cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Existence of real time quantum path integrals
Creators: name: Feldbrugge, Job
name: Turok, Neil
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Many interesting physical theories have analytic classical actions. We show how Feynman's path integral may be defined non-perturbatively, for such theories, without a Wick rotation to imaginary time. We start by introducing a class of smooth regulators which render interference integrals absolutely convergent and thus unambiguous. The analyticity of the regulators allows us to use Cauchy's theorem to deform the integration domain onto a set of relevant, complex "thimbles" (or generalized steepest descent contours) each associated with a classical saddle. The regulator can then be removed to obtain an exact, non-perturbative representation. We show why the usual method of gradient flow, used to identify relevant saddles and steepest descent "thimbles" for finite-dimensional oscillatory integrals, fails in the infinite-dimensional case. For the troublesome high frequency modes, we replace it with a method we call "eigenflow" which we employ to identify the infinite-dimensional, complex "eigenthimble" over which the real time path integral is absolutely convergent. We then bound the path integral over high frequency modes by the corresponding Wiener measure for a free particle. Using the dominated convergence theorem we infer that the interacting path integral defines a good measure. While the real time path integral is more intricate than its Euclidean counterpart, it is superior in several respects. It seems particularly well-suited to theories such as quantum gravity where the classical theory is well developed but the Euclidean path integral does not exist.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸Ð½Ð²ÐµÑÑÐ¸ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ°ÐºÐ°Ñ, ÐÐ»ÐµÐºÑÐ°Ð½Ð´ÑÐ°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: Ð¸Ð½Ð²ÐµÑÑÐ¸ÑÐ¸Ð¸
Ð¸Ð½Ð²ÐµÑÑÐ¸ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð¿ÑÐ¾ÐµÐºÑÑ
ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾-Ñ Ð¾Ð·ÑÐ¹ÑÑÐ²ÐµÐ½Ð½Ð°Ñ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÑ
Ð¸Ð½Ð²ÐµÑÑÐ¸ÑÐ¸Ð¾Ð½Ð½ÑÐµ ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¸

description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ ÐÐÐ Â«Ð¡Ð¿ÑÑÐ½Ð¸ÐºÂ». Ð¦ÐµÐ»ÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸Ð½Ð²ÐµÑÑÐ¸ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ ÐÐÐ Â«Ð¡Ð¿ÑÑÐ½Ð¸ÐºÂ» Ð¸ Ð²ÑÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐµÑÐµÐ½Ð¸Ñ Ð¾ ÑÐµÐ»ÐµÑÐ¾Ð¾Ð±ÑÐ°Ð·Ð½Ð¾ÑÑÐ¸ ÐµÐµ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸. ÐÑÐ» Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÐµÐ¹ ÑÐ¾Ð·ÑÐ¹ÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ Ð½Ð° Ð±Ð°Ð·Ðµ Ð³Ð¾ÑÐ¸Ð·Ð¾Ð½ÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¸ Ð²ÐµÑÑÐ¸ÐºÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð±Ð°Ð»Ð°Ð½ÑÐ°. ÐÑÐ´ÐµÐ»ÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð¾ÑÐºÐ»Ð¾Ð½ÐµÐ½Ð¸Ñ: ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ðµ Ð´ÐµÐ½ÐµÐ¶Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ² Ð¸ Ð¿Ð¾Ð½Ð¸Ð¶ÐµÐ½Ð¸Ðµ Ð·Ð°Ð¿Ð°ÑÐ¾Ð² ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÐ¼Ð¾Ð³Ð¾ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ. ÐÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¼ÐµÑÑ ÑÐµÑÐµÐ½Ð¸Ñ Ð´Ð°Ð½Ð½ÑÑ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼.
A unified model for Sierpinski networks with scale-free scaling and small-world effect
Creators: name: Guan, Jihong
name: Wu, Yuewen
name: Zhang, Zhongzhi
name: Zhou, Shuigeng
name: Wu, Yonghui
Publisher: name: arXiv
Year: 2009
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In this paper, we propose an evolving Sierpinski gasket, based on which we establish a model of evolutionary Sierpinski networks (ESNs) that unifies deterministic Sierpinski network [Eur. Phys. J. B {\bf 60}, 259 (2007)] and random Sierpinski network [Eur. Phys. J. B {\bf 65}, 141 (2008)] to the same framework. We suggest an iterative algorithm generating the ESNs. On the basis of the algorithm, some relevant properties of presented networks are calculated or predicted analytically. Analytical solution shows that the networks under consideration follow a power-law degree distribution, with the distribution exponent continuously tuned in a wide range. The obtained accurate expression of clustering coefficient, together with the prediction of average path length reveals that the ESNs possess small-world effect. All our theoretical results are successfully contrasted by numerical simulations. Moreover, the evolutionary prisoner's dilemma game is also studied on some limitations of the ESNs, i.e., deterministic Sierpinski network and random Sierpinski network.
description: final version accepted for publication in Physica A
Constraining resonant dark matter self-interactions with strong gravitational lenses
Creators: name: Gilman, Daniel
name: Zhong, Yi-Ming
name: Bovy, Jo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We devise a method to constrain self-interacting dark matter (SIDM) from observations of quadruply-imaged quasars, and apply it to five self-interaction potentials with a long-range dark force. We consider several SIDM models with an attractive potential that allows for the formation of quasi-bound states, giving rise to resonant features in the cross section localized at particular velocities below $50 \ \rm{km} \ \rm{s^{-1}}$. We propose these resonances, which amplify or suppress the cross section amplitude by over an order of magnitude, accelerate or delay the onset of core collapse in low-mass dark matter halos, and derive constraints on the timescale for core collapse for the five interaction potentials we consider. Our data strongly disfavors scenarios in which a majority of halos core collapse, with the strongest constraints obtained for cross section strengths exceeding $100 \ \rm{cm^2} \rm{g}^{-1}$ at relative velocities below $30 \ \rm{km} \ \rm{s^{-1}}$. This work opens a new avenue to explore the vast landscape of possible SIDM theories.
description: accepted for publication in PRD
title: Ð¡Ð¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼ Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐÐÐ Â«Ð ÐµÐ¼Ð­Ð½ÐµÑÐ³Ð¾Â»
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
Creators: name: Ð£ÐºÐ¾Ð»Ð¾Ð²Ð°, ÐÐ½Ð°ÑÑÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: ÑÑÐ¸Ð¼ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð°
Ð¿Ð¾Ð¾ÑÑÐµÐ½Ð¸Ðµ ÑÐ°Ð±Ð¾ÑÐ½Ð¸ÐºÐ¾Ð²
ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼
Ð¼Ð¾ÑÐ¸Ð²Ð°ÑÐ¸Ð¸ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð°

description: Ð¦ÐµÐ»ÑÑ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹ Ð¿Ð¾ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ ÐÐÐ Â«Ð ÐµÐ¼Ð­Ð½ÐµÑÐ³Ð¾Â». Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±ÑÐ»Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ñ, Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑÑÐ¸Ðµ Ð¿Ð¾Ð²ÑÑÐ¸ÑÑ Ð¼Ð¾ÑÐ¸Ð²Ð°ÑÐ¸Ñ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÐºÐ¾Ð² Ð¸ ÑÐ½Ð¸Ð·Ð¸ÑÑ ÑÐµÐºÑÑÐµÑÑÑ ÐºÐ°Ð´ÑÐ¾Ð².
Mapping the Spatial Distribution of Dust Extinction in NGC 959 Using Broadband Visible and mid-IR Filters
Creators: name: Tamura, K.
name: Jansen, R. A.
name: Windhorst, R. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a method to estimate and map the two-dimensional distribution of dust extinction in the late-type spiral galaxy NGC 959 from the theoretical and observed flux ratio of optical V and mid-IR (MIR) 3.6 micron images. Our method is applicable to both young and old stellar populations for a range of metallicities, and is not restricted to lines-of-sight toward star-formation (SF) regions. We explore this method using a pixel-based analysis on images of NGC 959 obtained in the V-band at the Vatican Advanced Technology Telescope (VATT) and at 3.6 micron (L-band) with Spitzer/IRAC. We present the original and extinction corrected GALEX far-UV (FUV) and near-UV (NUV) images, as well as optical UBVR images of NGC 959. While the dust lanes are not clearly evident at GALEX resolution, our dust map clearly traces the dust that can be seen silhouetted against the galaxy's disk in the high-resolution HST images of NGC 959. The advantages of our method are: (1) it only depends on two relatively common broadband images in the optical V-band and in the MIR at 3.6 micron (but adding a near-UV band improves its fidelity); and (2) it is able to map the two-dimensional spatial distribution of dust within a galaxy. This powerful tool could be used to measure the detailed distribution of dust extinction within higher redshift galaxies to be observed with, e.g., the HST/WFC3 (optical--near-IR) and JWST (mid-IR), and to distinguish properties of dust within galaxy bulges, spiral arms, and inter-arm regions.
description: 23 pages, LaTeX2e requires 'emulateapj.cls','psfig.sty' and 'natbib.sty' (included), 33 postscript figures, 2 tables. Accepted for publication in AJ
Redshift Evolution of the Feedback / Cooling Equilibrium in the Core of 48 SPT Galaxy Clusters: A Joint $\boldsymbol{Chandra}$-SPT-ATCA analysis
Creators: name: Ruppin, F.
name: McDonald, M.
name: Hlavacek-Larrondo, J.
name: Bayliss, M.
name: Bleem, L. E.
name: Calzadilla, M.
name: Edge, A. C.
name: Filipović, M. D.
name: Floyd, B.
name: Garmire, G.
name: Khullar, G.
name: Kim, K. J.
name: Kraft, R.
name: Mahler, G.
name: Norris, R. P.
name: O'Brien, A.
name: Reichardt, C. L.
name: Somboonpanyakul, T.
name: Stark, A. A.
name: Tothill, N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We analyze the cooling and feedback properties of 48 galaxy clusters at redshifts $0.4 < z < 1.3$ selected from the South Pole Telescope (SPT) catalogs to evolve like the progenitors of massive and well-studied systems at $z{\sim}0$. We estimate the radio power at the brightest cluster galaxy (BCG) location of each cluster from an analysis of Australia Telescope Compact Array (ATCA) data. Assuming that the scaling relation between radio power and active galactic nucleus (AGN) cavity power $P_{\mathrm{cav}}$ observed at low redshift does not evolve with redshift, we use these measurements in order to estimate the expected AGN cavity power in the core of each system. We estimate the X-ray luminosity within the cooling radius $L_{\mathrm{cool}}$ of each cluster from a joint analysis of the available $Chandra$ X-ray and SPT Sunyaev-Zel'dovich (SZ) data. This allows us to characterize the redshift evolution of the $P_{\mathrm{cav}} / L_{\mathrm{cool}}$ ratio. When combined with low-redshift results, these constraints enable investigations of the properties of the feedback/cooling cycle across 9~Gyr of cluster growth. We model the redshift evolution of this ratio measured for cool core clusters by a log-normal distribution $\mathrm{Log}$-$\mathcal{N}(α+ βz, σ^2)$ and constrain the slope of the mean evolution $β= -0.05\pm 0.47$. This analysis improves the constraints on the slope of this relation by a factor of two. We find no evidence of redshift evolution of the feedback/cooling equilibrium in these clusters which suggests that the onset of radio-mode feedback took place at an early stage of cluster formation. High values of $P_{\mathrm{cav}} / L_{\mathrm{cool}}$ are found at the BCG location of non-cool core clusters which might suggest that the timescales of the AGN feedback cycle and the cool core / non-cool core transition are different.
description: Submitted to The Astrophysical Journal
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÐºÐ¾Ð½ÑÐµÐ¿ÑÐ¸Ð¸ ÑÑÐ°Ð½ÑÐ°Ð¹Ð·Ð¸Ð½Ð³Ð¾Ð²Ð¾Ð³Ð¾ Ð±Ð¸Ð·Ð½ÐµÑÐ°
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐµÐ»ÐµÐ½ÑÐºÐ°Ñ, ÐÐ¸ÐºÑÐ¾ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: ÑÑÐ°Ð½ÑÐ°Ð¹Ð·Ð¸Ð½Ð³
ÐºÐ¾Ð½ÑÐµÐ¿ÑÐ¸Ð¸ ÑÑÐ°Ð½ÑÐ°Ð¹Ð·Ð¸Ð½Ð³Ð¾Ð²Ð¾Ð³Ð¾ Ð±Ð¸Ð·Ð½ÐµÑÐ°
Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾-ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸
ÑÑÐ°Ð½ÑÐ¸Ð·Ð¾ÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾ÑÑÑ
ÑÑÐ½Ð¾Ðº ÑÑÐ°Ð½ÑÐ¸Ð·
ÑÑÐ¾Ðº Ð¾ÐºÑÐ¿Ð°ÐµÐ¼Ð¾ÑÑÐ¸
Ð¸Ð½Ð²ÐµÑÑÐ¸ÑÐ¸Ð¾Ð½Ð½ÑÐ¹ Ð¿ÑÐ¾ÐµÐºÑ

description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ ÐÐÐ Â«ÐÐ¾ÑÑÐ¸-Ð¢Ð°Ð¹ÑÂ». Ð¦ÐµÐ»ÑÑ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾-ÑÐ¾Ð·ÑÐ¹ÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ ÐÐÐ Â«ÐÐ¾ÑÑÐ¸-Ð¢Ð°Ð¹ÑÂ» Ð¸ Ð¿Ð¾Ð¿ÑÑÐºÐ° Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ñ ÑÑÐ°Ð½ÑÐ°Ð¹Ð·Ð¸Ð½Ð³Ð° Ð² ÑÑÑ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ñ. Ð Ð¿ÑÐ¾ÑÐµÑÑÐµ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð¸ Ð¸Ð·ÑÑÐµÐ½Ñ ÑÑÑÐ½Ð¾ÑÑÑ, Ð²Ð¸Ð´Ñ, Ð¿ÑÐµÐ¸Ð¼ÑÑÐµÑÑÐ²Ð° Ð¸ Ð½ÐµÐ´Ð¾ÑÑÐ°ÑÐºÐ¸ ÑÑÐ°Ð½ÑÐ°Ð¹Ð·Ð¸Ð½Ð³Ð°, Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½ Ð¿ÑÐ¾ÑÐµÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ ÑÑÐ°Ð½ÑÐ°Ð¹Ð·Ð¸Ð½Ð³Ð¾Ð²Ð¾Ð¹ ÐºÐ¾Ð½ÑÐµÐ¿ÑÐ¸Ð¸, ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÑÐ°Ð½ÑÐ°Ð¹Ð·Ð¸Ð½Ð³Ð° Ð² Ð Ð¾ÑÑÐ¸Ð¸. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð´Ð°Ð½Ð½ÑÑ ÐÐÐ Â«ÐÐ¾ÑÑÐ¸-Ð¢Ð°Ð¹ÑÂ» ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð° ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ° Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¸ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÐµÐµ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾-ÑÐ¾Ð·ÑÐ¹ÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸. ÐÑÐµÐ½ÐµÐ½Ð° Ð³Ð¾ÑÐ¾Ð²Ð½Ð¾ÑÑÑ ÐÐÐ Â«ÐÐ¾ÑÑÐ¸-Ð¢Ð°Ð¹ÑÂ» Ðº Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ñ ÑÑÐ°Ð½ÑÐ°Ð¹Ð·Ð¸Ð½Ð³Ð¾Ð²Ð¾Ð¹ ÐºÐ¾Ð½ÑÐµÐ¿ÑÐ¸Ð¸ Ð±Ð¸Ð·Ð½ÐµÑÐ°, Ð²ÑÑÐ²Ð»ÐµÐ½Ð° Ð½ÐµÐ³Ð¾ÑÐ¾Ð²Ð½Ð¾ÑÑÑ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ðº Ð´Ð°Ð½Ð½Ð¾Ð¼Ñ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ñ. ÐÐ°Ð»ÐµÐµ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÑÐ½ÐºÐ° ÑÑÐ°Ð½ÑÐ¸Ð· Ð² Ð Ð¾ÑÑÐ¸Ð¸, Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ ÑÑÐ°Ð¿Ñ Ð¿ÑÐ¸Ð¾Ð±ÑÐµÑÐµÐ½Ð¸Ñ ÑÑÐ°Ð½ÑÐ°Ð¹Ð·Ð¸Ð½Ð³Ð¾Ð²Ð¾Ð³Ð¾ Ð¿Ð°ÐºÐµÑÐ° Ð¸ Ð¾ÑÐµÐ½ÐµÐ½Ð° ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ Ð²Ð»Ð¾Ð¶ÐµÐ½Ð½ÑÑ ÑÑÐµÐ´ÑÑÐ².
Local density of state fluctuations in 2D superconductor as a probe of quantum diffusion
Creators: name: Lizée, Mathieu
name: Stosiek, Matthias
name: Brun, Christophe
name: Burmistrov, Igor
name: Cren, Tristan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The interplay of superconductivity and disorder generates a wealth of complex phenomena. In particular, the peculiar structure of diffusive electronic wavefunctions is predicted to increase the superconducting critical temperature in some range of disorder. In this work, we use an epitaxial monolayer of lead showing a simple band structure and homogenous structural disorder as a model system of a 2D superconductor in the weak-antilocalization regime. Then, we perform an extensive study of the emergent fluctuations of local density of states (LDOS) and spectral energy gap in this material and compare them with both analytical results and numerical solution of the attractive Hubbard model. We show that mesoscopic LDOS fluctuations allow to probe locally both the elastic and inelastic scattering rates which are notoriously difficult to measure in transport measurements.
description: Accepted for publication in PRB - 13 pages, 6 figures
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¸ ÑÐµÐ³Ð¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ ÑÐµÐ½ÑÑÐ° ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¾Ð±ÑÐ»ÑÐ¶Ð¸Ð²Ð°Ð½Ð¸Ñ Ð¸ ÐµÐµ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð½Ð° ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ðµ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ (Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐÐ "ÐÐÐ¡Ð¡Ð-Ð")
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ¾Ð»ÑÐ½ÐºÐ¸Ð½Ð°, ÐÐ»ÑÐ³Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: ÑÐµÐ½ÑÑ ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¾Ð±ÑÐ»ÑÐ¶Ð¸Ð²Ð°Ð½Ð¸Ñ
Ð°Ð½Ð°Ð»Ð¸Ð· ÑÑÐ½ÐºÐ°
Ð´Ð¸ÑÐºÐ¾Ð½ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð¸Ð½Ð²ÐµÑÑÐ¸ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð¿ÑÐ¾ÐµÐºÑÑ

description: Ð¦ÐµÐ»Ñ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÐµÑ ÑÐ¾Ð±Ð¾Ð¹ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÑ Ð¸ Ð²ÑÐ±Ð¾Ñ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ Ð¸Ð½Ð²ÐµÑÑÐ¸ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ° Ð¾ÑÐºÑÑÑÐ¸Ñ ÑÐµÐ½ÑÑÐ° ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¾Ð±ÑÐ»ÑÐ¶Ð¸Ð²Ð°Ð½Ð¸Ñ. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÑÐ½ÐºÐ° Ð¸ Ð²Ð½ÑÑÑÐµÐ½Ð½ÐµÐ¹ ÑÑÐµÐ´Ñ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÐ¾Ð² Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð°. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð¼ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÑÐ°Ð»Ð° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÑÑÐ°ÑÐµÐ³Ð¸Ð¸ ÑÐµÐ³Ð¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ.
Pulsed Nuclear Pumping and Spin Diffusion in a Single Charged Quantum Dot
Creators: name: Ladd, Thaddeus D.
name: Press, David
name: De Greve, Kristiaan
name: McMahon, Peter L.
name: Friess, Benedikt
name: Schneider, Christian
name: Kamp, Martin
name: Hoefling, Sven
name: Forchel, Alfred
name: Yamamoto, Yoshihisa
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the observation of a feedback process between the nuclear spins in a single charged quantum dot and its trion transition, driven by a periodic sequence of optical pulses. The pulse sequence intersperses off-resonant ultrafast pulses for coherent electron-spin rotation and resonant narrow-band optical pumping. The feedback manifests as a hysteretic triangle-like pattern in the free-induction-decay of the single spin. We present a simple, quasi-analytic numerical model to describe this observation, indicating that the feedback process results from the countering effects of optical nuclear pumping and nuclear spin-diffusion inside the quantum dot. This effect allows dynamic tuning of the electron Larmor frequency to a value determined by the pulse timing, potentially allowing more complex coherent control operations.
description: 4 pages, 3 figures
title: Ð¡Ð¾Ð·Ð´Ð°Ð½Ð¸Ðµ ÑÐ´Ð°Ð»ÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐµÐ¿Ð¾Ð·Ð¸ÑÐ¾ÑÐ¸Ñ ÑÑ ÐµÐ¼ Ð±Ð°Ð· Ð´Ð°Ð½Ð½ÑÑ Ð¡Ð£ÐÐ PostgreSQL Ð¸ ÐºÐ»Ð¸ÐµÐ½ÑÐ° Ð´Ð»Ñ Ð»Ð¾ÐºÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ ÑÑ ÐµÐ¼Ð°Ð¼Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
Creators: name: Ð¨Ð°Ñ, Ð®Ð»Ð¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: Ð±Ð°Ð·Ñ Ð´Ð°Ð½Ð½ÑÑ
postgresql
ÑÑÐ±Ð´
docker

description: Ð ÑÐ¾Ð´Ðµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð¾ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ñ ÑÐ¸ÑÑÐµÐ¼ Ð´Ð»Ñ Ð²ÑÐ³ÑÑÐ·ÐºÐ¸ Ð¸ ÑÐ°Ð·Ð²ÐµÑÑÑÐ²Ð°Ð½Ð¸Ñ Ð´Ð°Ð½Ð½ÑÑ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð½ÑÑ Ð¡Ð£ÐÐ. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÐ¾Ð±ÑÐ°Ð½Ð½Ð¾Ð¹ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð±ÑÐ»Ð° ÑÐ¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð° Ð¸ ÑÐµÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð° ÑÐ¸ÑÑÐµÐ¼Ð°, Ð¾ÑÑÑÐµÑÑÐ²Ð»ÑÑÑÐ°Ñ Ð·Ð°Ð³ÑÑÐ·ÐºÑ Ð¸ ÑÐ°Ð·Ð²ÐµÑÑÑÐ²Ð°Ð½Ð¸Ðµ Ð´Ð°Ð½Ð½ÑÑ Ð¸Ð· ÑÐµÐ¿Ð¾Ð·Ð¸ÑÐ¾ÑÐ¸Ñ SQL-ÑÐºÑÐ¸Ð¿ÑÐ¾Ð² Ð¸ Ð½Ð° Ð½ÐµÐ³Ð¾.
ÐÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÑÐ¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¿ÑÐ¾Ð´ÐµÐ»Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ´ÐµÐ»Ð°Ð½Ñ Ð²ÑÐ²Ð¾Ð´Ñ Ð¸ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¿ÑÑÐ¸ Ð´Ð°Ð»ÑÐ½ÐµÐ¹ÑÐµÐ³Ð¾ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¸ÑÑÐµÐ¼Ñ.
Climate Change Modelling at Reduced Float Precision with Stochastic Rounding
Creators: name: Kimpson, Tom
name: Paxton, E. Adam
name: Chantry, Matthew
name: Palmer, Tim
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Reduced precision floating point arithmetic is now routinely deployed in numerical weather forecasting over short timescales. However the applicability of these reduced precision techniques to longer timescale climate simulations - especially those which seek to describe a dynamical, changing climate - remains unclear. We investigate this question by deploying a global atmospheric, coarse resolution model known as SPEEDY to simulate a changing climate system subject to increased $\text{CO}_2$ concentrations, over a 100 year timescale. Whilst double precision is typically the operational standard for climate modelling, we find that reduced precision solutions (Float32, Float16) are sufficiently accurate. Rounding the finite precision floats stochastically, rather than using the more common ``round-to-nearest" technique, notably improves the performance of the reduced precision solutions. Over 100 years the mean bias error (MBE) in the global mean surface temperature (precipitation) relative to the double precision solution is $+2 \times 10^{-4}$K ($-8 \times 10^{-5}$ mm/6hr) at single precision and $-3.5\times 10^{-2}$ K($-1 \times 10^{-2}$ mm/6hr) at half precision, whilst the inclusion of stochastic rounding reduced the half precision error to +1.8 $\times 10^{-2}$ K ($-8 \times10^{-4}$ mm/6hr). By examining the resultant climatic distributions that arise after 100 years, the difference in the expected value of the global surface temperature, relative to the double precision solution is $\leq 5 \times 10^{-3}$ K and for precipitation $8 \times 10^{-4}$ mm/6h when numerically integrating at half precision with stochastic rounding. Areas of the model which notably improve due to the inclusion of stochastic over deterministic rounding are also explored and discussed. [abridged]
description: 13 pages, 9 figures. Submitted to QJRMS. Abstract abridged to meet arxiv requirements
Lopsided optical diffraction in loop electromagnetically induced grating
Creators: name: Huo, Da
name: Hua, Shuo
name: Tian, Xue-Dong
name: Liu, Yi-Mou
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a theoretical scheme in a cold Rubidium-87 ($^{87}$Rb) atomic ensemble with a non-Hermitian optical structure, in which a lopsided optical diffraction grating can be realized just with the combination of single spatially periodic modulation and loop-phase.~Parity-time ($\mathcal{PT}$) symmetric and parity-time antisymmetric ($\mathcal{APT}$) modulation can be switched by adjusting different relative phases of the applied beams. Both $\mathcal{PT}$ symmetry and $\mathcal{PT}$ antisymmetry in our system are robust to the amplitudes of coupling fields, which allows optical response to be modulated precisely without symmetry breaking. Our scheme shows some nontrivial optical properties, such as lopsided diffraction, single-order diffraction, asymmetric Dammam-like diffraction, etc. Our work will benefit the development of versatile non-Hermitian/asymmetric optical devices.
On multiple scatterings of mesons in hot and cold QCD matter
Creators: name: Dominguez, Fabio
name: Marquet, Cyrille
name: Wu, Bin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the propagation of a color singlet q\bar{q} pair undergoing multiple scatterings in hot and cold QCD matter. The interaction of the dipole with the nucleus or plasma is described with the McLerran-Venugopalan and Gyulassy-Wang models respectively. We find identical results when expressed in terms of the saturation momentum of either the nucleus or the plasma. We compare two kinds of multiple scatterings, elastic and inelastic with respect to the target. When allowing the target to scatter inelastically, the difference with the elastic case is suppressed by a 1/N^2_c factor. We also discuss some implications of our results in the following situations: the survival probability of quarkonia in a hot medium, the production of high-p_T heavy mesons in nucleus-nucleus collisions, and the production of vector mesons in deep inelastic scattering off nuclei.
description: 27 pages, 7 figures, discussions improved, references added, to be published in NPA
Impact and Activity Report, 2023-2024 : Scholarly Communications & Copyright
Creators: name: University Of British Columbia. Scholarly Communications And Copyright Office
Publisher: name: The University of British Columbia
Year: 2024

description: UBC Library’s Scholarly Communications & Copyright Office (SCCO) supports the UBC community in applying the University’s copyright guidelines and navigating new developments in scholarly publishing. To this end, the SCCO provides a range of services to support UBC faculty, staff and students in the preparation of their course materials, presentations, and publications. These are the yearly reports developed by the SCCO highlighting specific activities.
On the stunning abundance of super-early, massive galaxies revealed by JWST
Creators: name: Ferrara, A.
name: Pallottini, A.
name: Dayal, P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The earliest JWST observations have revealed an unexpected abundance of super-early ($z>10$), massive ($M_*\approx 10^9\, M_\odot$) galaxies at the bright-end ($M_{\rm UV}\approx -21$) of the ultraviolet luminosity function (UV LF). We present a minimal physical model that explains the observed galaxy abundance at $z=10-14$. The model primarily combines (a) the halo mass function, with (b) an obscured star formation fraction prescription that is consistent with findings of the ALMA REBELS dusty galaxy survey. It has been successfully tested on well-known UV LFs up to $z=7$. The weak evolution from $z=7$ to $z\approx 14$ of the LF bright-end arises from a conspiracy between a decreasing dust attenuation, making galaxies brighter, that almost exactly compensates for the increasing shortage of their host halos. The model also predicts that galaxies at $z > 11$ should contain negligible amounts of dust. We speculate that dust could have been efficiently ejected during the very first phases of galaxy build-up.
description: 6 pages, 4 figures. Analysis of early release JWST data. Comments welcome
title: Ð¡Ð¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð½Ð°Ð»Ð¾Ð³Ð¾Ð²Ð¾Ð³Ð¾ ÑÑÐµÑÐ° Ð² Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸, Ð·Ð°Ð½Ð¸Ð¼Ð°ÑÑÐµÐ¹ÑÑ Ð¿ÐµÑÐµÑÐ°Ð±Ð¾ÑÐºÐ¾Ð¹ Ð´ÑÐµÐ²ÐµÑÐ¸Ð½Ñ (Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐÐÐ Â«Ð¡ÐµÑÐ»ÐµÑÂ»)
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ°Ð²Ð»Ð¾Ð², ÐÐ¸ÑÐ°Ð¸Ð»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2016
Subjects: Ð½Ð°Ð»Ð¾Ð³Ð¾Ð²ÑÐ¹ ÑÑÐµÑ
ÑÐ°ÑÑÐµÑ Ð½Ð°Ð»Ð¾Ð³Ð° Ð½Ð° Ð¿ÑÐ¸Ð±ÑÐ»Ñ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¹
ÑÑ ÐµÐ¼Ð° Ð±ÑÑ Ð³Ð°Ð»ÑÐµÑÑÐºÐ¾Ð³Ð¾ ÑÑÐµÑÐ°
ÑÑ ÐµÐ¼Ð° Ð½Ð°Ð»Ð¾Ð³Ð¾Ð²Ð¾Ð³Ð¾ ÑÑÐµÑÐ°
Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ñ Ð½Ð°Ð»Ð¾Ð³Ð¾Ð²Ð¾Ð³Ð¾ ÑÑÐµÑÐ°
tax accounting
calculation of tax on profit of organizations
scheme accounting
the scheme of tax accounting
automation of tax accounting

description: Ð Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¾Ð¿Ð¸ÑÐ°Ð½Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ ÐÐÐ Â«Ð¡ÐµÑÐ»ÐµÑÂ», ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ñ Ð¸ ÑÐ¾Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ñ Ñ Ð±Ð»Ð¸Ð¶Ð°Ð¹ÑÐ¸Ð¼ ÐºÐ¾Ð½ÐºÑÑÐµÐ½ÑÐ¾Ð¼ ÑÐµÑÐ½Ð¸ÐºÐ¾-ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ðµ, ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²ÑÐµ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸. ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ñ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ð½ÑÐµ ÑÑÐ°ÑÑÐºÐ¸ ÑÑÐµÑÐ°, Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ñ Ð¿Ð¾ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð°Ð»Ð¾Ð³Ð¾Ð²Ð¾Ð³Ð¾ Ð¸ Ð±ÑÑÐ³Ð°Ð»ÑÐµÑÑÐºÐ¾Ð³Ð¾ ÑÑÐµÑÐ°.
description: The bachelor work describes the characteristics of "Setles" LLC, calculated and compared with the nearest competitor feasibility, financial performance as well as performance indicators. Described the technical aspects of accounting and taxation, ways to automate the relevant accounting operations.
Theory of the microwave-induced photocurrent and photovoltage magnetooscillations in a spatially non-uniform 2D electron gas
Creators: name: Dmitriev, I. A.
name: Dorozhkin, S. I.
name: Mirlin, A. D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Recent experiment [S.I. Dorozhkin et al., Phys. Rev. Lett. 102, 036602 (2009)] on quantum Hall structures with strongly asymmetric contact configuration discovered microwave-induced photocurrent and photovoltage magnetooscillations in the absence of dc driving. We show that in an irradiated sample the Landau quantization leads to violation of the Einstein relation between the dc conductivity and diffusion coefficient. Then, in the presence of a built-in electric field in a sample, the microwave illumination causes photo-galvanic signals which oscillate as a function of magnetic field with the period determined by the ratio of the microwave frequency to the cyclotron frequency, as observed in the experiment.
description: 11 pages, 3 figures. v2: minor changes, published version
A Generalized Scalar Potential Integral Equation Formulation for the DC Analysis of Conductors
Creators: name: Sharma, Shashwat
name: Triverio, Piero
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: The electrostatic modeling of conductors is a fundamental challenge in various applications, including the prediction of parasitic effects in electrical interconnects, the design of biasing networks, and the modeling of biological, microelectromechanical, and sensing systems. The boundary element method (BEM) can be an effective simulation tool for these problems because it allows modeling three-dimensional objects with only a surface mesh. However, existing BEM formulations can be restrictive because they make assumptions specific to particular applications. For example, capacitance extraction formulations usually assume a constant electric scalar potential on the surface of each conductor and cannot be used to model a flowing current, nor to extract the resistance. When modeling steady currents, many existing techniques do not address mathematical challenges such as the null space associated with the operators representing the internal region of a conductor. We propose a more general BEM framework based on the electric scalar potential for modeling conductive objects in various scenarios in a unified manner. Restrictive application-specific assumptions are not made, and the aforementioned operator null space is handled in an intuitive and rigorous manner. Numerical examples drawn from diverse applications confirm the accuracy and generality of the proposed method.
description: 12 pages, 13 figures. Submitted to the IEEE Transactions on Antennas and Propagation
title: ÐÐ±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÐÐ­Ð¡ Ð½Ð° Ñ. ÐÐ°Ð²Ð°Ð²Ð»Ñ ÐÑÑÑÑÐ¸Ð½ÑÐºÐ¾Ð³Ð¾ ÑÐ°Ð¹Ð¾Ð½Ð° ÐÐ°Ð¼ÑÐ°ÑÑÐºÐ¾Ð³Ð¾ ÐºÑÐ°Ñ
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ°Ð²ÑÐ¸Ð»Ð¾Ð², ÐÐ°Ð²ÐµÐ»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: Ð³Ð¸Ð´ÑÐ¾ÑÐ»ÐµÐºÑÑÐ¾ÑÑÐ°Ð½ÑÐ¸Ñ
Ð²Ð¾Ð´Ð½Ð¾-ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð±Ð°Ð»Ð°Ð½Ñ
Ð¾Ð±ÑÑÐ¼ Ð¿Ð»Ð¾ÑÐ¸Ð½Ñ
ÑÑÐ°Ð½ÑÐ¸Ð¾Ð½Ð½ÑÐ¹ ÑÐ·ÐµÐ»
Ð¼Ð°Ð»Ð¾Ð²Ð¾Ð´Ð½ÑÐ¹ Ð¸ ÑÑÐµÐ´Ð½Ð¸Ð¹ Ð¿Ð¾ Ð²Ð¾Ð´Ð½Ð¾ÑÑÐ¸ Ð³Ð¾Ð´

description: ÐÑÐ¿ÑÑÐºÐ½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°, Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð½Ð°Ñ Ð¿Ð¾Ð´ ÑÑÐºÐ¾Ð²Ð¾Ð´ÑÑÐ²Ð¾Ð¼ Ð´Ð¾ÑÐµÐ½ÑÐ°, Ðº. Ñ. Ð½. ÐÐ°Ð½ÑÐ¸Ð»Ð¾Ð²Ð° Ð.Ð., ÑÐ¾Ð´ÐµÑÐ¶Ð¸Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÑÐ²ÐµÐ´ÐµÐ½Ð¸Ñ Ð¾Ð± Ð¸Ð½Ð¶ÐµÐ½ÐµÑÐ½ÑÑ ÑÐ¸ÑÑÐµÐ¼Ð°Ñ Ð¸ ÑÐ¾Ð¾ÑÑÐ¶ÐµÐ½Ð¸ÑÑ, Ð¸Ð· ÐºÐ¾ÑÐ¾ÑÑÑ Ð±ÑÐ´ÐµÑ ÑÐ¾ÑÑÐ¾ÑÑÑ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑ ÐÐ­Ð¡. Ð Ð´Ð¸Ð¿Ð»Ð¾Ð¼Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð±ÑÐ»Ð¸ ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ° ÐÐ­Ð¡ Ð½Ð° Ñ. ÐÐ°Ð²Ð°Ð²Ð»Ñ, Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑÑÐ¸Ðµ Ð¿Ð¾Ð»Ð½Ð¾ÑÑÑÑ Ð·Ð°Ð¼ÐµÑÑÐ¸ÑÑ Ð´Ð¸Ð·ÐµÐ»ÑÐ½ÑÑ Ð²ÑÑÐ°Ð±Ð¾ÑÐºÑ ÐÐ±ÑÐµÐ´Ð¸Ð½ÑÐ½Ð½Ð¾Ð³Ð¾ ÑÐ½ÐµÑÐ³Ð¾ÑÐ·Ð»Ð° Ð½Ð° ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ðµ Ð¾Ñ ÐÐ­Ð¡. ÐÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ñ Ð¿ÑÐµÐ´ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÑÑ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ðµ Ð¾Ð±ÑÑÐ¼Ð° Ð¿Ð»Ð¾ÑÐ¸Ð½Ñ, ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð¾ Ð´Ð¾Ð¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÐ½Ð¾ Ð¿ÑÐ¸Ð¿Ð»Ð¾ÑÐ¸Ð½Ð½Ð¾Ð¹ Ð¼Ð¸ÐºÑÐ¾ÐÐ­Ð¡, Ð¼Ð¾Ð½ÑÐ°Ð¶ Ð´Ð¾Ð¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð³Ð¸Ð´ÑÐ¾Ð°Ð³ÑÐµÐ³Ð°ÑÐ° Ð¾ÑÐ½Ð¾Ð²Ð½Ð¾Ð¹ ÐÐ­Ð¡.
Nuclear forces on the lattice
Creators: name: Beane, Silas
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Recent studies by the NPLQCD collaboration of hadronic interactions using lattice QCD are reviewed, with an emphasis on a recent calculation of meson-baryon scattering lengths. Ongoing high-statistics calculations of baryon interactions are also reviewed. In particular, new insights into the signal/noise problems that plague correlation functions involving baryons are discussed.
description: 12 pages, 12 figures, Talk given at 6th International Workshop on Chiral Dynamics, Bern, Switzerland, 6-10 Jul 2009
A direct comparison of CVD-grown and exfoliated MoS2 using optical spectroscopy
Creators: name: Plechinger, Gerd
name: Mann, J.
name: Preciado, E.
name: Barroso, D.
name: Nguyen, A.
name: Eroms, Jonathan
name: Schueller, Christian
name: Bartels, Ludwig
name: Korn, Tobias
Publisher: name: Universität Regensburg
Year: 2014
Subjects: subject: MoS2, Raman spectroscopy, photoluminescence, excitons
subject: 530 Physik
subject: 81.15.Gh 63.20.D- 71.35.Cc 78.55.Hx 62.20.-x 71.20.Nr

description: MoS2 is a highly interesting material, which exhibits a crossover from an indirect band gap in the bulk crystal to a direct gap for single layers. Here, we perform a direct comparison between large-area MoS2 films grown by chemical vapor deposition (CVD) and MoS2 flakes prepared by mechanical exfoliation from mineral bulk crystal. Raman spectroscopy measurements show differences between the in-plane and out-of-plane phonon mode positions in CVD-grown and exfoliated MoS2. Photoluminescence (PL) mapping reveals large regions in the CVD-grown films that emit strong PL at room-temperature, and low-temperature PL scans demonstrate a large spectral shift of the A exciton emission as a function of position. Polarization-resolved PL measurements under near-resonant excitation conditions show a strong circular polarization of the PL, corresponding to a valley polarization
Correlation Measurement of Squeezed Light
Creators: name: Krivitsky, Leonid A.
name: Andersen, Ulrik L.
name: Dong, Ruifang
name: Huck, Alexander
name: Wittmann, Christoffer
name: Leuchs, Gerd
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the implementation of a correlation measurement technique for the characterization of squeezed light which is nearly free of electronic noise. With two different sources of squeezed light, we show that the sign of the covariance coefficient, revealed from the time resolved correlation data, is witnessing the presence of squeezing in the system. Furthermore, we estimate the degree of squeezing using the correlation method and compare it to the standard homodyne measurement scheme. We show that the role of electronic detector noise is minimized using the correlation approach as opposed to homodyning where it often becomes a crucial issue.
Theory of the force of Friction Acting on Water Chains Flowing through Carbon Nanotubes
Creators: name: Sokoloff, J. B.
name: Lau, A. W. C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A simple model for the friction experienced by the one dimensional water chains that flow through subnanometer diameter carbon nanotubes is studied. The model is based on a lowest order perturbation theory treatment of the friction experienced by the water chains due to the excitation of phonon and electron excitations in both the nanotube and the water chain, as a result of the motion of the chain. On the basis of this model, we are able to demonstrate that the observed flow velocities of water chains through carbon nanotubes of the order of cm/s can be accounted for, if the nanotube is metallic. If it is insulating, however, our calculations imply that the flow velocity of the water could be much larger for the pressure gradient in experimental studies of water flow through subnanometer diameter nanotubes.
description: 24 pages, 5 figures
title: Ð­ÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ðµ Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÑÑÐ´Ð¾Ð²ÑÑ ÑÐµÑÑÑÑÐ¾Ð² (Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐÐÐ Â«Ð¡Ð¾Ð²ÐÐ¾Ð¼ÐÐ°Ð½ÐºÂ»)
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ°ÑÐ°ÑÐ¾Ð²Ð°, ÐÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2017
Subjects: Ð°Ð½Ð°Ð»Ð¸Ð· ÑÑÑÐ´Ð¾Ð²ÑÑ ÑÐµÑÑÑÑÐ¾Ð²
Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð³Ð¾ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ
Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐµÐ¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¾ÑÐ´ÐµÐ»Ð¾Ð² Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ
Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐµÐºÑÑÐµÑÑÐ¸ ÐºÐ°Ð´ÑÐ¾Ð²
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description: Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¸ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð°ÑÐ¿ÐµÐºÑÑ Ð¿Ð¾ Ð²Ð¾Ð¿ÑÐ¾ÑÐ°Ð¼ ÑÐ²ÑÐ·Ð°Ð½Ð½ÑÐ¼ Ñ ÑÑÑÐ´Ð¾Ð²ÑÐ¼Ð¸ ÑÐµÑÑÑÑÐ°Ð¼Ð¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ. ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð½Ð¾ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ðµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ ÐÐÐ "Ð¡Ð¾Ð²ÐºÐ¾Ð¼Ð±Ð°Ð½Ðº", Ð²ÑÑÐ²Ð»ÐµÐ½Ñ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ Ð² ÑÐ°Ð±Ð¾ÑÐµ Ñ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð¾Ð¼. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ° ÑÐ»ÑÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÐµÐ¹ Ð¿ÑÐ¸ Ð¿Ð¾Ð¼Ð¾ÑÐ¸ ÑÐµÐ¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¾ÑÐ´ÐµÐ»Ð¾Ð² Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ.
title: ÐÐ¾Ð²ÑÑÐµÐ½Ð¸Ðµ ÐºÐ°ÑÐµÑÑÐ²Ð° ÑÐ¾ÑÐ³Ð¾Ð²Ð¾Ð³Ð¾ Ð¾Ð±ÑÐ»ÑÐ¶Ð¸Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾ÑÑÐµÐ±Ð¸ÑÐµÐ»ÐµÐ¹
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: ÐÐ°Ð»ÑÐ½Ð¸ÑÐµÐ½ÐºÐ¾, ÐÐºÐ°ÑÐµÑÐ¸Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2016
Subjects: ÐºÐ°ÑÐµÑÑÐ²Ð¾ Ð¾Ð±ÑÐ»ÑÐ¶Ð¸Ð²Ð°Ð½Ð¸Ñ
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quality of service
consumer
customer loyalty

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð±ÑÐ»Ð¸ Ð¸Ð·ÑÑÐµÐ½Ñ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸ Ð¾Ð±ÑÐ»ÑÐ¶Ð¸Ð²Ð°Ð½Ð¸Ñ, Ð²Ð»Ð¸ÑÑÑÐ¸Ðµ Ð½Ð° Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ðµ ÐºÐ°ÑÐµÑÑÐ²Ð° Ð¾Ð±ÑÐ»ÑÐ¶Ð¸Ð²Ð°Ð½Ð¸Ñ ÐºÐ¾ÑÐ¾ÑÑÐµ Ð´Ð¾Ð»Ð¶Ð½Ñ Ð±ÑÑÑ Ð¾ÑÐ¸ÐµÐ½ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ñ, Ð² Ð¿ÐµÑÐ²ÑÑ Ð¾ÑÐµÑÐµÐ´Ñ, Ð½Ð° ÑÐ°Ð¼Ð¾Ð³Ð¾ Ð¿Ð¾ÑÑÐµÐ±Ð¸ÑÐµÐ»Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð½Ð° Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ðµ Ð¿Ð¾ÐºÑÐ¿Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð¹ Ð»Ð¾ÑÐ»ÑÐ½Ð¾ÑÑÐ¸. ÐÐ½Ð°Ð»Ð¸Ð· ÑÐ¾ÑÐ³Ð¾Ð²Ð¾Ð³Ð¾ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ Ð¿Ð¾Ð·Ð²Ð¾Ð»Ð¸Ð» Ð²ÑÑÐ²Ð¸ÑÑ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ Ð² ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÐµÑÑÐ¾Ð½Ð°Ð»Ð°, ÐºÐ¾ÑÐ¾ÑÑÐµ Ð±ÑÐ»Ð¸ ÑÐµÑÐµÐ½Ñ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹, Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð½ÑÑ Ð½Ð° Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ðµ ÐºÐ°ÑÐµÑÑÐ²Ð° ÑÐ¾ÑÐ³Ð¾Ð²Ð¾Ð³Ð¾ Ð¾Ð±ÑÐ»ÑÐ¶Ð¸Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾ÑÑÐµÐ±Ð¸ÑÐµÐ»ÐµÐ¹.
description: In this final qualifying work, we studied the maintenance records that affect the improvement of service quality which should be focused, primarily, on the consumer himself, but also to increase customer loyalty. Analysis of trade has enabled the company to identify problems in the work of the staff, which were resolved by the development of activities aimed at improving the quality of customer service.
Gyrokinetic simulations of plasma turbulence in a Z-pinch using a moment based approach and advanced collision operators
Creators: name: Hoffmann, A. C. D.
name: Frei, B. J.
name: Ricci, P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The first nonlinear gyrokinetic simulations obtained using a moment approach based on the Hermite-Laguerre decomposition of the distribution function are presented, implementing advanced models for the collision operator. Turbulence in a \modif{two-dimensional} Z-pinch is considered within a flux tube configuration. In the collisionless regime, our gyromoment approach shows very good agreement with nonlinear simulations carried out with the continuum gyrokinetic code GENE, even with fewer gyromoments than required for the convergence of the linear growth rate. By using advanced linear collision operators, the role of collisions in setting the level of turbulent transport is then analyzed. The choice of collision operator model is shown to have a crucial impact when turbulence is quenched by the presence of zonal flows. The convergence properties of the gyromoment approach improve when collisions are included.
description: 28 pages, 14 figures
Duality between QCD Perturbative Series and Power Corrections
Creators: name: Narison, S.
name: Zakharov, V. I.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We elaborate on the relation between perturbative and power-like corrections to short-distance sensitive QCD observables. We confront theoretical expectations with explicit perturbative calculations existing in literature. As is expected, the quadratic correction is dual to a long perturbative series and one should use one of them but not both. However, this might be true only for very long perturbative series, with number of terms needed in most cases exceeding the number of terms available. What has not been foreseen, the quartic corrections might also be dual to the perturbative series. If confirmed, this would imply a crucial modification of the dogma. We confront this quadratic correction against existing phenomenology (QCD (spectral) sum rules scales, determinations of light quark masses and of α_s from τ-decay). We find no contradiction and (to some extent) better agreement with the data and with recent lattice calculations.
description: shorten version to appear in PLB
UBC Library Open Education Impact & Activity Report, 2023/2024
Creators: name: University Of British Columbia. Scholarly Communications And Copyright Office
Publisher: name: The University of British Columbia
Year: 2024

description: UBC Library’s Open Education services seek to support the UBC community in finding, adapting, and creating high-quality open educational resources, as well as planning and implementing innovative Open Education projects and Open Practices. This report highlights UBC Vancouver and Okanagan libraries combined impact on open educational practices at UBC for 2023/2024.
A Probablistic Origin for a New Class of Bivariate Polynomials
Creators: name: Hoare, Michael R.
name: Rahman, Mizan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: We present here a probabilistic approach to the generation of new polynomials in two discrete variables. This extends our earlier work on the 'classical' orthogonal polynomials in a previously unexplored direction, resulting in the discovery of an exactly soluble eigenvalue problem corresponding to a bivariate Markov chain with a transition kernel formed by a convolution of simple binomial and trinomial distributions. The solution of the relevant eigenfunction problem, giving the spectral resolution of the kernel, leads to what we believe to be a new class of orthogonal polynomials in two discrete variables. Possibilities for the extension of this approach are discussed.
description: This is a contribution to the Special Issue on Dunkl Operators and Related Topics, published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Random Network Behaviour of Protein Structures
Creators: name: V., Brinda K.
name: Vishveshwara, Saraswathi
name: Vishveshwara, Smitha
Publisher: name: arXiv
Year: 2009
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Geometric and structural constraints greatly restrict the selection of folds adapted by protein backbones, and yet, folded proteins show an astounding diversity in functionality. For structure to have any bearing on function, it is thus imperative that, apart from the protein backbone, other tunable degrees of freedom be accountable. Here, we focus on side-chain interactions, which non-covalently link amino acids in folded proteins to form a network structure. At a coarse-grained level, we show that the network conforms remarkably well to realizations of random graphs and displays associated percolation behavior. Thus, within the rigid framework of the protein backbone that restricts the structure space, the side-chain interactions exhibit an element of randomness, which account for the functional flexibility and diversity shown by proteins. However, at a finer level, the network exhibits deviations from these random graphs which, as we demonstrate for a few specific examples, reflect the intrinsic uniqueness in the structure and stability, and perhaps specificity in the functioning of biological proteins.
description: Expanded version available in Molecular BioSystems
Direct Observation of Magnon Fractionalization in the Quantum Spin Ladder
Creators: name: Thielemann, B.
name: Rüegg, Ch.
name: Rønnow, H. M.
name: Läuchli, A. M.
name: Caux, J. -S.
name: Normand, B.
name: Biner, D.
name: Krämer, K. W.
name: Güdel, H. -U.
name: Stahn, J.
name: Habicht, K.
name: Kiefer, K.
name: Boehm, M.
name: McMorrow, D. F.
name: Mesot, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We measure by inelastic neutron scattering the spin excitation spectra as a function of applied magnetic field in the quantum spin-ladder material (C5H12N)2CuBr4. Discrete magnon modes at low fields in the quantum disordered phase and at high fields in the saturated phase contrast sharply with a spinon continuum at intermediate fields characteristic of the Luttinger-liquid phase. By tuning the magnetic field, we drive the fractionalization of magnons into spinons and, in this deconfined regime, observe both commensurate and incommensurate continua.
description: 4 pages, 4 figures