AIP Conference Proceedings: Most Cited articles
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Most cited articles from AIP Conference Proceedingsen-usMon, 03 Oct 2022 11:26:27 GMTAtypon® Literatum™http://validator.w3.org/feed/docs/rss2.html10080AIP Conference Proceedings: Most Cited articleshttps://aip.scitation.org/na101/home/literatum/publisher/aip/journals/content/apc/2022/apc.2022.2676.issue-1/apc.2022.2676.issue-1/20221003/apc.2022.2676.issue-1.cover.jpg
https://aip.scitation.org/feed/apc/most-cited
Periodic table for topological insulators and superconductors
https://aip.scitation.org/doi/10.1063/1.3149495?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.3149495?feed=most-citedGapped phases of noninteracting fermions, with and without charge conservation and time‐reversal symmetry, are classified using Bott periodicity. The symmetry and spatial dimension determines a general universality class, which corresponds to one of the 2 types of complex and 8 types of real Clifford algebras. The phases within a given class are further characterized by a topological invariant, an element of some Abelian group that can be 0, Z, or The interface between two infinite phases with different topological numbers must carry some gapless mode. Topological properties of finite systems are described in terms of K‐homology. This classification is robustAlexei Kitaev, Vladimir Lebedev, and Mikhail Feigel’manMon, 18 May 2009 07:00:00 GMTJacob’s ladder of density functional approximations for the exchange-correlation energy
https://aip.scitation.org/doi/10.1063/1.1390175?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.1390175?feed=most-citedThe ground-state energy and density of a many-electron system are often calculated by Kohn-Sham density functional theory. We describe a ladder of approximations for the exchange-correlation energy as a functional of the electron density. At the lowest rung of this ladder, the contribution to the energy from a volume element of 3-dimensional space is determined by the local density there. Higher rungs or levels incorporate increasingly complex ingredients constructed from the density or the Kohn-Sham orbitals in or around this volume element. We identify which additional exact conditions can be satisfied at each level, and discuss the extent to whichJohn P. Perdew, Karla Schmidt, V. Van Doren, C. Van Alsenoy, and P. GeerlingsTue, 14 Aug 2001 07:00:00 GMTThe large N limit of superconformal field theories and supergravity
https://aip.scitation.org/doi/10.1063/1.59653?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.59653?feed=most-citedWe show that the large N limit of certain conformal field theories in various dimensions include in their Hilbert space a sector describing supergravity on the product of Anti-deSitter spacetimes, spheres and other compact manifolds. This is shown by taking some branes in the full M/string theory and then taking a low energy limit where the field theory on the brane decouples from the bulk. We observe that, in this limit, we can still trust the near horizon geometry for large N. The enhanced supersymmetries of the near horizon geometry correspond to the extra supersymmetry generators present in the superconformalJuan Maldacena, Ricardo E. Gamboa Saravi, Horacio Falomir, and Fidel A. SchaposnikThu, 10 Apr 2008 07:00:00 GMTNested Sampling
https://aip.scitation.org/doi/10.1063/1.1835238?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.1835238?feed=most-cited“The evidence Z is often the single most important number in the [Bayesian] problem and I think every effort should be devoted to calculating it” (MacKay 2003). Nested sampling does this by giving a direct estimate of the density of states. Posterior samples are an optional by‐product.John Skilling, Rainer Fischer, Roland Preuss, and Udo von ToussaintMon, 22 Nov 2004 08:00:00 GMTGreen synthesis of nanoparticles: Their advantages and disadvantages
https://aip.scitation.org/doi/10.1063/1.4945168?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.4945168?feed=most-citedThe nanotechnology and biomedical sciences opens the possibility for a wide variety of biological research topics and medical uses at the molecular and cellular level. The biosynthesis of nanoparticles has been proposed as a cost-effective and environmentally friendly alternative to chemical and physical methods. Plant-mediated synthesis of nanoparticles is a green chemistry approach that connects nanotechnology with plants. Novel methods of ideally synthesizing NPs are thus thought that are formed at ambient temperatures, neutral pH, low costs and environmentally friendly fashion. Keeping these goals in view nanomaterials have been synthesized using various routes. Among the biological alternatives, plants and plantKhadeeja Parveen, Viktoria Banse, Lalita Ledwani, Niti Nipun Sharma, Ford Lumban Gaol, and Jamil AkhtarWed, 13 Apr 2016 07:00:00 GMTSIMNRA, a simulation program for the analysis of NRA, RBS and ERDA
https://aip.scitation.org/doi/10.1063/1.59188?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.59188?feed=most-citedSIMNRA is a Microsoft Windows 95/Windows NT program with fully graphical user interface for the simulation of non-Rutherford backscattering, nuclear reaction analysis and elastic recoil detection analysis with MeV ions. About 300 different non-Rutherford and nuclear reactions cross-sections are included. SIMNRA can calculate any ion-target combination including incident heavy ions and any geometry including transmission geometry. Arbitrary multi-layered foils in front of the detector can be used. Energy loss straggling includes the corrections by Chu to Bohr’s straggling theory, propagation of straggling in thick layers, geometrical straggling and straggling due to multiple small angle scattering. The effects of plural largeM. Mayer, Jerome L. Duggan, Barbara Stippec, and Ira Lon MorganThu, 10 Apr 2008 07:00:00 GMTComplex intuitionistic fuzzy sets
https://aip.scitation.org/doi/10.1063/1.4757515?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.4757515?feed=most-citedThis paper presents a new concept of complex intuitionistic fuzzy set (CIFS) which is generalized from the innovative concept of a complex fuzzy set (CFS) by adding the non-membership term to the definition of CFS. The novelty of CIFS lies in its ability for membership and non-membership functions to achieve more range of values. The ranges of values are extended to the unit circle in complex plane for both membership and non-membership functions instead of [0, 1] as in the conventional intuitionistic fuzzy functions. We define basic operations namely complement, union, and intersection on CIFSs. Properties of these operations areAbdulazeez (Moh'd Jumah) S. Alkouri, Abdul Razak Salleh, Bambang Ari-Wahjoedi, Radzuan Razali, and Marneni NarahariThu, 27 Sep 2012 07:00:00 GMTComputational Studies of Quantum Spin Systems
https://aip.scitation.org/doi/10.1063/1.3518900?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.3518900?feed=most-citedThese lecture notes introduce quantum spin systems and several computational methods for studying their ground‐state and finite‐temperature properties. Symmetry‐breaking and critical phenomena are first discussed in the simpler setting of Monte Carlo studies of classical spin systems, to illustrate finite‐size scaling at continuous and first‐order phase transitions. Exact diagonalization and quantum Monte Carlo (stochastic series expansion) algorithms and their computer implementations are then discussed in detail. Applications of the methods are illustrated by results for some of the most essential models in quantum magnetism, such as the Heisenberg antiferromagnet in one and two dimensions, as well as extended models usefulAnders W. Sandvik, Adolfo Avella, and Ferdinando ManciniMon, 15 Nov 2010 08:00:00 GMTComparison on graphite, graphene oxide and reduced graphene oxide: Synthesis and characterization
https://aip.scitation.org/doi/10.1063/1.5005764?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.5005764?feed=most-citedGraphene oxide (GO) and reduced graphene oxide (RGO) are known to have superior properties for various applications. This work compares the properties of GO and RGO with graphite. GO was prepared by using Improved Hummer’s method whereas the produced GO was subjected to chemical reduction with the use of hydrazine hydrate. Graphite, GO and RGO had different morphologies, quality, functionalized groups, UV-Vis absorption peaks and crystallinity. With the removal of oxygen-containing functional group during reduction for RGO, the quality of samples was decreased due to higher intensity of D band than G band was seen in Raman results. In addition,N. M. S. Hidayah, Wei-Wen Liu, Chin-Wei Lai, N. Z. Noriman, Cheng-Seong Khe, U. Hashim, H. Cheun Lee, AzizHamidi Abdul, BakarBadorul Hisham Abu, JohariMegat Azmi Megat, KeongChoong Kok, YusoffMohd Suffian, HasanMohd Rosli Mohd, RamliMuhd Harris, and HalimHerniMon, 16 Oct 2017 05:49:09 GMTAn improved computational constitutive model for brittle materials
https://aip.scitation.org/doi/10.1063/1.46199?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.46199?feed=most-citedAn improved computational constitutive model for brittle materials is presented. It is applicable for brittle materials subjected to large strains, high strain rates and high pressures, and is well‐suited for computations in both Lagrangian and Eulerian codes. The equivalent strength is dependent on the intact strength, fractured strength, strain rate, pressure, and damage. The pressure includes the effect of bulking, which is introduced through the transfer of internal energy from decreased shear and deviator stresses to potential internal energy associated with increased hydrostatic pressure. Examples are presented to illustrate the model.Gordon R. Johnson, Tim J. Holmquist, S. C. Schmidt, J. W. Shaner, G. A. Samara, and M. RossMon, 12 May 2008 07:00:00 GMTWhat is big data? A consensual definition and a review of key research topics
https://aip.scitation.org/doi/10.1063/1.4907823?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.4907823?feed=most-citedAlthough Big Data is a trending buzzword in both academia and the industry, its meaning is still shrouded by much conceptual vagueness. The term is used to describe a wide range of concepts: from the technological ability to store, aggregate, and process data, to the cultural shift that is pervasively invading business and society, both drowning in information overload. The lack of a formal definition has led research to evolve into multiple and inconsistent paths. Furthermore, the existing ambiguity among researchers and practitioners undermines an efficient development of the subject. In this paper we have reviewed the existing literature onAndrea De Mauro, Marco Greco, Michele Grimaldi, Georgios Giannakopoulos, Damianos P. Sakas, and Daphne Kyriaki-ManessiTue, 17 Feb 2015 08:00:00 GMTSpectrRelax: An application for Mössbauer spectra modeling and fitting
https://aip.scitation.org/doi/10.1063/1.4759488?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.4759488?feed=most-citedThe SpectrRelax application was created for analysis and fitting of absorption and emission Mossbauer spectra of isotopes with 1/2 ↔ 3/2 transitions. Available models include a single Pseudo-Voigt line, doublet, and a sextet, a number of relaxation models, and a distribution of hyperfine/relaxation parameters of any model. SpectRelax can evaluate user supplied analytical expressions of model parameters and their error estimates. Complex parameter constraints or even new models can be implemented by setting parameter values to analytical expressions. Optimal model parameters search is performed using a maximum likelihood criterion in a Levenberg-Marquardt (L-M) algorithm. In the search process, a matrixM. E. Matsnev, V. S. Rusakov, Jiří Tuček, and Libor MachalaFri, 12 Oct 2012 07:00:00 GMTThe FLUKA code: description and benchmarking
https://aip.scitation.org/doi/10.1063/1.2720455?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.2720455?feed=most-citedThe physics model implemented inside the FLUKA code are briefly described, with emphasis on hadronic interactions. Examples of the capabilities of the code are presented including basic (thin target) and complex benchmarks.G. Battistoni, F. Cerutti, A. Fassò, A. Ferrari, S. Muraro, J. Ranft, S. Roesler, P. R. Sala, Michael Albrow, and Rajendran RajaFri, 30 Mar 2007 07:00:00 GMTThe role of data fusion in predictive maintenance using digital twin
https://aip.scitation.org/doi/10.1063/1.5031520?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.5031520?feed=most-citedModern aerospace industry is migrating from reactive to proactive and predictive maintenance to increase platform operational availability and efficiency, extend its useful life cycle and reduce its life cycle cost. Multiphysics modeling together with data-driven analytics generate a new paradigm called “Digital Twin.” The digital twin is actually a living model of the physical asset or system, which continually adapts to operational changes based on the collected online data and information, and can forecast the future of the corresponding physical counterpart. This paper reviews the overall framework to develop a digital twin coupled with the industrial Internet of Things technologyZheng Liu, Norbert Meyendorf, Nezih Mrad, ChimentiDale E., and BondLeonard J.Fri, 20 Apr 2018 10:57:36 GMTThe large enriched germanium experiment for neutrinoless double beta decay (LEGEND)
https://aip.scitation.org/doi/10.1063/1.5007652?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.5007652?feed=most-citedThe observation of neutrinoless double-beta decay (0νββ) would show that lepton number is violated, reveal that neu-trinos are Majorana particles, and provide information on neutrino mass. A discovery-capable experiment covering the inverted ordering region, with effective Majorana neutrino masses of 15 − 50 meV, will require a tonne-scale experiment with excellent energy resolution and extremely low backgrounds, at the level of ∼0.1 count /(FWHM·t·yr) in the region of the signal. The current generation 76Ge experiments GERDA and the Majorana Demonstrator, utilizing high purity Germanium detectors with an intrinsic energy resolution of 0.12%, have achieved the lowest backgrounds by over anN. Abgrall, A. Abramov, N. Abrosimov, I. Abt, M. Agostini, M. Agartioglu, A. Ajjaq, S. I. Alvis, F. T. AvignoneIII, X. Bai, M. Balata, I. Barabanov, A. S. Barabash, P. J. Barton, L. Baudis, L. Bezrukov, T. Bode, A. Bolozdynya, D. Borowicz, A. Boston, H. Boston, S. T. P. Boyd, R. Breier, V. Brudanin, R. Brugnera, M. Busch, M. Buuck, A. Caldwell, T. S. Caldwell, T. Camellato, M. Carpenter, C. Cattadori, J. Cederkäll, Y.-D. Chan, S. Chen, A. Chernogorov, C. D. Christofferson, P.-H. Chu, R. J. Cooper, C. Cuesta, E. V. Demidova, Z. Deng, M. Deniz, J. A. Detwiler, N. Di Marco, A. Domula, Q. Du, Yu. Efremenko, V. Egorov, S. R. Elliott, D. Fields, F. Fischer, A. Galindo-Uribarri, A. Gangapshev, A. Garfagnini, T. Gilliss, M. Giordano, G. K. Giovanetti, M. Gold, P. Golubev, C. Gooch, P. Grabmayr, M. P. Green, J. Gruszko, I. S. Guinn, V. E. Guiseppe, V. Gurentsov, Y. Gurov, K. Gusev, J. Hakenmüeller, L. Harkness-Brennan, Z. R. Harvey, C. R. Haufe, L. Hauertmann, D. Heglund, L. Hehn, A. Heinz, R. Hiller, J. Hinton, R. Hodak, W. Hofmann, S. Howard, M. A. Howe, M. Hult, L. V. Inzhechik, J. Janicskó Csáthy, R. Janssens, M. Ješkovský, J. Jochum, H. T. Johansson, D. Judson, M. Junker, J. Kaizer, K. Kang, V. Kazalov, Y. Kermadic, F. Kiessling, A. Kirsch, A. Kish, A. Klimenko, K. T. Knöpfle, O. Kochetov, S. I. Konovalov, I. Kontul, V. N. Kornoukhov, T. Kraetzschmar, K. Kröninger, A. Kumar, V. V. Kuzminov, K. Lang, M. Laubenstein, A. Lazzaro, Y. L. Li, Y.-Y. Li, H. B. Li, S. T. Lin, M. Lindner, I. Lippi, S. K. Liu, X. Liu, J. Liu, D. Loomba, A. Lubashevskiy, B. Lubsandorzhiev, G. Lutter, H. Ma, B. Majorovits, F. Mamedov, R. D. Martin, R. Massarczyk, J. A. J. Matthews, N. McFadden, D.-M. Mei, H. Mei, S. J. Meijer, D. Mengoni, S. Mertens, W. Miller, M. Miloradovic, R. Mingazheva, M. Misiaszek, P. Moseev, J. Myslik, I. Nemchenok, T. Nilsson, P. Nolan, C. O’Shaughnessy, G. Othman, K. Panas, L. Pandola, L. Papp, K. Pelczar, D. Peterson, W. Pettus, A. W. P. Poon, P. P. Povinec, A. Pullia, X. C. Quintana, D. C. Radford, J. Rager, C. Ransom, F. Recchia, A. L. Reine, S. Riboldi, K. Rielage, S. Rozov, N. W. Rouf, E. Rukhadze, N. Rumyantseva, R. Saakyan, E. Sala, F. Salamida, V. Sandukovsky, G. Savard, S. Schönert, A.-K. Schütz, O. Schulz, M. Schuster, B. Schwingenheuer, O. Selivanenko, B. Sevda, B. Shanks, E. Shevchik, M. Shirchenko, F. Simkovic, L. Singh, V. Singh, M. Skorokhvatov, K. Smolek, A. Smolnikov, A. Sonay, M. Spavorova, I. Stekl, D. Stukov, D. Tedeschi, J. Thompson, T. Van Wechel, R. L. Varner, A. A. Vasenko, S. Vasilyev, A. Veresnikova, K. Vetter, K. von Sturm, K. Vorren, M. Wagner, G.-J. Wang, D. Waters, W.-Z. Wei, T. Wester, B. R. White, C. Wiesinger, J. F. Wilkerson, M. Willers, C. Wiseman, M. Wojcik, H. T. Wong, J. Wyenberg, W. Xu, E. Yakushev, G. Yang, C.-H. Yu, Q. Yue, V. Yumatov, J. Zeman, Z. Zeng, I. Zhitnikov, B. Zhu, D. Zinatulina, A. Zschocke, A. J. Zsigmond, K. Zuber, G. Zuzel, CivitareseOsvaldo, SteklIvan, and SuhonenJouniMon, 16 Oct 2017 06:32:40 GMTIntroduction to Nonequilibrium Quantum Field Theory
https://aip.scitation.org/doi/10.1063/1.1843591?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.1843591?feed=most-citedThere has been substantial progress in recent years in the quantitative understanding of the nonequilibrium time evolution of quantum fields. Important topical applications, in particular in high energy particle physics and cosmology, involve dynamics of quantum fields far away from the ground state or thermal equilibrium. In these cases, standard approaches based on small deviations from equilibrium, or on a sufficient homogeneity in time underlying kinetic descriptions, are not applicable. A particular challenge is to connect the far‐from‐equilibrium dynamics at early times with the approach to thermal equilibrium at late times. Understanding the “link” between the early‐ and the late‐timeJürgen Berges, Mirian Bracco, Marcelo Chiapparini, Erasmo Ferreira, and Takeshi KodamaWed, 15 Dec 2004 08:00:00 GMTThree-dimensional quantum geometry and black holes
https://aip.scitation.org/doi/10.1063/1.59661?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.59661?feed=most-citedWe review some aspects of three-dimensional quantum gravity with emphasis in the map that follows from the Brown-Henneaux conformal algebra. The general solution to the classical equations of motion with anti-de Sitter boundary conditions is displayed. This solution is parametrized by two functions which become Virasoro operators after quantization. A map from the space of states to the space of classical solutions is exhibited. Some recent proposals to understand the Bekenstein-Hawking entropy are reviewed in this context. The origin of the boundary degrees of freedom arising in gravity is analyzed in detail using a Hamiltonian Chern-Simons formalism.Máximo Bañados, Ricardo E. Gamboa Saravi, Horacio Falomir, and Fidel A. SchaposnikThu, 10 Apr 2008 07:00:00 GMTThe State of the Art—Gauge Theories
https://aip.scitation.org/doi/10.1063/1.2947450?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.2947450?feed=most-citedHoward Georgi, Hugh C. Wolfe, and Carl E. CarlsonTue, 01 Jul 2008 07:00:00 GMTIntroduction to Monte Carlo Simulation
https://aip.scitation.org/doi/10.1063/1.3295638?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.3295638?feed=most-citedThis paper reviews the history and principles of Monte Carlo simulation, emphasizing techniques commonly used in the simulation of medical imaging.Robert L. Harrison, Carlos Granja, and Claude LeroyFri, 08 Jan 2010 08:00:00 GMTPolymer powders for selective laser sintering (SLS)
https://aip.scitation.org/doi/10.1063/1.4918516?feed=most-cited
https://aip.scitation.org/doi/10.1063/1.4918516?feed=most-citedSelective Laser Sintering (SLS) is close to be accepted as a production technique (Additive Manufacturing). However, one problem limiting employment of SLS for additive manufacturing in a wide-ranging industrial scope is the narrow variety of applicable polymers. The commonly applied SLS powder to date is polyamide 12 (PA 12). PA 12 or ccompounds of PA 12 (dry blends) are approximately 90 % of complete industrial consumption. The remaining small quantity is distributed on polyamide 11 (PA11) and some other ‘exotic’ polymers (TPU, PEBA, P(E)EK). Industry is awaiting commodity polymers like polypropylene (PP) or polyethylene (PE) crucial to open new marketManfred Schmid, Antonio Amado, Konrad Wegener, and Sadhan C. JanaFri, 22 May 2015 07:00:00 GMT