cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
High-fidelity readout of trapped-ion qubits
Creators: name: Myerson, A.
name: Szwer, D.
name: Webster, S.
name: Allcock, D.
name: Curtis, M.
name: Imreh, G.
name: Sherman, J.
name: Stacey, D.
name: Steane, A.
name: Lucas, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate single-shot qubit readout with fidelity sufficient for fault-tolerant quantum computation, for two types of qubit stored in single trapped calcium ions. For an optical qubit stored in the (4S_1/2, 3D_5/2) levels of 40Ca+ we achieve 99.991(1)% average readout fidelity in one million trials, using time-resolved photon counting. An adaptive measurement technique allows 99.99% fidelity to be reached in 145us average detection time. For a hyperfine qubit stored in the long-lived 4S_1/2 (F=3, F=4) sub-levels of 43Ca+ we propose and implement a simple and robust optical pumping scheme to transfer the hyperfine qubit to the optical qubit, capable of a theoretical fidelity 99.95% in 10us. Experimentally we achieve 99.77(3)% net readout fidelity, inferring at least 99.87(4)% fidelity for the transfer operation.
description: 4 pages, 3 figures; improved readout fidelity (numerical results changed)
title: Länderrisiko: Die ökonomischen Konsequenzen einer Herabstufung durch die Rating-Agenturen
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Käfer, Benjamin
name: Michaelis, Jochen
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: Economics
Wirtschaft

description: Bei der Kritik an den Rating-Agenturen wird häufig missachtet, dass ihre Macht weitgehend politikgemacht ist. Es sind der Staat und die EZB, die über Gesetze und Regulierungen den Ratings eine Multiplikatorwirkung zuschreiben. Dieser Beitrag skizziert anhand der Länder-ratings die einschlägigen Wirkungskanäle.
Mass-imaging of microscopic and other slides
Creators: name: Allan Louise, E.
name: Price Benjamin, W.
name: Shchedrina Olha
name: Dupont Steen
name: Livermore Laurence
name: Smith Vince, S.
Publisher: name: Zenodo
Year: 2019

description: Microscope slides form part of natural history collections in herbarium, museums and other collecting holding institutes. They are unusual compared to other preservation types as they are rarely curated as separate collections but stored as supplementary collections alongside a range of “classical” collection categories including entomological (both as whole slide mounts and preparations of parts like genitalia), botany, zoology, palaeontology and mineralogy. The preservation methods, labelling practices, dimensions and storage are very variable. It is probably due to these properties that there has been limited mass-imaging methodologies published and considered for slides as a discrete collection.
Massive partition functions and complex eigenvalue correlations in Matrix Models with symplectic symmetry
Creators: name: Akemann, G.
name: Basile, F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute all massive partition functions or characteristic polynomials and their complex eigenvalue correlation functions for non-Hermitean extensions of the symplectic and chiral symplectic ensemble of random matrices. Our results are valid for general weight functions without degeneracies of the mass parameters. The expressions we derive are given in terms of the Pfaffian of skew orthogonal polynomials in the complex plane and their kernel. They are much simpler than the corresponding expressions for symplectic matrix models with real eigenvalues, and we explicitly show how to recover these in the Hermitean limit. This explains the appearance of three different kernels as quaternion matrix elements there in terms of derivatives of a single kernel here. We compare to the Hermitean limit of complex matrix models with unitary symmetry leading to some determinantal identities.
description: 24 pages, v2 published version: discussion + refs added, typos corected
title: Optimal Monetary Policy in a Currency Union: The Role of the Cost Channel
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Michaelis, Jochen
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: cost channel
monetary union; open economy macroeconomics
optimal monetary policy
Economics
Wirtschaft

description: In this paper we introduce the cost channel of monetary policy (e.g.,
Ravenna and Walsh, 2006) into an otherwise standard New Keynesian
model of a two-country monetary union, which is being hit by aggregate,
asymmetric and idiosyncratic shocks. The single central bank implements
the optimal discretionary monetary policy by setting the union interest
rate.The cost channel makes monetary policy less effective in combatting
inflation, but it is shown that the optimal response to the decline in e¤ec-
tiveness is a stronger use of the instrument. Moreover, we show how the
sign of the spillover e¤ects of idiosyncratic shocks depends on the strength
of the cost channel. If the cost channel exceeds a well-defined threshold,
then the interest rate turns into a supply-side instrument.
At the horizon of a supersymmetric AdS_5 black hole: Isometries and half-BPS giants
Creators: name: Sinha, Aninda
name: Sonner, Julian
name: Suryanarayana, Nemani V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The near-horizon geometry of an asymptotically AdS_5 supersymmetric black hole discovered by Gutowski and Reall is analysed. After lifting the solution to 10 dimensions, we explicitly solve the Killing spinor equations in both Poincare and global coordinates. It is found that exactly four supersymmetries are preserved which is twice the number for the full black hole. The full set of isometries is constructed and the isometry supergroup is shown to be SU(1,1|1) X SU(2) X U(3). We further study half-BPS configurations of D3-branes in the near-horizon geometry in Poincare and global coordinates. Both giant graviton probes and dual giant graviton probes are found.
description: 26 pages. v2:Typos corrected, minor changes
title: Marktbasierte Klimapolitik in den USA: „Wind of Change“ oder „Blown by the Wind“?
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Rudolph, Sven
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: Emissionshandel
RGGI
Economics
Wirtschaft
USA
WCI
ACESA
Nachhaltigkeit
Klimapolitik

description: Trotz der klimapolitischen Zurückhaltung der USA auf der internationalen Ebene existieren innerhalb der USA Initiativen für klimapolitische Emissionshandelssysteme. Umgesetzt ist dabei bisher allein ein System im Nordosten, jedoch steht ein weiteres System im Westen kurz vor der Einführung und die Präsidentschaftswahlen im Herbst 2012 könnten neue Impulse für eine nationale Klimapolitiksetzen. Dies und eine potentielle Verknüpfung U.S.-amerikanischer Treibhausgas-Märkte mit dem EU-Emissionshandel geben Anlass zur Frage: Wie sind die politisch relevanten U.S.-amerikanischen Emissionshandelssysteme ausgestaltet und wie kann die Ausgestaltung vor dem Hintergrund eines Anforderungskatalogs an nachhaltige Treibhausgasmärkte bewertet werden? Auf der Basis praxisorientierter Designanalysen kann gezeigt werden, dass Defizite in der Ausgestaltung der bisherigen U.S.-amerikanischen Emissionshandelssysteme dazu führen, dass weder ambitionierte Klimaschutzziele erreicht werden noch eine kosteneffiziente Zielerreichung gelingt. Handlungsbedarf zur Verbesserung der Systeme besteht vor allem bei der Gesamtemissionsmenge, potentiellen Markteingriffen und der Anerkennung von Projektkrediten.
Letter from John MacRae [of the Royal Bank of Canada, Vernon (B.C.)] to The Rainbow Ranch[e], April 27, 1908
Creators: name: MacRae, John
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to Rainbow Ranche from John MacRae of the Royal Bank of Canada in Vernon, B.C., dated April 27, 1908, regarding an overdrawn account.
Detecting Broken PT-Symmetry
Creators: name: Weigert, Stefan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A fundamental problem in the theory of PT-invariant quantum systems is to determine whether a given system `respects' this symmetry or not. If not, the system usually develops non-real eigenvalues. It is shown in this contribution how to algorithmically detect the existence of complex eigenvalues for a given PT-symmetric matrix. The procedure uses classical results from stability theory which qualitatively locate the zeros of real polynomials in the complex plane. The interest and value of the present approach lies in the fact that it avoids diagonalization of the Hamiltonian at hand.
description: 8 pages
Spectral statistics for the difference of two Wishart matrices
Creators: name: Kumar, Santosh
name: Charan, S. Sai
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Quantum Physics (quant-ph)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: 15B52, 60B20, 15A18, 81P45, 81Q50

description: In this work, we consider the weighted difference of two independent complex Wishart matrices and derive the joint probability density function of the corresponding eigenvalues in a finite-dimension scenario using two distinct approaches. The first derivation involves the use of unitary group integral, while the second one relies on applying the derivative principle. The latter relates the joint probability density of eigenvalues of a matrix drawn from a unitarily invariant ensemble to the joint probability density of its diagonal elements. Exact closed form expressions for an arbitrary order correlation function are also obtained and spectral densities are contrasted with Monte Carlo simulation results. Analytical results for moments as well as probabilities quantifying positivity aspects of the spectrum are also derived. Additionally, we provide a large-dimension asymptotic result for the spectral density using the Stieltjes transform approach for algebraic random matrices. Finally, we point out the relationship of these results with the corresponding results for difference of two random density matrices and obtain some explicit and closed form expressions for the spectral density and absolute mean.
description: 23 pages, 5 figures, Mathematica codes included as ancillary files (Accepted for publication in J. Phys. A: Math. Theor.)
Entanglement and Thermodynamics of Black Hole Entropy
Creators: name: Brout, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using simple conditions drawn from the stability of the cosmos in terms of vacuum energy density, the cut-off momentum of entanglement is related to the planckian mass. In so doing the black hole entropy is shown to be independent of the number of field species that contribute to vacuum fluctuations. And this is in spite of the fact that the number of field species is a linear multiplicand of the entanglement entropy when this latter is expressed in terms of the fundamental momentum cut-off of all fields.
description: 5 pages
$Herschel$/PACS OH Spectroscopy of Seyfert, LINER, and Starburst Galaxies
Creators: name: Runco, Jordan N.
name: Malkan, Matthew A.
name: Fernández-Ontiveros, Juan Antonio
name: Spinoglio, Luigi
name: Pereira-Santaella, Miguel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigated the 65$μ$m, 71$μ$m, 79$μ$m, 84$μ$m, 119$μ$m, and 163$μ$m OH doublets of 178 local (0 < $z$ < 0.35) galaxies. They were observed using the $Herschel$/PACS spectrometer, including Seyfert galaxies, LINERs, and star-forming galaxies. We observe these doublets exclusively in absorption (OH71), primarily in absorption (OH65, OH84), mostly in emission (OH79), only in emission (OH163) and an approximately even mix of the both (OH119). In 19 galaxies we find P-Cygni or reverse P-Cygni line profiles in the OH doublets. We use several galaxy observables to probe spectral classification, brightness of a central AGN/starburst component, and radiation field strength. We find that OH79, OH119, and OH163 are more likely to display strong emission for bright, unobscured AGN. For less luminous, obscured AGN and non-active galaxies, we find populations of strong absorption (OH119), weaker emission (OH163), and a mix of weak emission and weak absorption (OH79). For OH65, OH71 and OH84, we do not find significant correlations with the observables listed above. We do find relationships between OH79 and OH119 with both the 9.7$μ$m silicate feature and Balmer decrement dust extinction tracers in which more dust leads to weaker emission / stronger absorption. The origin of emission for the observed OH doublets, whether from collisional excitation, or from radiative pumping by infrared photons, is discussed.
description: 29 pages, 10 figures, 5 machine readable tables and 6 supplemental figures available upon request
Stringy Instantons and Quiver Gauge Theories
Creators: name: Florea, Bogdan
name: Kachru, Shamit
name: McGreevy, John
name: Saulina, Natalia
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explore contributions to the 4D effective superpotential which arise from Euclidean D3 branes (``instantons'') that intersect space-filling D-branes. These effects can perturb the effective field theory on the space-filling branes by nontrivial operators composed of charged matter fields, changing the vacuum structure in a qualitative way in some examples. Our considerations are exemplified throughout by a careful study of a fractional brane configuration on a del Pezzo surface.
description: 30 pages, 4 figures; v2: reference added; v3: confusing minor error in axion charges fixed (thanks to D. Green for pointing it out)
Angular dependence of domain wall resistivity in artificial magnetic domain structures
Creators: name: Aziz, A.
name: Bending, S. J.
name: Roberts, H. G.
name: Crampin, S.
name: Heard, P. J.
name: Marrows, C. H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We exploit the ability to precisely control the magnetic domain structure of perpendicularly magnetized Pt/Co/Pt trilayers to fabricate artificial domain wall arrays and study their transport properties. The scaling behaviour of this model system confirms the intrinsic domain wall origin of the magnetoresistance, and systematic studies using domains patterned at various angles to the current flow are excellently described by an angular-dependent resistivity tensor containing perpendicular and parallel domain wall resistivities. We find that the latter are fully consistent with Levy-Zhang theory, which allows us to estimate the ratio of minority to majority spin carrier resistivities, rho-down/rho-up~5.5, in good agreement with thin film band structure calculations.
description: 14 pages, 3 figures
Surface Brightness Evolution of Galaxies in the CANDELS GOODS Fields up to $z \sim 6$: High-z Galaxies are Unique or Remain Undetected
Creators: name: Whitney, Amy
name: Conselice, Christopher
name: Duncan, Kenneth
name: Spitler, Lee
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the rest-frame Ultraviolet (UV, $λ\sim2000$Å) surface brightness (SB) evolution of galaxies up to $z\sim6$ using a variety of deep Hubble Space Telescope imaging. UV SB is a measure of the density of emission from mostly young stars and correlates with an unknown combination of star formation rate, initial mass function, cold gas mass density, dust attenuation, and the size evolution of galaxies. In addition to physical effects, the SB is, unlike magnitude, a more direct way in which a galaxy's detectability is determined. We find a very strong evolution in the intrinsic SB distribution which declines as $(1+z)^{3}$, decreasing by 4-5 mag arcsec$^{-2}$ between $z=6$ to $z=1$. This change is much larger than expected in terms of the evolution in UV luminosity, sizes or dust extinction and we demonstrate that this evolution is 'unnatural' and due to selection biases. We also find no strong correlation between mass and UV SB. Thus, deep HST imaging is unable to discover all of the most massive galaxies in the distant universe. Through simulations we show that only $\sim15$\% of galaxies that we can detect at $z=2$ would be detected at high-$z$. We furthermore explore possible origins of high SB galaxies at high-$z$ by investigating the relationship between intrinsic SB and star formation rates. We conclude that ultra-high SB galaxies are produced by very gas rich dense galaxies which are in a unique phase of evolution, possibly produced by mergers. Analogues of such galaxies do not exist in the relatively nearby universe.
description: Accepted for publication in AAS Journals (ApJ). 25 pages, 14 figures
Equilibrium configurations of fluids and their stability in higher dimensions
Creators: name: Cardoso, Vitor
name: Gualtieri, Leonardo
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study equilibrium shapes, stability and possible bifurcation diagrams of fluids in higher dimensions, held together by either surface tension or self-gravity. We consider the equilibrium shape and stability problem of self-gravitating spheroids, establishing the formalism to generalize the MacLaurin sequence to higher dimensions. We show that such simple models, of interest on their own, also provide accurate descriptions of their general relativistic relatives with event horizons. The examples worked out here hint at some model-independent dynamics, and thus at some universality: smooth objects seem always to be well described by both ``replicas'' (either self-gravity or surface tension). As an example, we exhibit an instability afflicting self-gravitating (Newtonian) fluid cylinders. This instability is the exact analogue, within Newtonian gravity, of the Gregory-Laflamme instability in general relativity. Another example considered is a self-gravitating Newtonian torus made of a homogeneous incompressible fluid. We recover the features of the black ring in general relativity.
description: 42 pages, 11 Figures, RevTeX4. Accepted for publication in Classical and Quantum Gravity. v2: Minor corrections and references added
Proton Profile Function at 52.8 GeV
Creators: name: Silva, Geovanna L. P.
name: Menon, Marcio J.
name: Avila, Regina F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the results of a novel model-independent fit to elastic proton-proton differential cross section data at $\sqrt s$ = 52.8 GeV. Taking into account the error propagation from the fit parameters, we determine the scattering amplitude in the impact parameter space (the proton profile function) and its statistical uncertainty region. We show that both the real and imaginary parts of the profile are consistent with two dynamical contributions, one from a central dense region, up to roughly 1 fm and another from a peripheral evanescent region from 1 to 3 fm.
description: Published in Int. J. Mod. Phys. E
title: Industrial organization in the laboratory
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Albert, Max
name: Hildenbrand, Andreas
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: homo oeconomicus
theory of the firm
behavioural economics
Economics
Wirtschaft
oligopoly theory
industrial organization
laboratory experiments

description: Theories of industrial organization (IO) are tested in the laboratory more and more often. The example we consider throughout the paper is oligopoly theory, specifically, the Cournot and the Stackelberg model of duopolistic quantity competition with homogeneous products. These models have often been subjected to tests: participants were told that they represented firms and received profits according to their chosen quantities. However, testing a theory in the laboratory requires that the experimental design falls into the domain of the theory. The domain of mainstream IO is market behaviour of large (i.e., multi-agent) firms. The basic hypothesis is that these firms maximize profits. This hypothesis cannot be tested in experiments where single agents are told that they represent firms. For a test, it would be necessary to assume that multi-agent groups and single agents show the same behaviour. This assumption is inconsistent with all current theories of individual behaviour and has, moreover, been falsified in many experiments. It follows that many alleged experimental tests of IO models are irrelevant to mainstream IO. This raises the question of whether relevant laboratory tests are possible at all. The answer is positive if one considers theories of the firm that relate organizational behaviour to the internal structure of the firm, like Alchian and Demsetz’s (1972) contractual view of the firm.
The Great Inequality and the Dynamical Disintegration of the Outer Solar System
Creators: name: Zink, Jon K.
name: Batygin, Konstantin
name: Adams, Fred C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using an ensemble of N-body simulations, this paper considers the fate of the outer gas giants (Jupiter, Saturn, Uranus, and Neptune) after the Sun leaves the main sequence and completes its stellar evolution. Due to solar mass-loss -- which is expected to remove roughly half of the star's mass -- the orbits of the giant planets expand. This adiabatic process maintains the orbital period ratios, but the mutual interactions between planets and the width of mean-motion resonances (MMR) increase, leading to the capture of Jupiter and Saturn into a stable 5:2 resonant configuration. The expanded orbits, coupled with the large-amplitude librations of the critical MMR angle, make the system more susceptible to perturbations from stellar flyby interactions. Accordingly, within about 30 Gyr, stellar encounters perturb the planets onto the chaotic sub-domain of the 5:2 resonance, triggering a large-scale instability, which culminates in the ejections of all but one planet over the subsequent $\sim10$ Gyr. After an additional $\sim50$ Gyr, a close stellar encounter (with a perihelion distance less than $\sim200$ AU) liberates the final planet. Through this sequence of events, the characteristic timescale over which the solar system will be completely dissolved is roughly 100 Gyr. Our analysis thus indicates that the expected dynamical lifetime of the solar system is much longer than the current age of the universe, but is significantly shorter than previous estimates.
description: 12 pages, 5 figures; accepted for publication in AJ
ก้อนมนุษย์ ความกดดันและความเจ็บปวด
Creators: name: ศิริกร อิ่นคำ
name: พงศ์เดช ไชยคุตร
name: รสลิน กาสต์
name: สุรสวัสดิ์ ศุขสวัสดิ์
Publisher: name: สำนักงานบริหารการวิจัย นวัตกรรมและการสร้างสรรค์
Year: 2562
Subjects: ก้อนมนุษย์
ความกดดันและความเจ็บปวด
ประติมากรรมสื่อผสมแบบจัด

description: วารสารมหาวิทยาลัยศิลปากร, 39, 3, 1.-19
Crystal Melting and Black Holes
Creators: name: Heckman, Jonathan J.
name: Vafa, Cumrun
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It has recently been shown that the statistical mechanics of crystal melting maps to A-model topological string amplitudes on non-compact Calabi-Yau spaces. In this note we establish a one to one correspondence between two and three dimensional crystal melting configurations and certain BPS black holes given by branes wrapping collapsed cycles on the orbifolds C^2/Z_n and C^3/Z_n x Z_n in the large n limit. The ranks of gauge groups in the associated gauged quiver quantum mechanics determine the profiles of crystal melting configurations and the process of melting maps to flop transitions which leave the background Calabi-Yau invariant. We explain the connection between these two realizations of crystal melting and speculate on the underlying physical meaning.
description: 43 pages, 7 figures
Tuumanp 'axwé review and explanation
Creators: name: Allen, Howard
name: Halpern, Abraham M.
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: yum

description: 2 WAV files. Side A labeled as from November 8, Side B as from November 7. For associated notebook, see Margaret Langdon Papers (Bancroft Library), carton 9, folder 43. Digitization by the Berkeley Language Center.
title: The Changing Dynamics of US Inflation Persistence: a Quantile Regression Approach
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Tillmann, Peter
name: Wolters, Maik H.
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: mon- etary policy
quantile regressions
structural breaks
inflation persistence
Economics
Wirtschaft
Federal Reserve

description: We examine both the degree and the structural stability of inflation persis-
tence at different quantiles of the conditional inflation distribution. Previous
research focused exclusively on persistence at the conditional mean of the in-
flation rate. Economic theory, however, provides various reasons -for example
downward wage rigidities or menu costs- to expect higher inflation persistence
at the upper than at the lower tail of the conditional inflation distribution.
Based on post-war US data we indeed find slower mean reversion in response to positive than to negative shocks. We find robust evidence for a structural break in persistence at all quantiles of the inflation process in the early 1980s. Inflation persistence has decreased and become more homogeneous across quantiles. Persistence at the conditional mean became more informative about the degree of persistence across the entire conditional inflation distribution. While prior to the 1980s inflation was not mean reverting in response to large positive shocks, our evidence strongly suggests that since the end of the Volcker disinflation the unit root can be rejected at every quantile including the upper tail of the conditional inflation distribution.
ผ้าพันคอพิมพ์ลายเรขศิลป์จากลวดลายส่วนประดับของปราสาทขอม กับการยอมรับผลิตภัณฑ์
Creators: name: สมบัติ ประจญศานต์
Publisher: name: สำนักงานบริหารการวิจัย นวัตกรรมและการสร้างสรรค์
Year: 2562
Subjects: การออกแบบผลิตภัณฑ์
การยอมรับผลิตภัณฑ์
ผ้าพิมพ์ลาย
ปราสาทขอม
ผ้าพันคอ

description: วารสารมหาวิทยาลัยศิลปากร, 39, 3, 20.-32
title: Reaching for the Stars: An Experimental Study of the Consumption Value of Social Approval
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Greiff, Matthias
name: Paetzel, Fabian
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: xperimental Economics
Non-monetary Incentives, Social Approval.
Economics
Wirtschaft
Linear Public Good Games

description: We present a theoretical model of a linear public good game in which heterogeneous players express social approval after observing contributions. The model explains how social approval is expressed and predicts positive contributions if subjects have a preference for social approval. Using a controlled laboratory experiment we test our model. In the experiment, subjects conduct computerized tasks that require substantial effort resulting in endowments from which contributions can be made to a linear public good. After observing others’ contributions subjects express social approval. Our main hypothesis is that subjects have a preference for social approval so that the expression of social approval will increase contributions, even if reputation building is impossible. We vary the information available to subjects and investigate how this affects the expression of social approval and individual contributions. Our main finding is that the expression of social approval significantly increases contributions. However, the increase in contributions is smaller if additional information is provided, suggesting that social approval is more effective if subjects receive a noisy signal about others’ contributions.
รูปแบบคำแสดงการเน้นเสริมความของผู้หญิงกับผู้ชาย ในภาษาไทยและภาษาเยอรมัน
Creators: name: สุทธิดา ซุ้ยเล็ก
name: กรกช อัตตวิริยะนุภาพ
Publisher: name: สำนักงานบริหารการวิจัย นวัตกรรมและการสร้างสรรค์
Year: 2562
Subjects: คำที่ใช้เน้นเสริมความ
ผู้หญิง
ผู้ชาย
ภาษาไทย
ภาษาเยอรมัน

description: วารสารมหาวิทยาลัยศิลปากร, 39, 3, 33-47
title: Leaders’ Impact on Public Spending Priorities: The Case of the German Laender*
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Hayo, Bernd
name: Neumeier, Florian
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: Leadership
Economics
Wirtschaft
socioeconomic status
public expenditure composition.
social rivalry

description: We examine determinants of the composition of public expenditure in the German Laender (states) over the period 1992–2008, as the Laender exhibit a high degree of institutional and political homogeneity and are endowed with extensive fiscal competences. Our prime contribution is an investigation into how political leaders’ socioeconomic background influences public spending priorities. Applying sociological theory, we link preferences for the composition of public spending to social status. In contrast to approaches relying on political budget cycles or partisan theory, we find strong and theory-consistent evidence that prime ministers tend to favour fiscal policies supporting the social class in which they are socialised. Governments led by prime ministers from a poor socioeconomic background spend significantly more on social security, education, health, infrastructure, and public safety.
title: Unemployment Benefits as Redistribution Scheme of Trade Gains - a Positive Analysis
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: de Pinto, Marco
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: tradeliberalization,heterogeneousfirms,tradeunions, skill-specificunemployment,unemploymentbenefits,taxes
Economics
Wirtschaft

description: Trade liberalization is no Pareto-improvement - there are winners
(high-skilled) and losers (low-skilled).To compensate the losers the government is assumed to introduce unemployment benefits (UB).These benefits are financed by either a wage tax, a payroll tax, or a profitax. Using
a Melitz -type model of international trade with unionized labor markets
and heterogeneous workers we show that: (i) there is a threshold level of
UB where all trade gains are destroyed, (ii) this threshold differs between
different kind of taxes, (iii) there is a clear cut ranking in terms of welfare
for the chosen funding of the UB: 1. wagetax, 2. profittax, 3. payroll
tax.
Delta-Function Potential with a Complex Coupling
Creators: name: Mostafazadeh, Ali
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We explore the Hamiltonian operator H=-d^2/dx^2 + z δ(x) where x is real, δ(x) is the Dirac delta function, and z is an arbitrary complex coupling constant. For a purely imaginary z, H has a (real) spectral singularity at E=-z^2/4. For \Re(z)<0, H has an eigenvalue at E=-z^2/4. For the case that \Re(z)>0, H has a real, positive, continuous spectrum that is free from spectral singularities. For this latter case, we construct an associated biorthonormal system and use it to perform a perturbative calculation of a positive-definite inner product that renders H self-adjoint. This allows us to address the intriguing question of the nonlocal aspects of the equivalent Hermitian Hamiltonian for the system. In particular, we compute the energy expectation values for various Gaussian wave packets to show that the non-Hermiticity effect diminishes rapidly outside an effective interaction region.
description: Published version, 14 pages, 2 figures
Fluxes, Brane Charges and Chern Morphisms of Hyperbolic Geometry
Creators: name: Bonora, L.
name: Bytsenko, A. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The purpose of this paper is to provide the reader with a collection of results which can be found in the mathematical literature and to apply them to hyperbolic spaces that may have a role in physical theories. Specifically we apply K-theory methods for the calculation of brane charges and RR-fields on hyperbolic spaces (and orbifolds thereof). It is known that by tensoring K-groups with the rationals, K-theory can be mapped to rational cohomology by means of the Chern character isomorphisms. The Chern character allows one to relate the analytic Dirac index with a topological index, which can be expressed in terms of cohomological characteristic classes. We obtain explicit formulas for Chern character, spectral invariants, and the index of a twisted Dirac operator associated with real hyperbolic spaces. Some notes for a bivariant version of topological K-theory (KK-theory) with its connection to the index of the twisted Dirac operator and twisted cohomology of hyperbolic spaces are given. Finally we concentrate on lower K-groups useful for description of torsion charges.
description: 26 pages, no figures, LATEX. To appear in the Classical and Quantum Gravity
Effects of Magnetic Fields on HPGe Tracking Detectors
Creators: name: Lee, I. Y.
name: Macchiavelli, A. O.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present a study of magnetic fields effects on the position resolution and energy response of hyper-pure germanium detectors. Our results provide realistic estimates of the potential impact on the resolving power of tracking-arrays from (fringe) magnetic fields present when operating together with large spectrometers. By solving the equations of motion for the electron and holes in the presence of both electric and magnetic fields, we analyzed the drift trajectories of the charge carriers to determine the deviations in the positions at the end point of the trajectories, as well as changes in drift lengths affecting the energy resolution and peak shift due to trapping. Our results show that the major effect is in the deviation of the transverse (to the electric field direction) position and suggest that, if no corrective action is taken in the pulse-shape and tracking data analysis procedures, a field strength $\gtrsim$ 0.1 T will start to impact the intrinsic position resolution of 2 mm (RMS). At fields above $\sim$1 T, the degradation of the energy response becomes observable.
description: 6 pages, 9 figures, 2 tables. Submitted to Nucl. Instrum. Methods Phys. Res. A
Development of parametric amplifiers for high-power tuneable laser sources
Creators: name: Duering, Malte Werner
Publisher: name: The Australian National University
Year: 2018
Subjects: subject: TK7871.24.D84 2011
subject: Parametric amplifiers
subject: Tunable lasers
subject: Laser pulses, Ultrashort

description: Countless technologies, ranging from spectroscopy to material processing, require coherent light delivered in short pulses. Solid state laser technology can produce a wide range of pulse durations and repetition rates in nearly diffraction limited beams at ever increasing output powers, but the output wavelength is ultimately determined and limited by the laser gain material. If the wavelength required for a particular application cannot be met by an appropriate laser, nonlinear optics has to be employed to convert the light produced by a pump laser to the required wavelength. This thesis explores the generation of several Watts of coherent radiation in pico-second duration pulses, using optical parametric amplifiers to produce wavelengths that cannot be obtained directly from a laser. Optical parametric amplifiers (OPA) are versatile tools for the generation of tuneable light and have several advantages over alternative devices such as optical parametric oscillators or optical parametric generators. They do not require a resonant cavity and their output characteristics are directly determined by the temporal and spatial characteristics of the pump. Since an OPA is seeded by a second laser source, this results in excellent output frequency control and can lead to "push button" tuneability due to the large OPA gain bandwidth. When high output power is required, it is of advantage to cascade several OPAs in series as will be discussed in this work. The use of OPAs to address the requirements of two very different applications is described in this thesis. One requires visible 589nm radiation for the generation of a sodium guidestar source required for adaptive optics used with astronomical telescopes. The other application relies on tuneable mid-infrared picosecond pulses, needed to evaporate polymers via resonant infrared pulsed laser deposition (RIR-PLD), a physical vapor deposition process for the generation of thin polymer films. Various schemes, relying on quasi phase matching and birefringent phase matching using different nonlinear materials were investigated. The factors that optimise the efficiency of OPAs aimed at multi-Watt outputs are discussed. Cascading is employed to overcome output power limitations of a single OPA stage whilst maintaining good beam quality and frequency control. An OPA emitting in the mid-infrared was used to characterise the ablation of polystyrene by RIR-PLD using single picosecond mid-IR pulses for the first time. Several peer-reviewed publications resulted from the work discussed in this thesis.They are listed in the Appendix.
title: A Historical Note on the Beauty Contest
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Bühren, Christoph
name: Frank, Björn
name: Nagel, Rosemarie
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: Economics
Wirtschaft

description: Alain Ledoux, who was one of over 6,000 chess players taking part in Bühren and Frank´s (2012) online Beauty Contest experiment, turned out to be the forgotten inventor of that game. We reconstruct the birth of the Beauty Contest. In section 1 of our note, its first two authors outline the history of the game that metamorphosed into the famous guessing game experiment which was first run in the lab by Rosemarie Nagel. In section 2, Rosemarie Nagel adds further remarks and thoughts about the development of the experimental Beauty Contest.
Death in Tasmania: Using civil death registers to measure ninteenth-century cause-specific mortality
Creators: name: Kippen, Rebecca
Publisher: name: Canberra, ACT : The Australian National University
Year: 2012

description: Studies of nineteenth-century cause-specific mortality date from the nineteenth century itself. Of necessity, most of these studies are based on published cause-of-death data, where causes have already been classified according to some system, rather than data from the original death registers. This thesis investigates nineteenth-century Tasmanian mortality. The main data source for this investigation is a computer database containing individual-level death-registration data for Tasmania from the period 1838-99. Annual life tables are calculated using adjusted census and death registration data. Causes of death are analysed using a new cause-:of-death classification system that combines elements from the Farr system of registration, in use in England and adopted in Tasmania in the nineteenth century, and the latest revision of the International Statistical Classification of Diseases and Related Health Problems. The study seeks to answer the following three questions: How accurately were causes of death registered in nineteenth-century Tasmania? How were causes of death classified in the Statistics of Tasmania? What were the mortality patterns and trends over time in Tasmania and what causes of death resulted in these patterns and trends? The thesis confirms the need for researchers to be aware of the pitfalls of nineteenth century cause-of-death data, while recognising the wealth of information that such data can provide about nineteenth-century causes of death, and perceptions of these causes. The thesis also emphasises the importance of considering changes in mortality over time separately by age. The causes of mortality in infancy, childhood, adulthood and middle and old age were all very different, and calculating just one measure of mortality, such as life expectancy or an age-standardised mortality rate, often masks the very different trends occurring for various life stages.
title: Window-Dressing and Lobbying in Performance-Budgeting: a Model for the Public Sector
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Bischoff, Ivo
name: Blaeschke, Frédéric
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: Economics
Wirtschaft
bureaucracy
opportunistic government
rent-seeking
Performance budgeting
public-sector efficiency, conditional grants

description: Performance budgeting schemes in the public sector have to operate with imperfect performance measures. We argue that these imperfections lead to wasteful fund-seeking (window dressing and lobbying) by the administrative units that produce public services. We develop a game-theoretical model to analyse the trade-off between the productivity-enhancing effect of performance budgeting and the social waste it induces. The optimal performancebudgetingscheme crucially depends on the objective functions of administrative units, the available performance signal and the welfare function used. We compare a performance signal base on units’ effort to a signal based on their output and show that the former evokes more social waste while the latter amplifies regional inequality. Forgone welfare gains or even welfare losses arise when the government is opportunistic. Our model and its major conclusions apply to a large array of publicly installed contests such as programs of international organisations like the IMF and conditional grant schemes in federalist countries.
Letter from J.M. Pattullo (Pacific Box Company) to W.J. Brandrith, May 1, 1908
Creators: name: Pattullo, J.M.
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to W.J. Brandrith (Secretary B.C. Fruit Growers) from J.M. Pattullo of the Pacific Box Company, dated May 1, 1908, regarding a request for a share of the Fruit Trade and an offer of quotes.
title: Evaluating FOMC forecast ranges: an interval data approach
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Fischer, Henning
name: García-Bárzana, Marta
name: Tillmann, Peter
name: Winker, Peter
Publisher: name: Philipps-Universität Marburg
Year: 2012
Subjects: Forecast evaluation · interval data · Federal Reserve · monetary policy
Economics
Wirtschaft

description: The Federal Open Market Committee (FOMC) of the U.S. Federal Reserve publishes the range of members’ forecasts for key macroeconomic variables, but not the distribution of forecasts within this range. To evaluate these projections, previous papers compare the midpoint of the range with the realized outcome. This paper proposes a new approach to forecast evaluation that takes account of the interval nature of projections. It is shown that using the conventional Mincer-Zarnowitz approach to evaluate FOMC forecasts misses important information contained in the width of the forecast interval. This additional information plays a minor role at short forecast horizons but turns out to be of sometimes crucial importance for longer-horizon forecasts. For 18-month-ahead forecasts the variation of members’ projections contains information which is more relevant for explaining future inflation than information embodied in the midpoint. The midpoint also disqualifies as an unbiased forecast to be used on its own when considering longer-range forecast intervals for real GDP growth and the unemployment rate.
How One can Repair Non-integrable Kahan Discretizations. II. A Planar System with Invariant Curves of Degree 6
Creators: name: Schmalian, Misha
name: Suris, Yuri B.
name: Tumarkin, Yuriy
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Article
Birational maps
Discrete integrable systems
Elliptic pencil
Rational elliptic surface
Integrable discretization

description: Abstract: We find a novel one-parameter family of integrable quadratic Cremona maps of the plane preserving a pencil of curves of degree 6 and of genus 1. They turn out to serve as Kahan-type discretizations of a novel family of quadratic vector fields possessing a polynomial integral of degree 6 whose level curves are of genus 1, as well. These vector fields are non-homogeneous generalizations of reduced Nahm systems for magnetic monopoles with icosahedral symmetry, introduced by Hitchin, Manton and Murray. The straightforward Kahan discretization of these novel non-homogeneous systems is non-integrable. However, this drawback is repaired by introducing adjustments of order O(ϵ2) in the coefficients of the discretization, where ϵ is the stepsize.
Continuous measurements for control of superconducting quantum circuits
Creators: name: Hacohen-Gourgy, Shay
name: Martin, Leigh S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Developments over the last two decades have opened the path towards quantum technologies in many quantum systems, such as cold atoms, trapped ions, cavity-quantum electrodynamics (QED), and circuit-QED. However the fragility of quantum states to the effects of measurement and decoherence still poses one of the greatest challenges in quantum technology. An imperative capability in this path is quantum feedback, as it enhances the control possibilities and allows for prolonging coherence times through quantum error correction. While changing parameters from shot to shot of an experiment or procedure can be considered feedback, quantum mechanics also allows for the intriguing possibility of performing feedback operations during the measurement process itself. This broader approach to measurements leads to the concepts of weak measurement, quantum trajectories and numerous types of feedback with no classical analogues. These types of processes are the primary focus of this review. We introduce the concept of quantum feedback in the context of circuit QED, an experimental platform with significant potential in quantum feedback and technology. We then discuss several experiments and see how they elucidate the concepts of continuous measurements and feedback. We conclude with an overview of coherent feedback, with application to fault-tolerant error correction.