@inbook{36923, author = {{Weber, Jutta}}, booktitle = {{Science Transformed? Debating Claims of an Epochal Break}}, editor = {{Nordmann, Alfred and Radder, Hans and Schiemann, Gregor}}, pages = {{159--176}}, publisher = {{University of Pittsburg Press}}, title = {{{Technoscience as Popular Culture. On Pleasure, Consumer Technologies & the Economy of Attention}}}, year = {{2011}}, } @inbook{36926, author = {{Weber, Jutta}}, booktitle = {{Kriegsmaschinen. Roboter im Militäreinsatz}}, editor = {{Marsiske, Hans-Arthur}}, pages = {{31--52}}, publisher = {{Heise Verlag}}, title = {{{Vorratsbomben im Himmel. Über digitalen Terror, unsichtbare Opfer und die Rhetorik der Präzision}}}, year = {{2011}}, } @article{8178, abstract = {{In [Piani et al., PRL106 (2011) 220403], an activation protocol was introduced which maps the general non-classical (multipartite) correlations between given systems into bipartite entanglement between the systems and local ancillae by means of a potentially highly entangling interaction. Here, we study how this activation protocol can be used to entangle the starting systems themselves via entanglement swapping through a measurement on the ancillae. Furthermore, we bound the relative entropy of quantumness (a naturally arising measure of non-classicality in the scheme of Piani et al. above) for a special class of separable states, the so-called classical–quantum states. In particular, we fully characterize the classical–quantum two-qubit states that are maximally non-classical.}}, author = {{Gharibian, Sevag and PIANI, MARCO and ADESSO, GERARDO and CALSAMIGLIA, JOHN and HORODECKI, PAWEŁ}}, issn = {{0219-7499}}, journal = {{International Journal of Quantum Information}}, number = {{07n08}}, pages = {{1701--1713}}, publisher = {{World Scientific Pub Co Pte Lt}}, title = {{{Characterizing Quantumness via Entanglement Creation}}}, doi = {{10.1142/s0219749911008258}}, volume = {{09}}, year = {{2011}}, } @inproceedings{8176, abstract = {{Approximation algorithms for classical constraint satisfaction problems are one of the main research areas in theoretical computer science. Here we define a natural approximation version of the QMA-complete local Hamiltonian problem and initiate its study. We present two main results. The first shows that a non-trivial approximation ratio can be obtained in the class NP using product states. The second result (which builds on the first one), gives a polynomial time (classical) algorithm providing a similar approximation ratio for dense instances of the problem. The latter result is based on an adaptation of the "exhaustive sampling method" by Arora et al. [J. Comp. Sys. Sci. 58, p.193 (1999)] to the quantum setting, and might be of independent interest.}}, author = {{Gharibian, Sevag and Kempe, Julia}}, booktitle = {{IEEE Annual Conference on Computational Complexity (CCC 2011)}}, isbn = {{9781457701795}}, location = {{San Jose, USA}}, publisher = {{IEEE}}, title = {{{Approximation Algorithms for QMA-Complete Problems}}}, doi = {{10.1109/ccc.2011.15}}, year = {{2011}}, } @article{8177, abstract = {{We devise a protocol in which general nonclassical multipartite correlations produce a physically relevant effect, leading to the creation of bipartite entanglement. In particular, we show that the relative entropy of quantumness, which measures all nonclassical correlations among subsystems of a quantum system, is equivalent to and can be operationally interpreted as the minimum distillable entanglement generated between the system and local ancillae in our protocol. We emphasize the key role of state mixedness in maximizing nonclassicality: Mixed entangled states can be arbitrarily more nonclassical than separable and pure entangled states.}}, author = {{Piani, Marco and Gharibian, Sevag and Adesso, Gerardo and Calsamiglia, John and Horodecki, Paweł and Winter, Andreas}}, issn = {{0031-9007}}, journal = {{Physical Review Letters}}, number = {{22}}, publisher = {{American Physical Society (APS)}}, title = {{{All Nonclassical Correlations Can Be Activated into Distillable Entanglement}}}, doi = {{10.1103/physrevlett.106.220403}}, volume = {{106}}, year = {{2011}}, } @article{42728, author = {{Fuchs, Christian}}, journal = {{MATRIZes}}, number = {{1}}, pages = {{109--133}}, title = {{{Como podemos definir vigilância?}}}, doi = {{https://doi.org/10.11606/issn.1982-8160.v5i1p109-136}}, volume = {{5}}, year = {{2011}}, } @article{41652, author = {{Fuchs, Christian}}, journal = {{Global Media Journal – Australian Edition: Contribution to the Special Issue on “WikiLeaks: Journalism and the 21st Century Mediascape“ (edited by Hart Cohen and Antonio Castillo)}}, number = {{1}}, title = {{{The Political Economy of WikiLeaks: Power 2.0? Surveillance 2.0? Criticism 2.0? Alternative Media 2.0?}}}, volume = {{5}}, year = {{2011}}, } @article{41653, author = {{Fuchs, Christian}}, journal = {{Information: [special issue on “Trust and privacy in our networked world“, edited by Dieter M. Arnold and Herman T. Tavani]}}, number = {{1}}, pages = {{140--165}}, title = {{{An Alternative View of Privacy on Facebook}}}, doi = {{https://doi.org/10.3390/info2010140}}, volume = {{2}}, year = {{2011}}, } @article{41654, author = {{Fuchs, Christian}}, journal = {{Surveillance & Society}}, number = {{3}}, pages = {{288--309}}, title = {{{Web 2.0, Prosumption, and Surveillance. [special issue on “Marketing, consumption and surveillance”, edited by Jason Pridmore and Detlev Zwick]}}}, doi = {{https://doi.org/10.24908/ss.v8i3.4165}}, volume = {{8}}, year = {{2011}}, } @article{41620, author = {{Fuchs, Christian}}, journal = {{Journal of Information, Communication and Ethics in Society }}, number = {{4}}, pages = {{220--237}}, title = {{{Towards an Alternative Concept of Privacy}}}, doi = {{https://doi.org/10.1108/14779961111191039}}, volume = {{9}}, year = {{2011}}, } @article{41651, author = {{Fuchs, Christian}}, journal = {{Fast Capitalism}}, number = {{1}}, title = {{{A Contribution to the Critique of the Political Economy of Google}}}, volume = {{8}}, year = {{2011}}, } @article{42608, author = {{Fuchs, Christian}}, journal = {{tripleC – Journal for a Global Sustainable Information Society}}, number = {{2}}, pages = {{190--194}}, title = {{{Two New Critical Internet Studies-Books: Marcus Breen’s “Uprising” and Eran Fisher’s “Media and New Capitalism in the Digital Age”}}}, doi = {{https://doi.org/10.31269/triplec.v9i2.268}}, volume = {{9}}, year = {{2011}}, } @article{42607, author = {{Fuchs, Christian and Winseck, Dwayne}}, journal = {{tripleC}}, number = {{2}}, pages = {{247--271}}, title = {{{Critical Media and Communication Studies Today. A Conversation}}}, doi = {{https://doi.org/10.31269/triplec.v9i2.270}}, volume = {{9}}, year = {{2011}}, } @misc{42610, author = {{Fuchs, Christian}}, booktitle = {{Futurezone}}, title = {{{"BlackBerry-Riots": Gewalt hat andere Gründe [“BlackBerry-Tiots“: Violence has Other Causes“]}}}, year = {{2011}}, } @misc{42609, author = {{Fuchs, Christian}}, booktitle = {{Counterfire}}, title = {{{“Twitter Mobs“ and the Structural Violence of Neoliberalism}}}, year = {{2011}}, } @article{25964, abstract = {{Capacitive sensors are the most commonly used devices for the detection of humidity because they are inexpensive and the detection mechanism is very specific for humidity. However, especially for industrial processes, there is a lack of dielectrics that are stable at high temperature (>200 °C) and under harsh conditions. We present a capacitive sensor based on mesoporous silica as the dielectric in a simple sensor design based on pressed silica pellets. Investigation of the structural stability of the porous silica under simulated operating conditions as well as the influence of the pellet production will be shown. Impedance measurements demonstrate the utility of the sensor at both low (90 °C) and high (up to 210 °C) operating temperatures.}}, author = {{Wagner, Thorsten and Krotzky, Sören and Weiß, Alexander and Sauerwald, Tilman and Kohl, Claus-Dieter and Roggenbuck, Jan and Tiemann, Michael}}, issn = {{1424-8220}}, journal = {{Sensors}}, pages = {{3135--3144}}, title = {{{A High Temperature Capacitive Humidity Sensor Based on Mesoporous Silica}}}, doi = {{10.3390/s110303135}}, year = {{2011}}, } @article{35676, abstract = {{Um die Qualität der Ausbildung von Lehrkräften beurteilen zu können, wurden in den letzten Jahren verschiedene Untersuchungen zur Kompetenzmodellierung und Kompetenzmessung bei Lehr­amtsstudierenden und Lehrkräften initiiert. Im Zusammenhang mit möglichen Maßnahmen zur Verbesserung der Lehrerausbildung wird dabei auch über bedarfsgerechte und individualisierte Fördermaßnahmen gesprochen. Als erster Schritt auf diesem Weg kann eine Typenbildung in der Gruppe der Lehramtsanwärter dazu dienen, eine gezielte Binnendifferenzierung vorzunehmen. Vor diesem Hintergrund wurden in der vorgestellten Analyse die Daten einer bundeslandübergreifenden Kompetenzmessung bei Lehramtsstudierenden der Physik dazu genutzt, eine Typisierung auf der Grundlage der gemessenen Leistungen in den drei Bereichen des Professionswissens von Physiklehrkräften (Fachwissen, fachdidaktisches Wissen, allgemeines pädagogisches Wissen) durchzuführen. Dabei konnten drei unterschiedliche Kompetenzprofile identifiziert werden: ein fachenthusiastisches Profil, ein schulpraktisch orientiertes Profil und ein leistungsschwaches Profil. Die identifizierten Profile werden im Weiteren anhand demographischer Daten, Beliefs und motivationaler Orientierungen charakterisiert, so dass die Ergebnisse als Anknüpfungspunkt genutzt werden könnten, um künftig eine stärkere Individualisierung der Lehrerausbildung speziell im Fach Physik zu realisieren.}}, author = {{Gramzow, Yvonne and Riese, Josef and Reinhold, Peter}}, journal = {{PhyDid A - Physik und Didaktik in Schule und Hochschule}}, pages = {{10--21}}, title = {{{Wissensbasierte Kompetenzprofile angehender Physiklehrkräfte}}}, volume = {{10}}, year = {{2011}}, } @phdthesis{64745, author = {{Dahmen, Rafael}}, title = {{{Direct limit constructions in infinite dimensional Lie theory}}}, year = {{2011}}, } @article{4044, abstract = {{A simulation environment for metallic nanostructures based on the Discontinuous Galerkin Time Domain method is presented. The model is used to compute the linear and nonlinear optical response of split ring resonators and to study physical mechanisms that contribute to second harmonic generation.}}, author = {{Grynko, Yevgen and Förstner, Jens and Meier, Torsten}}, issn = {{1825-1242}}, journal = {{AAPP | Atti della Accademia Peloritana dei Pericolanti}}, keywords = {{tet_topic_numerics, tet_topic_shg, tet_topic_meta}}, number = {{1}}, title = {{{Application of the discontinous Galerkin time domain method to the optics of metallic nanostructures}}}, doi = {{10.1478/C1V89S1P041}}, volume = {{89}}, year = {{2011}}, } @article{4046, abstract = {{We demonstrate by spin quantum beat spectroscopy that in undoped symmetric (110)-oriented GaAs/AlGaAs single quantum wells, even a symmetric spatial envelope wave function gives rise to an asymmetric in-plane electron Land´e g-factor. The anisotropy is neither a direct consequence of the asymmetric in-plane Dresselhaus splitting nor a direct consequence of the asymmetric Zeeman splitting of the hole bands, but rather it is a pure higher-order effect that exists as well for diamond-type lattices. The measurements for various well widths are very well described within 14 × 14 band k·p theory and illustrate that the electron spin is an excellent meter variable for mapping out the internal—otherwise hidden—symmetries in two-dimensional systems. Fourth-order perturbation theory yields an analytical expression for the strength of the g-factor anisotropy, providing a qualitative understanding of the observed effects.}}, author = {{Hübner, J. and Kunz, S. and Oertel, S. and Schuh, D. and Pochwała, M. and Duc, H. T. and Förstner, Jens and Meier, Torsten and Oestreich, M.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, keywords = {{tet_topic_qw}}, number = {{4}}, pages = {{041301(R)}}, publisher = {{American Physical Society (APS)}}, title = {{{Electron g-factor anisotropy in symmetric (110)-oriented GaAs quantum wells}}}, doi = {{10.1103/physrevb.84.041301}}, volume = {{84}}, year = {{2011}}, }