cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Topology-aware adaptive inspection for fraud in I4.0 supply chains
Creators: name: WELSH, THOMAS
name: Alrimawi, Faeq
name: Farahani, Ali
name: HASSETT, DIANE
name: Zisman, Andrea
name: NUSEIBEH, BASHAR
Publisher: name: University of Limerick
Year: 2022

description: Supply chain fraud involving counterfeit or adulterated products presents threats to human health and safety. Quality Inspection is a key fraud mitigation tool where inspection planning involves allocating inspection resources across geographically dispersed assets considering both the cost and value of the inspection. I4.0 environments pose further challenges as their heterogeneous and dynamic cyber-physical environment creates a large inspection resource allocation solution space, causing the corresponding analysis to be computationally complex. In this paper, we contribute to supporting optimal inspection decisions of dynamic cyber-physical supply chains through the use of structural representations - topologies of the supply chain, physical premises, and their production context. We present an approach for topology modelling of supply chains, and illustrate its use within an adaptive inspection approach, showing that structural information can reduce malicious process discovery times by up to 90%.
title: Denman Islander [June, 1990]
Creators: name: (:Unkn) Unknown
Publisher: name: Electronic version published by Vancouver Island University
Year: 1990
Subjects: subject: Newspapers and periodicals

description: June calendar -- Look what’s going on at the hall! -- Denman seniors -- Church news -- St. Saviour’s Anglican Church Denman Island -- Group art show -- “New work from Denman Island” -- Wanted: -- Change of pace / Joan -- Student employment -- Hornby Island summer gymnastics program -- Island Trust news -- Corner clayworks -- Children's summer program --Ratepayers and Residents Association -- Recycling news -- How we can do without household poisons -- And about the dogs… -- In a medical emergency: -- Canada world youth -- Thank you from the Denman Island Preschool -- Emergency call schedule -- Other happenings -- Classified
title: Denman Islander [July, 1990]
Creators: name: (:Unkn) Unknown
Publisher: name: Electronic version published by Vancouver Island University
Year: 1990
Subjects: subject: Newspapers and periodicals

description: July calendar -- Could one small community have so much to do? -- Denman seniors -- Church news -- St. Saviour’s Anglican Church Denman Island -- The mad cross island dash -- In a medical emergency: -- Island Trust news -- Squeaky clean -- Scuba diving anyone? -- Ratepayers and Residents Association -- Thank you -- Heron Rocks Friendship Centre July events -- Denman Family Fair 1990! (formerly farmer's market) -- How about a summer camp on Denman Island? -- Summer camp information slip -- Playground fund raiser -- Summer gymnastics program -- Garden news -- Home support notice -- Manchester Boy’s [Boys’] Choir -- Arts & education -- Denman Island summer activities for children -- Emergency call schedule -- Other happenings -- Classified
Evolution of shock instability in granular gases with viscoelastic collisions
Creators: name: Sirmas, Nick
name: Radulescu, Matei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Shocks in granular media have been shown to develop instabilities. We address the role that early stages of shock development have on this type of instability. We look at the evolution of shock waves driven by a piston in a dilute system of smooth inelastic disks, using both discrete-particle and continuum modelling. To mimic a realistic granular gas, viscoelastic collisions are approximated with an impact velocity threshold $u^*$ needed for inelastic collisions to occur. We show that behaviour of the shock evolution is dependent on the ratio of piston velocity to impact velocity threshold $u_p/u^*$, and the coefficient of restitution $\varepsilon$. For $u_p/u^*=2.0$, we recover shock evolution behaving similar to that observed in purely inelastic media. This is characterized by a short period where the shock front pulls towards the piston before attaining a developed structure. No pullback is seen for $u_p/u^*=1.0$. Results show the onset of instability for these stronger shocks during this evolving stage. These results suggest that the early stages of shock evolution play an important role in the shock instability.
description: 8 pages, prepared for the proceeding of the 29th International Symposium on Rarefied Gas Dynamics
title: Denman Islander [May, 1990]
Creators: name: (:Unkn) Unknown
Publisher: name: Electronic version published by Vancouver Island University
Year: 1990
Subjects: subject: Newspapers and periodicals

description: May calendar -- Community hall grant news -- Denman seniors -- What’s going on at the hall? -- Church news -- St. Saviour’s Anglican Church Denman Island -- Denman Island Community United Church -- Community hall janitorial position -- The urban - forest interface or How vulnerable is your home to forest fire? -- Situations increasing the likelihood of your home being destroyed by forest fire -- Some things you can do to prepare -- Some more notes from Denman Fire Dept. -- Change of pace / Joan -- In a medical emergency: -- Telephone directories -- Public service announcement -- Corner clayworks -- Farmer’s Market call for volunteers -- Applications invited for July 1st celebration -- Island Trust news -- What’s happening to the handymen? -- Seniors housing conference: a resounding success -- Emergency call schedule -- Other happenings -- Classified
Ring-exchange periodic Anderson model for 3He bilayers
Creators: name: Werner, Jan
name: Assaad, Fakher F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present numerical results of a model calculation for the 3He bilayer system, which captures the interplay between fast and slow dynamics of the different layers and incorporates an independent scale for the three body ring exchange. By means of Cluster-DMFT+CTQMC, we find remarkable similarities with the experiments: a suppression of the coherence temperature upon approaching the solidification point of the first layer accompanied by the onset of strong ferromagnetic correlations within the first layer. Based on the consistent results for different cluster sizes we conjecture a first-order transition cutting short the Kondo breakdown, which allows us to interpret the experimental observation of an intervening phase preempting the quantum critical point in terms of a phase separation.
description: 7 pages, 9 figures
The general relativistic equations of radiation hydrodynamics in the viscous limit
Creators: name: Coughlin, Eric R.
name: Begelman, Mitchell C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present an analysis of the general relativistic Boltzmann equation for radiation, appropriate to the case where particles and photons interact through Thomson scattering, and derive the radiation energy-momentum tensor in the diffusion limit, with viscous terms included. Contrary to relativistic generalizations of the viscous stress tensor that appear in the literature, we find that the stress tensor should contain a correction to the comoving energy density proportional to the divergence of the four-velocity, as well as a finite bulk viscosity. These modifications are consistent with the framework of radiation hydrodynamics in the limit of large optical depth, and do not depend on thermodynamic arguments such as the assignment of a temperature to the zeroth-order photon distribution. We perform a perturbation analysis on our equations and demonstrate that, as long as the wave numbers do not probe scales smaller than the mean free path of the radiation, the viscosity contributes only decaying, i.e., stable, corrections to the dispersion relations. The astrophysical applications of our equations, including jets launched from super-Eddington tidal disruption events and those from collapsars, are discussed and will be considered further in future papers.
description: 14 pages, Accepted for publication in ApJ; Minor typographical errors fixed from previous version
title: Brief von Laurence S. Moss an Kurt Rothschild
Creators: name: Moss, Laurence S.
Year: 2017

description: Beilage: Formular für das Verfassen von Buchrezensionen bei der Zeitschrift "Small Business Economics - An international Journal".
description: Typoskript mit Unterschrift, 2 Blätter
Transverse momentum resummation effects in W^+W^- measurements
Creators: name: Meade, Patrick
name: Ramani, Harikrishnan
name: Zeng, Mao
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The W^+W^- cross section has remained one of the most consistently discrepant channels compared to SM predictions at the LHC, measured by both ATLAS and CMS at 7 and 8 TeV. Developing a better modeling of this channel is crucial to understanding properties of the Higgs and potential new physics. In this paper we investigate the effects of NNLL transverse momentum resummation in measuring the W^+W^- cross section. In the formalism we employ, transverse momentum resummation does not change the total inclusive cross section, but gives a more accurate prediction for the p_T distribution of the diboson system. By re-weighting the p_T distribution of events produced by Monte Carlo generators, we find a systematic shift that decreases the experimental discrepancy with the SM prediction by approximately 3-7% depending on the MC generator and parton shower used. The primary effect comes from the jet veto cut used by both experiments. We comment on the connections to jet veto resummation, and other methods the experiments can use to test this effect. We also discuss the correlation of resummation effects in this channel with other diboson channels. Ultimately p_T resummation improves the agreement between the SM and experimental measurements for most generators, but does not account for the measured ~20% difference with the SM and further investigations into this channel are needed.
description: 21 pages, 9 figures, v2: minor changes/refs updated
title: Denman Islander [August, 1990]
Creators: name: (:Unkn) Unknown
Publisher: name: Electronic version published by Vancouver Island University
Year: 1990
Subjects: subject: Newspapers and periodicals

description: August calendar -- Mark these dates on your calendar! -- Denman seniors -- Church news -- St. Saviour’s Anglican Church Denman Island -- Denman family fair -- Summer art gallery at the Senior’s Centre -- Neighbourhood Watch program -- Recycling news -- Power play workshop -- More on avoiding household poison -- Ratepayers and Residents Association -- Rescue 53 -- Denman family fair 1990! (formerly farmer’s market) -- Septic tanks and absorption fields -- The Denman volunteer firefighters annual pancake breakfast was a huge success -- 1990 D.I.A.C.S. annual island artists’ group show Aug. 21 - Sept. 3 -- Island Trust news -- In concert -- Forestry principles for the Islands Trust area -- A possible policy position -- Crystal healing workshop / Arum Wayne -- Heron Rocks Friendship Centre August events -- Emergency call schedule -- Other happenings -- Classified
Extending the supernova Hubble diagram to z~1.5 with the Euclid space mission
Creators: name: Astier, P.
name: Balland, C.
name: Brescia, M.
name: Cappellaro, E.
name: Carlberg, R. G.
name: Cavuoti, S.
name: Della Valle, M.
name: Gangler, E.
name: Goobar, A.
name: Guy, J.
name: Hardin, D.
name: Hook, I. M.
name: Kessler, R.
name: Kim, A.
name: Linder, E.
name: Longo, G.
name: Maguire, K.
name: Mannucci, F.
name: Mattila, S.
name: Nichol, R.
name: Pain, R.
name: Regnault, N.
name: Spiro, S.
name: Sullivan, M.
name: Tao, C.
name: Turatto, M.
name: Wang, X. F.
name: Wood-Vasey, W. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We forecast dark energy constraints that could be obtained from a new large sample of Type Ia supernovae where those at high redshift are acquired with the Euclid space mission. We simulate a three-prong SN survey: a z<0.35 nearby sample (8000 SNe), a 0.2
description: 21 pages. Accepted for publication in A&A
title: Island Life No.19 [June 1, 1992]
Creators: name: (:Unkn) Unknown
Publisher: name: Electronic version published by Vancouver Island University
Year: 1992
Subjects: subject: Newspapers and periodicals

description: Who controls our island? / Anne de Cosson -- This last stand / Tim Wees -- Garden Club annual show -- Not here for the RCMP -- A lover of islands anticipates Denman and Hornby / Peter Grace -- Seniors / Diane Davis -- This emerald isle / Jane Masutani -- Book report / Hamish Tait -- Living things we love to hate / Des Kennedy -- Hall happenings / David Graham -- Exciting dance/concert to benefit Pancho & Sal / Hillel Wright -- Residents & Ratepayers news / Leslie Dunsmore -- Hippo news / Peter Walford -- More Denman history / Paul Bailey -- Video review / Wiley Moon --Library news / Diane Davis -- Planting flowers and pulling weeds -- Making ready for the annual garden tour / Sandy Kennedy -- Kelly’s Korner -- Economics report for 1998 -- United Church worship -- Thanks for the show -- Concluding the DIACS’ winter concert series -- Beer and wine competition results -- The issue is free speech -- This may be the last “Island Life” as a community newsletter / Tim Wees
Enhanced active swimming in viscoelastic fluids
Creators: name: Riley, Emily E.
name: Lauga, Eric
Publisher: name: arXiv
Year: 2014
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 92C05 (Primary) 76Z10, 76A05, 74F10 (Secondary)

description: Swimming microorganisms often self propel in fluids with complex rheology. While past theoretical work indicates that fluid viscoelasticity should hinder their locomotion, recent experiments on waving swimmers suggest a possible non-Newtonian enhancement of locomotion. We suggest a physical mechanism, based on fluid-structure interaction, leading to swimming in a viscoelastic fluid at a higher speed than in a Newtonian one. Using Taylor's two-dimensional swimming sheet model, we solve for the shape of an active swimmer as a balance between the external fluid stresses, the internal driving moments, and the passive elastic resistance. We show that this dynamic balance leads to a generic transition from hindered rigid swimming to enhanced flexible locomotion. The results are physically interpreted as due to a viscoelastic suction increasing the swimming amplitude in a non-Newtonian fluid and overcoming viscoelastic damping.
description: 7 pages, 3 figures
title: Island Life No.20 [July 1, 1992]
Creators: name: (:Unkn) Unknown
Publisher: name: Electronic version published by Vancouver Island University
Year: 1992
Subjects: subject: Newspapers and periodicals

description: “Optimistic !” says conservancy -- An update on the Lindsay-Dickson property / Anne de Cosson -- Denman’s web / Tim Wees -- Seniors / Diane Davis -- Resident & Ratepayers news / Leslie Dunsmore -- Hippo news / Peter Walford -- The changing seasons / Lee Andra Jacobs -- Video review / Wiley Moon -- Travelers’ notes from San Francisco -- As experienced by Kelly Swain, Zoa Scott and Dallas Stevenson -- Hall happenings / David Graham -- Community Club elections and enthusiasm / Kim Backs -- Deep Rhythm has a great show -- Kelly’s Korner -- Rollmops -- Flower show and tea -- Denman Island Garden Society -- United Church worship -- Denman history group / Paul Bailey -- Critter chatter / Jenny Balke
title: ÐÑÐ°Ð²Ð¸Ð»Ð° Ð¾ÑÐ¾ÑÐ¼Ð»ÐµÐ½Ð¸Ñ Ð²ÑÐ¿ÑÑÐºÐ½ÑÑ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½ÑÑ ÑÐ°Ð±Ð¾Ñ Ð¸ Ð¾ÑÑÑÑÐ¾Ð² Ð¿Ð¾ ÐÐÐ
title: ÑÑÐµÐ±Ð½Ð¾-Ð¼ÐµÑÐ¾Ð´Ð¸ÑÐµÑÐºÐ¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: Ð¡ÐµÑÐ¸ÐºÐ¾Ð²Ð°, ÐÐ»ÐµÐ½Ð°
name: ÐÐ¾Ð´ÐºÐ¾Ð»ÑÐ·Ð¸Ð½Ð°, ÐÑÐ´Ð¼Ð¸Ð»Ð°
name: Ð¡ÐµÑÐ¸ÐºÐ¾Ð², Ð¡ÐµÑÐ³ÐµÐ¹
name: ÐÐ°ÑÑÐ¸ÐµÐ², ÐÐ»ÐµÐºÑÐ°Ð½Ð´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: 2020
Subjects: Ð²ÑÐ¿ÑÑÐºÐ½ÑÐµ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐµ ÑÐ°Ð±Ð¾ÑÑ
Ð¾ÑÑÑÑÑ
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Ð¿ÑÐ°Ð²Ð¸Ð»Ð° Ð¾ÑÐ¾ÑÐ¼Ð»ÐµÐ½Ð¸Ñ

description: ÐÐµÑÐ¾Ð´Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐºÐ°Ð·Ð°Ð½Ð¸Ñ ÑÑÑÐ°Ð½Ð°Ð²Ð»Ð¸Ð²Ð°ÑÑ Ð¾Ð±ÑÐ¸Ðµ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ñ Ðº ÑÑÑÑÐºÑÑÑÐµ Ð¸ Ð¿ÑÐ°Ð²Ð¸Ð»Ð°Ð¼ Ð¾ÑÐ¾ÑÐ¼Ð»ÐµÐ½Ð¸Ñ Ð²ÑÐ¿ÑÑÐºÐ½ÑÑ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½ÑÑ ÑÐ°Ð±Ð¾Ñ (ÐÐÐ ) Ð¸ Ð¾ÑÑÑÑÐ¾Ð² Ð¿Ð¾ Ð½Ð°ÑÑÐ½Ð¾-Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÑÐºÐ¸Ð¼ ÑÐ°Ð±Ð¾ÑÐ°Ð¼ (ÐÐÐ ) Ð´Ð»Ñ Ð²ÑÐµÑ ÑÑÐ¾Ð²Ð½ÐµÐ¹ Ð²ÑÑÑÐµÐ³Ð¾ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ - Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ¸Ð°ÑÐ°, Ð¼Ð°Ð³Ð¸ÑÑÑÐ°ÑÑÑÑ. Ð Ð¼ÐµÑÐ¾Ð´Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐºÐ°Ð·Ð°Ð½Ð¸ÑÑ Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ñ Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ Ð¾ÑÐ¾ÑÐ¼Ð»ÐµÐ½Ð¸Ñ ÐÐÐ Ð² ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²Ð¸Ð¸ Ñ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸ÑÐ¼Ð¸ Ð´ÐµÐ¹ÑÑÐ²ÑÑÑÐ¸Ñ ÑÑÐ°Ð½Ð´Ð°ÑÑÐ¾Ð² Ð¿Ð¾ Ð¾ÑÐ¾ÑÐ¼Ð»ÐµÐ½Ð¸Ñ ÑÐµÐºÑÑÐ¾Ð²ÑÑ Ð¸ Ð³ÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ¾Ð². ÐÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸, Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ð½ÑÐµ Ð² Ð¼ÐµÑÐ¾Ð´Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐºÐ°Ð·Ð°Ð½Ð¸ÑÑ , Ð¼Ð¾Ð³ÑÑ Ð±ÑÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ñ Ð¿ÑÐ¸ Ð¾ÑÐ¾ÑÐ¼Ð»ÐµÐ½Ð¸Ð¸ Ð»ÑÐ±ÑÑ Ð²Ð¸Ð´Ð¾Ð² ÑÑÐµÐ±Ð½Ð¾Ð¹ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ°ÑÐ¸Ð¸, Ð²ÑÐ¿Ð¾Ð»Ð½ÑÐµÐ¼ÑÑ ÑÑÑÐ´ÐµÐ½ÑÐ°Ð¼Ð¸ Ð¿ÑÐ¸ Ð¾ÑÐ²Ð¾ÐµÐ½Ð¸Ð¸ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½ ÑÑÐµÐ±Ð½ÑÑ Ð¿Ð»Ð°Ð½Ð¾Ð² Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½ÑÑ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼ Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ¸Ð°ÑÐ°, Ð¼Ð°Ð³Ð¸ÑÑÑÐ°ÑÑÑÑ Ð¸ ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸ÑÐµÑÐ°. ÐÐµÑÐ¾Ð´Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐºÐ°Ð·Ð°Ð½Ð¸Ñ Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ñ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð², Ð° ÑÐ°ÐºÐ¶Ðµ Ð½Ð°ÑÑÐ½Ð¾-Ð¿ÐµÐ´Ð°Ð³Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ°Ð±Ð¾ÑÐ½Ð¸ÐºÐ¾Ð² ÐÐ¨ÐÐ¸Ð .
Anomalous diffusion and Griffiths effects near the many-body localization transition
Creators: name: Agarwal, Kartiek
name: Gopalakrishnan, Sarang
name: Knap, Michael
name: Mueller, Markus
name: Demler, Eugene
Publisher: name: arXiv
Year: 2014
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We explore the high-temperature dynamics of the disordered, one-dimensional XXZ model near the many-body localization (MBL) transition, focusing on the delocalized (i.e., "metallic") phase. In the vicinity of the transition, we find that this phase has the following properties: (i) Local magnetization fluctuations relax subdiffusively; (ii) the a.c. conductivity vanishes near zero frequency as a power law; (iii) the distribution of resistances becomes increasingly broad at low frequencies, approaching a power law in the zero-frequency limit. We argue that these effects can be understood in a unified way if the metallic phase near the MBL transition is a Griffiths phase. We establish scaling relations between the associated exponents, using exact linear-response arguments as well as a phenomenological resistor-capacitor model.
description: 5 pages, 3 figures + Supplemental Material
Photonic spin Hall effect for precision metrology
Creators: name: Zhou, Xinxing
name: Chen, Shizhen
name: Liu, Yachao
name: Luo, Hailu
name: Wen, Shuangchun
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The photonic spin Hall effect (SHE) is generally believed to be a result of an effective spin-orbit coupling, which describes the mutual influence of the spin (polarization) and the trajectory of the light beam. The photonic SHE holds great potential for precision metrology owing to the fact that the spin-dependent splitting in photonic SHE are sensitive to the physical parameter variations of different systems. Remarkably, using the weak measurements, this tiny spin-dependent shifts can be detected with the desirable accuracy so that the corresponding physical parameters can be determined. Here, we will review some of our works on using photonic SHE for precision metrology, such as measuring the thickness of nanometal film, identifying the graphene layers, detecting the strength of axion coupling in topological insulators, and determining the magneto-optical constant of magnetic film.
description: 10 pages, 6 figures. Invited contribution to the SPIE Optics+Photonics conference "Spintronics VII", held in San Diego, CA, August 17-21, 2014
Non-Markovianity through flow of information between a system and an environment
Creators: name: Haseli, S.
name: Karpat, G.
name: Salimi, S.
name: Khorashad, A. S.
name: Fanchini, F. F.
name: Çakmak, B.
name: Aguilar, G. H.
name: Walborn, S. P.
name: Ribeiro, P. H. Souto
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Exchange of information between a quantum system and its surrounding environment plays a fundamental role in the study of the dynamics of open quantum systems. Here we discuss the role of the information exchange in the non-Markovian behavior of dynamical quantum processes following the decoherence approach, where we consider a quantum system that is initially correlated with its measurement apparatus, which in turn interacts with the environment. We introduce a new way of looking at the information exchange between the system and environment using the quantum loss, which is shown to be closely related to the measure of non-Markovianity based on the quantum mutual information. We also extend the results of [Phys. Rev. Lett. 112, 210402 (2014)] by Fanchini et al. in several directions, providing a more detailed investigation of the use of the accessible information for quantifying the backflow of information from the environment to the system. Moreover, we reveal a clear conceptual relation between the entanglement and mutual information based measures of non-Markovianity in terms of the quantum loss and accessible information. We compare different ways of studying the information flow in two theoretical examples. We also present experimental results on the investigation of the quantum loss and accessible information for a two-level system undergoing a zero temperature amplitude damping process. We use an optical approach that allows full access to the state of the environment.
description: 11 pages, 7 figures
Radial Velocity Observations and Light Curve Noise Modeling Confirm That Kepler-91b is a Giant Planet Orbiting a Giant Star
Creators: name: Barclay, Thomas
name: Endl, Michael
name: Huber, Daniel
name: Foreman-Mackey, Daniel
name: Cochran, William D.
name: MacQueen, Phillip J.
name: Rowe, Jason F.
name: Quintana, Elisa V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Kepler-91b is a rare example of a transiting hot Jupiter around a red giant star, providing the possibility to study the formation and composition of hot Jupiters under different conditions compared to main-sequence stars. However, the planetary nature of Kepler-91b, which was confirmed using phase-curve variations by Lillo-Box et al., was recently called into question based on a re-analysis of Kepler data. We have obtained ground-based radial velocity observations from the Hobby-Eberly Telescope and unambiguously confirm the planetary nature of Kepler-91b by simultaneously modeling the Kepler and radial velocity data. The star exhibits temporally correlated noise due to stellar granulation which we model as a Gaussian Process. We hypothesize that it is this noise component that led previous studies to suspect Kepler-91b to be a false positive. Our work confirms the conclusions presented by Lillo-Box et al. that Kepler-91b is a 0.73+/-0.13 Mjup planet orbiting a red giant star.
description: Published in ApJ
Additional file 1 of Models of care for eating disorders: findings from a rapid review
Creators: name: Pehlivan, Melissa J.
name: Miskovic-Wheatley, Jane
name: Le, Anvi
name: Maloney, Danielle
name: Research Consortium, National Eating Disorders
name: Touyz, Stephen
name: Maguire, Sarah
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Biotechnology
Cancer
Science Policy

description: Supplementary Material 1
Additional file 2 of Models of care for eating disorders: findings from a rapid review
Creators: name: Pehlivan, Melissa J.
name: Miskovic-Wheatley, Jane
name: Le, Anvi
name: Maloney, Danielle
name: Research Consortium, National Eating Disorders
name: Touyz, Stephen
name: Maguire, Sarah
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Biotechnology
Cancer
Science Policy

description: Supplementary Material 2
Entanglement universality of two-qubit X-states
Creators: name: Mendonca, Paulo E. M. F.
name: Marchiolli, Marcelo A.
name: Galetti, Diógenes
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate that for every two-qubit state there is a X-counterpart, i.e., a corresponding two-qubit X-state of same spectrum and entanglement, as measured by concurrence, negativity or relative entropy of entanglement. By parametrizing the set of two-qubit X-states and a family of unitary transformations that preserve the sparse structure of a two-qubit X-state density matrix, we obtain the parametric form of a unitary transformation that converts arbitrary two-qubit states into their X-counterparts. Moreover, we provide a semi-analytic prescription on how to set the parameters of this unitary transformation in order to preserve concurrence or negativity. We also explicitly construct a set of X-state density matrices, parametrized by their purity and concurrence, whose elements are in one-to-one correspondence with the points of the concurrence versus purity (CP) diagram for generic two-qubit states.
description: 24 pages, 6 figures. v2 includes new references and minor changes (accepted version)
Pseudomyrma testacea .
Creators: name: Smith, Frederick
Publisher: name: Zenodo
Year: 1855
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Pseudomyrma
Pseudomyrma testacea

description: Sp. 10. Pseudomyrma testacea. Tetraponera testacea, Smith, Ann. and Mag. Nat. Hist., 2nd Ser. ix. 45. Female. - Length lines. Testaceous, smooth and shining; the head elongate, truncate behind, slightly emarginate at the vertex; a shallow impressed line running from the anterior stemma to the insertion of the antennae, where it terminates in a deep sulcation, carinate at its sides; the eyes black, and elongate-ovate; the mandibles ferruginous, roughly channelled longitudinally, with irregular striations, the teeth black. Thorax elongate-ovate, the pro- and metathorax rounded, the meso-thorax fusco-testaceous above; the whole very smooth and shining. Abdomen: the basal segment clavate, the second globose, the third slightly constricted, the whole very smooth and shining, Hab. South America (Napo). In the British Museum.
description: Published as part of Smith, Frederick, 1855, Descriptions of some species of Brazilian ants belonging to the genera Pseudomyrma, Eciton and Myrmica (with observations on their economy by Mr. H. W. Bates), pp. 156-169 in Transactions of the Entomological Society of London (2) 3 on page 168, DOI: 10.5281/zenodo.10243
title: Application of machine learning algorithms on VIV fatigue life assessment of multi-spanning subsea pipelines
Creators: name: Abdolalipour Miandoab, Mobin
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: Subsea pipelines are the most efficient and reliable method of transportation of liquid, gas, and multiphase products through an aquatic medium. Pipelines laid on the uneven seabed lose contact with the seabed, leaving it suspended in some areas. The length of the pipeline hung over the seabed is called freespan. The free-spanning length of the pipeline is subjected to different static and hydrodynamic loads where the Vortex-Induced Vibrations (VIV) are among the most severe factors threatening pipeline integrity. Repetitive deflection on the free-spanning length of the pipeline imposes fatigue damage on the pipeline structure. Consequently, it results in the early failure of the structure before the expected operational life. Regarding the critical role of subsea pipelines and the uncertainty of pipeline behavior against VIV damages, high safety factors are usually applied in designing subsea free-spanning pipelines, bringing unnecessary financial burdens on offshore pipeline projects. Designing subsea pipeline projects is primarily conducted based on standard codes (e.g., DNVGL RP-F105, DNVGL RP-C203, and DNVGL RP-F114). However, accurate assessment of the free-spanning pipeline integrity against the VIV needs advanced experimental and numerical modeling with extensive cost and time impacts. In this study, machine-learning algorithms are adopted to develop a cost-effective and easy-to-implement solution for VIV-induced fatigue analysis of free-spanning and multi-spanning pipelines. The numerical model was developed based on recommendations provided by DNVGL RP-F105 and verified by numerical results from FATFREE software, which is developed by DNV for analysis of subsea free-spanning pipelines (DET NORSKE VERITAS, 2021). The comparison conducted using the data presented by Pereira et al. (Pereira et al., 2008). The employment of machine learning methods requires a high-quality dataset covering all of the possible cases. In this regard, a Python script was developed to control ABAQUS for creating different case studies and interacting with output results to perform data cleaning and preparation. The procedure of creating case studies, reading and analyzing outcomes, and cleaning and preparing results for machine learning was performed by a fully automated cycle managed by Python scripts. More than 200000 configurations of single free-span and multi-spanning conditions were analyzed. In order to have a more realistic study, pipeline characteristics, and soil properties were selected from available industrial products and trusted industrial data such as standard codes of DNVGL. The study showed that machine learning algorithms can effectively predict the fatigue life of the free-spanning pipelines subjected to VIV oscillations. Particularly, this can be of significant importance during the initial design projects for a fast and fairly accurate assessment of the fatigue lives.
Reductions to the set of random strings: The resource-bounded case
Creators: name: Allender, Eric
name: Buhrman, Harry
name: Friedman, Luke
name: Loff, Bruno
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computational Complexity (cs.CC)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: This paper is motivated by a conjecture that BPP can be characterized in terms of polynomial-time nonadaptive reductions to the set of Kolmogorov-random strings. In this paper we show that an approach laid out in [Allender et al] to settle this conjecture cannot succeed without significant alteration, but that it does bear fruit if we consider time-bounded Kolmogorov complexity instead. We show that if a set A is reducible in polynomial time to the set of time-t-bounded Kolmogorov random strings (for all large enough time bounds t), then A is in P/poly, and that if in addition such a reduction exists for any universal Turing machine one uses in the definition of Kolmogorov complexity, then A is in PSPACE.
description: Conference version in MFCS 2012
What can quantum optics say about computational complexity theory?
Creators: name: Rahimi-Keshari, Saleh
name: Lund, Austin P.
name: Ralph, Timothy C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Complexity (cs.CC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Considering the problem of sampling from the output photon-counting probability distribution of a linear-optical network for input Gaussian states, we obtain results that are of interest from both quantum theory and the computational complexity theory point of view. We derive a general formula for calculating the output probabilities, and by considering input thermal states, we show that the output probabilities are proportional to permanents of positive-semidefinite Hermitian matrices. It is believed that approximating permanents of complex matrices in general is a #P-hard problem. However, we show that these permanents can be approximated with an algorithm in BPP^NP complexity class, as there exists an efficient classical algorithm for sampling from the output probability distribution. We further consider input squeezed-vacuum states and discuss the complexity of sampling from the probability distribution at the output.
description: 5 pages, 1 figure
title: L’esercizio della musica nelle scuole e nelle università italiane. Presente, passato e futuro
Creators: name: Aversano , Luca
Publisher: name: Roma Tre-Press
Year: 2010

description: In Italia, in generale, e in particolare nella scuola e nelle università, la situazione della pratica musicale come attività sociale e culturale è ben diversa che altrove. Sembra che alcuni fattori abbiano portato a uno stato generale di decadenza della pratica musicale in Italia. Tra questi ci sono senz'altro la svalutazione della manualità artigianale, il moralismo laico e cattolico, il maschilismo e un'educazione di tipo para-militaristica. A scenari mutati, il nostro compito è quello di acquisire consapevolezza di queste ipoteche culturali.

description: B@belonline vol. 8 Musica e Bildung. Saper suonare e imparare ad ascoltare
title: La musica nella formazione dei giovani
Creators: name: Berlinguer , Luigi
Publisher: name: Roma Tre-Press
Year: 2010

description: Nel saggio si prende in esame la riflessione filosofica attorno al ruolo della musica nell'educazione giovanile sviluppata in modo particolare da Platone e Aristotele, e soprattutto in quelle opere in cui entrambi i filosofi sono attenti a definire i caratteri dei loro rispettivi progetti politici. Più che alla speculazione tesa a definire i rapporti tra filosofia e musica in ambito teoretico, metafisico o estetico, intenzione del saggio è far riferimento a quesi testi platonici e aristotelici che affrontano la rilevanza della pratica musicale come elemento costitutivo della Bildung dei giovani.

description: B@belonline vol. 8 Musica e Bildung. Saper suonare e imparare ad ascoltare
Spin Wave Emission in Field-Driven Domain Wall Motion
Creators: name: Wang, X. S.
name: Wang, X. R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A domain wall (DW) in a nanowire can propagate under a longitudinal magnetic field by emitting spin waves (SWs). We numerically investigated the properties of SWs emitted by the DW motion, such as frequency and wavenumber, and their relation with the DW motion. For a wire with a low transverse anisotropy and in a field above a critical value, a DW emits SWs to both sides (bow and stern), while it oscillates and propagates at a low average speed. For a wire with a high transverse anisotropy and in a weak field, the DW emits mostly stern waves, while the DW distorts itself and DW center propagates forward like a drill at a relative high speed.
description: 6 pages, 5 figures
Transiting exoplanets and magnetic spots characterized with optical interferometry
Creators: name: Ligi, R.
name: Mourard, D.
name: Lagrange, A. -M.
name: Perraut, K.
name: Chiavassa, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Stellar activity causes difficulties in the characterization of transiting exoplanets. Studies have been performed to quantify its impact on infrared interferometry, but not in the visible domain, which however allows reaching better angular resolution and is also the one mostly used for spectroscopic and photometric measurements. We use a standard case to completely analyse the impact of an exoplanet and a spot on interferometric observables and relate it to current instrument capabilities, taking into account realistic achievable precisions. We built a numerical code called COMETS using analytical formulae to perform a simple comparison of exoplanet and spot signals. We explore instrumental specificities needed to detect them, like the baseline length required, the accuracy and S/N. We also discuss the impact of exoplanet and spot parameters on squared visibility and phase. We find that the main improvement to bring is the sensitivity of instruments. The accuracy on squared visibilities has to be improved by a factor 10 to detect an exoplanet of 0.1 mas, leading to $<0.5%$ precision, along with phase measurements of ~$5^°$ accuracy beyond the first null of visibility. For a 0.05 mas exoplanet, accuracies of ~$0.1%$ and ~$1^°$ from the first null are required on squared visibilities and phases, respectively. Magnetic spots can mimic these signals, leading to false exoplanet characterization. Phases measurements from the 3rd lobe is needed to distinguish between a spot and an exoplanet if they have the same radius. Increasing interferometer sensitivity, more objects will become common between interferometric targets and photometric ones. Furthermore, new missions like PLATO, CHEOPS or TESS will provide bright exoplanet host stars. Measurements will thus overlap and provide a better characterization of stellar activity and exoplanet.
description: Version 2 after language editing and a few typos corrected. 12 pages, 7 figures
Additional file 3 of Models of care for eating disorders: findings from a rapid review
Creators: name: Pehlivan, Melissa J.
name: Miskovic-Wheatley, Jane
name: Le, Anvi
name: Maloney, Danielle
name: Research Consortium, National Eating Disorders
name: Touyz, Stephen
name: Maguire, Sarah
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Biotechnology
Cancer
Science Policy

description: Supplementary Material 3
Long-distance quantum communication through any number of entanglement swapping operations
Creators: name: Khalique, Aeysha
name: Sanders, Barry C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a theory and accompanying mathematical model for quantum communication via any number of intermediate entanglement swapping operations and solve numerically for up to three intermediate entanglement swapping operations. Our model yields two-photon interference visibilities post-selected on photon counts at the intermediate entanglement-swapping stations. Realistic experimental conditions are accommodated through parametric down-conversion rate, photon-counter efficiencies and dark-count rates, and instrument and transmission losses. We calculate achievable quantum communication distances such that two-photon interference visibility exceeds the Bell-inequality threshold.
Induced and non-induced forbidden subposet problems
Creators: name: Patkos, Balazs
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05D05

description: The problem of determining the maximum size $La(n,P)$ that a $P$-free subposet of the Boolean lattice $B_n$ can have, attracted the attention of many researchers, but little is known about the induced version of these problems. In this paper we determine the asymptotic behavior of $La^*(n,P)$, the maximum size that an induced $P$-free subposet of the Boolean lattice $B_n$ can have for the case when $P$ is the complete two-level poset $K_{r,t}$ or the complete multi-level poset $K_{r,s_1,\dots,s_j,t}$ when all $s_i$'s either equal 4 or are large enough and satisfy an extra condition. We also show lower and upper bounds for the non-induced problem in the case when $P$ is the complete three-level poset $K_{r,s,t}$. These bounds determine the asymptotics of $La(n,K_{r,s,t})$ for some values of $s$ independently of the values of $r$ and $t$.
Additional file 1 of A literature review exploring how health systems respond to acute shocks in fragile and conflict-affected countries
Creators: name: Thu, Kyaw Myat
name: Bernays, Sarah
name: Abimbola, Seye
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Supplementary Material 1
Петрографический и рентгеноструктурный анализ пластически деформированных дунитов
Creators: name: Кульков Сергей Николаевич
name: Кульков Алексей Сергеевич
name: Чернышов Алексей Иванович
Publisher: name: Физическая мезомеханика
Year: 2010
Subjects: ОПТИЧЕСКАЯ ПЕТРОГРАФИЯ
ПЕТРОСТРУКТУРНЫЕ ТИПЫ
ПЛАСТИЧЕСКАЯ ДЕФОРМАЦИЯ
РЕНТГЕНОСТРУКТУРНЫЙ АНАЛИЗ
МИКРОСТРУКТУРЫ ПОРОД

description: Методами оптической петрографии и рентгеноструктурного анализа изучены дуниты, претерпевшие интенсивные пластические деформации с образованием различных петроструктурных типов. Показано, что в зависимости от увеличения степени деформации микроструктуры пород качественно изменяются в следующей последовательности: протогранулярная, порфирокластовая, порфиролейстовая, мозаичная, что отражается, соответственно, в изменении среднего размера кристаллитов на наноуровне.
Сейсмические активизации в Белино-Бусингольской зоне
Creators: name: Еманов Александр Федорович
name: Еманов Алексей Александрович
name: Лескова Екатерина Викторовна
Publisher: name: Физическая мезомеханика
Year: 2010
Subjects: СЕЙСМОЛОГИЯ
ФИЗИКА ОЧАГА
КОЛЛИЗИЯ
РИФТОВЫЕ ЗОНЫ
КРУПНЕЙШИЕ ЗЕМЛЕТРЯСЕНИЯ

description: В статье изучена пространственная структура сейсмической активизации, вызванной Бусингольским землетрясением 27.12.1991 г. (М = 6.5). Показано, что после главного толчка сейсмический режим эпицентральной области находится в аномально активизированном состоянии почти два десятилетия. Пульсирующий характер активизации делает ее еще более уникальным явлением. Показано, что активизировалась блочная структура Шишхидского нагорья совместно с Бусингольской впадиной. Грани блоков нагорья являются оперяющими разломами для Белино-Бусингольского разлома. Установлено, что пульсации активности и главное событие Бусингольского землетрясения приурочены к одному и тому же оперяющему разлому. Наблюдается колебательный характер в организации сейсмического процесса: распределенная во времени и пространстве сейсмичность около впадины чередуется с упорядоченной пульсацией активности на разломе по долине р. Давет-Сайлог-Гол.
Hydrodynamic Modes of a holographic $p-$ wave superfluid
Creators: name: Arias, Raul E.
name: Landea, Ignacio Salazar
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this work we analyze the hydrodynamics of a $p-$ wave superfluid on its strongly coupled regime by considering its holographic description. We obtain the poles of the retarded Green function through the computation of the quasi-normal modes of the dual AdS black hole background finding diffusive, pseudo-diffusive and sound modes. For the sound modes we compute the speed of sound and its attenuation as function of the temperature. For the diffusive and pseudo-diffusive modes we find that they acquire a non-zero real part at certain finite momentum.
description: 16 pag., 6 fig. Reference added. Minor corrections. Version accepted for publication in JHEP
title: Erkennung einer Link Layer Topologie durch passives Scannen
Creators: name: Rheinberger, Christoph
Publisher: name: FH Vorarlberg
Year: 2020
Subjects: subject: 004 Informatik

description: In dieser Arbeit wird eine Topologie-Erkennung beschrieben, welche durch rein passives Scannen ermöglicht wird. Dazu werden die verschiedenen Protokolle beschrieben, welche in dem Bereich Digital Substation verwendet werden, um mögliche Ansätze zu erarbeiten. Es werden die Redundanz-Protokolle STP (Spanning Tree Protocol), RSTP (Rapid Spanning Tree Protocol), PRP (Parallel Redundancy Protocol) und HSR (High-availability Seamless Redundancy) beschrieben. Es wird ein kurzer Überblick zum IEC-61850 Standard und dessen Protokolle SV (Sampled Values) und GOOSE (Generic Object Oriented Substation Event) gegeben. Auf dieser Grundlage wird eine Applikation entwickelt, welche die Data Link Layer Topologie erkennt. Die entwickelte Topologie-Erkennung wird als Proof-of-Concept für STP und RSTP Netzwerke verwendet und die entsprechenden Voraussetzungen werden beschrieben. Auf korrektes Verhalten wurde die in dieser Arbeit entwickelte Applikation mittels verschiedenen, simulierten Netzwerken und einem simplen Laboraufbau getestet. Die Applikation bietet auch die Möglichkeiten, solche Topologien zu visualisieren und zu vergleichen.
description: In this paper a topology recognition is described, which is realised by purely passive scanning. Therefore, the different protocols used in the field Digital Substation are described in order to develop possible approaches. The redundancy protocols STP (Spanning Tree Protocol), RSTP (Rapid Spanning Tree Protocol), PRP (Parallel Redundancy Protocol) and HSR (High-availability Seamless Redundancy) are explained to identify valid approaches. A short overview of the IEC-61850 standard and its protocols SV (Sampled Values) and GOOSE (Generic Object Oriented Substation Event) is given. With this information, an application is developed that recognizes the Data Link Layer topology. The eveloped topology scanner is used as proof of concept for STP and RSTP networks and the corresponding requirements are described. The application developed in this thesis was tested for correct behaviour using different simulated networks and a simple laboratory setup. Features are added to visualize and compare given topologies.
Entanglement Entropies of the quarter filled Hubbard model
Creators: name: Calabrese, Pasquale
name: Essler, Fabian H. L.
name: Lauchli, Andreas M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study Renyi and von Neumann entanglement entropies in the ground state of the one dimensional quarter-filled Hubbard model with periodic boundary conditions. We show that they exhibit an unexpected dependence on system size: for L=4 mod 8 the results are in agreement with expectations based on conformal field theory, while for L=0 mod 8 additional contributions arise. We show that these can be understood in terms of a "shell-filling" effect, and we develop a conformal field theory approach to calculate the additional contributions to the entropies. These analytic results are found to be in excellent agreement with density matrix renormalisation group computations for weak Hubbard interactions. We argue that for larger interactions the presence of a marginal irrelevant operator in the spin sector strongly affects the entropies at the finite sizes accessible numerically, and we present an effective way to take them into account.
description: 28 pages, 9 figures