynamic simulations of radio jets. Initially conical jets are injected with a range of jet powers, speeds (both relativistic and non-relativistic), and opening angles; we follow their collimation and propagation on scales of tens to hundreds of kiloparsecs, and calculate spatially-resolved synthetic radio spectra in post-processing. In this paper, we present a technical overview of the project, and key early science results from six representative simulations which produce radio sources with both core- (Fanaroff-Riley Type I) and edge-brightened (Fanaroff-Riley Type II) radio morphologies. Our simulations highlight the importance of accurate representation of both jets and environments for radio morphology, radio spectra, and feedback the jets provide to their surroundings.
description: 25 pages, 20 figures. Accepted for publication in PASA
Geschwendt, Fritz: Der vor- und frühgeschichtliche Mensch und die Heilquellen
Creators: name: Dietz, D.
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Geschwendt, Fritz: Der vor- und frühgeschichtliche Mensch und die Heilquellen. Veröffentlichungen der urgeschichtlichen Sammlungen des Landesmuseums zu Hannover, Bd. 20. Hildesheim (Verlagsbuchhandlung August Lax) 1972. 127 Seiten, 54 Abb., 4 Taf.
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 43 (1974): Nachrichten aus Niedersachsens Urgeschichte
Körner, Gerhard, und Laux, Friedrich: Vorgeschichte im Landkreis Lüneburg
Creators: name: Busch, Ralf
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Körner, Gerhard, und Laux, Friedrich: Vorgeschichte im Landkreis Lüneburg. Herausgegeben vom Museumsverein für das Fürstentum Lüneburg, Lüneburg 1971. 166 Seiten mit zahlreichen Tafeln und Abbildungen
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 43 (1974): Nachrichten aus Niedersachsens Urgeschichte
Occupational Medicine and Contaminated Air Exposures – Quarter Decade Later
Creators: name: Harrison, Robert
Publisher: name: Zenodo
Year: 2021
Subjects: airplane
medicine
contamination
symptoms
exposure
headache
NSAID
CGRP
asthma
GINA
PFT
ACA2021
ACA2021-PRE

description: -
description: This is a presentation from the International Aircraft Cabin Air Conference 2021 (Online, 15-18 March 2021)
Schirnig, Hans, und Peters, Hans-Günter: Archäologische Untersuchungen im Bereich des Elbe-Seitenkanals
Creators: name: Busch, Ralf
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Schirnig, Hans, und Peters, Hans-Günter: Archäologische Untersuchungen im Bereich des Elbe-Seitenkanals. Materialhefte zur Ur- und Frühgeschichte Niedersachsens Heft 3, Hildesheim 1970 (Verlagsbuchhandlung August Lax). 103 Seiten, 29 Abb., 17 Tafeln und eine farbige Kartenbeilage
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 43 (1974): Nachrichten aus Niedersachsens Urgeschichte
Ozone-VOC Converters: Enhance Your Comfort
Creators: name: Leung, Victor
Publisher: name: Zenodo
Year: 2021
Subjects: ozone
VOC
converter
BASF
ACA2021
ACA2021-PRE

description: BASF designed its Ozone-VOC converter to reduce jet fuel derived cabin odors, typified by aromatic VOCs, that may be introduced through the bleed air stream by engine ingested ambient air. BASF conducted a test program to survey the performance extents of its Ozone-VOC converter with a focus on those VOCs characteristic of in-flight cabin odor events, including organic acids. The Ozone-VOC converter showed significant differentiation in VOC reduction compared to a standard ozone converter while retaining the same level of ozone conversion performance. The BASF Ozone-VOC converter technology is proven by over 15 years of successful commercial flight and is a robust upgrade option, available now, to enhance the cabin experience for passengers and crew. Properly maintained, it will perform over the life of the aircraft. BASF continues evolving its aircraft converter catalyst technology portfolio to respond to emerging cabin air quality needs.
description: This is a presentation from the International Aircraft Cabin Air Conference 2021 (Online, 15-18 March 2021)
Intersection Graph of a Module
Creators: name: Yaraneri, Ergün
Publisher: name: arXiv
Year: 2012
Subjects: subject: Rings and Algebras (math.RA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C25 (Primary) 16D10 (Secondary)

description: Let $V$ be a left $R$-module where $R$ is a (not necessarily commutative) ring with unit. The intersection graph $\cG(V)$ of proper $R$-submodules of $V$ is an undirected graph without loops and multiple edges defined as follows: the vertex set is the set of all proper $R$-submodules of $V,$ and there is an edge between two distinct vertices $U$ and $W$ if and only if $U\cap W\neq 0.$ We study these graphs to relate the combinatorial properties of $\cG(V)$ to the algebraic properties of the $R$-module $V.$ We study connectedness, domination, finiteness, coloring, and planarity for $\cG (V).$ For instance, we find the domination number of $\cG (V).$ We also find the chromatic number of $\cG(V)$ in some cases. Furthermore, we study cycles in $\cG(V),$ and complete subgraphs in $\cG (V)$ determining the structure of $V$ for which $\cG(V)$ is planar.
The resonance fluorescence cascade of a laser-excited two-level atom
Creators: name: Reynaud, Serge
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The cascade of fluorescence photons by a two-level atom excited by coherent laser light is reviewed. The discussion emphasizes the random nature of resonance fluorescence and uses the distribution of delays between two successively emitted photons as the primary characterization of the process. Other characterizations such as photon counting and photon correlation are deduced.
Thermodynamic geometry of ideal quantum gases: a general framework and a geometric picture of BEC-enhanced heat engines
Creators: name: Eglinton, Joshua
name: Pyharanta, Tuomas
name: Saito, Keiji
name: Brandner, Kay
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Thermodynamic geometry provides a physically transparent framework to describe thermodynamic processes in meso- and micro-scale systems that are driven by slow variations of external control parameters. Focusing on periodic driving for thermal machines, we extend this framework to ideal quantum gases. To this end, we show that the standard approach of equilibrium physics, where a grand-canonical ensemble is used to model a canonical one by fixing the mean particle number through the chemical potential, can be extended to the slow driving regime in a thermodynamically consistent way. As a key application of our theory, we use a Lindblad-type quantum master equation to work out a dynamical model of a quantum many-body engine using a harmonically trapped Bose gas. Our results provide a geometric picture of the BEC-induced power enhancement that was previously predicted for this type of engine on the basis of an endoreversible model [New J. Phys. 24, 025001 (2022)]. Using an earlier derived universal trade-off relation between power and efficiency as a benchmark, we further show that the Bose-gas engine can deliver significantly more power at given efficiency than an equally large collection of single-body engines. Our work paves the way for a more general thermodynamic framework that makes it possible to systematically assess the impact of quantum many-body effects on the performance of thermal machines.
description: 31 pages, 6 figures
Eine früheisenzeitliche Siedlungsstelle bei Herzberg, Kr. Osterode am Harz
Creators: name: Anding, Edwin
name: Ricken, Werner
name: Reißner, Wilhelm
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: -
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 45 (1976): Nachrichten aus Niedersachsens Urgeschichte