Thesis (Ph. D.)--Mississippi State University. / Includes bibliographical references (leaves [296]-311).

Submitted by Alice Araujo (alice.caraujo@ufpe.br) on 2018-05-22T21:25:45Z No. of bitstreams: 1 DISSERTAÇÃO Ari Patrick Pereira da Costa.pdf: 588547 bytes, checksum: 8ff2b3e4ab0addbdc9f3e676c8d7087b (MD5) / Made available in DSpace on 2018-05-22T21:25:45Z (GMT). No. of bitstreams: 1 DISSERTAÇÃO Ari Patrick Pereira da Costa.pdf: 588547 bytes, checksum: 8ff2b3e4ab0addbdc9f3e676c8d7087b (MD5) Previous issue date: 2017-02-23 / CNPQ / O teorema de Bell possibilita uma abordagem quantitativa de um aspecto fundamental da Mecânica Quântica, a não localidade. Uma medida frequente para a não localidade é a violação numérica de uma dada desigualdade de Bell, o que, porém, pode levar a conclusões discutíveis. Neste trabalho investigaremos a não localidade de sistemas do tipo caixa de Popescu e Rohrlich (caixa PR), estrutura hipotética que produz a máxima violação algébrica da desigualdade CHSH, acima do limite atingido pela Mecânica Quântica, sem possibilitar comunicação supraluminal. Faremos esse estudo usando uma nova medida de não-localidade chamada volume de violação. Esta recente medida de não-localidade diz para quantificar não-localidade temos que levar em conta todas as possibilidades de medição sobre um estado quântico, dado experimento de Bell específico. Julgando apenas a intensidade da violação numérica somos levados a crer que a caixa PR é mais não-local do que estados quânticos maximamente emaranhados. O conceito de volume de violação mostra que isso não é necessariamente verdade. / Bell’s theorem allows for a quantitative approach to a fundamental aspect of Quantum Mechanics, nonlocality. A frequent measure of nonlocality is the numerical violation of a given Bell inequality, which, however, can lead to questionable conclusions. In this work we will investigate the non-locality of systems like the Popescu and Rohrlich box (PR box), hypothetical structures that produce the maximum algebraic violation of the CHSH inequality, above the limit reached by Quantum Mechanics, without enabling superluminal communication. We will do this study using a new measure of non-locality called volume of violation. This recent measure of non-locality says to quantify non-locality we have to take into account all possibilities of measurement on a quantum state, given specific Bell experiment. Based only on the intensity of the numerical violation we are led to believe that the PR box is more nonlocal than maximally entangled quantum states. The concept of volume of violation shows that this is not necessarily true.

Title: Long-term underwater stays matters. Objective: The aim of this thesis is to compile the issue of long-term underwater stays from their preparation to safe descent and their transfer to a real project. Methods: On the basis of research of diving literature on the given topic thoroughly make preparations together with pilot experiments. Then implement, secure and evaluate the One week project as a long-term underwater stay lasting 7 days. Use interviews with participants to get necessary information for adequate preparation and feedback. Results: With the help of professional literature, we managed to prepare, secure and realize a long-term underwater stay in the planned duration of 7 days. The domestic record was thus humbled. Keywords: aquanaut, bell, habitat

Boston University. University Professors Program Senior theses. / PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you. / 2031-01-02

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The Good Villain is the first 100 pages of a novel in progress. The novel is a parody of the biography genre and a satire of American culture, specifically Southern American culture. The biographer, David Johnson, travels to Starkville, Mississippi to interview and interrogate fictional author, Avis James, and his friends and family. The critical introduction of the same name describes how authors Lewis Carroll, Edgar Allan Poe, and Vladimir Nabokov have influenced the novel in terms of the whimsical, the grotesque, and the humorous.

Bell's theory of nonlocality in quantum mechanics allows for interesting correlations between separated parties. In this scenario, both parties share a quantum state and measure it to obtain a classical value. Through entanglement, the results of the measurement from one party can affect the results of the other party's measurement. Quantum correlations reflect this idea as a probability distribution p(ab|xy) based on the measurements used (x for Alice and y for Bob) and the respective results obtained (a and b). In this thesis, we introduce an expression that limits what quantum states could be used to generate a given quantum correlation. This, in turn, yields a lower bound on the dimension needed for this quantum state. For a quantum correlation p(ab|xy), the dimension of the quantum state acts as a resource needed to generate it. Thus, having a bound on the dimension helps one to quantify the resources needed to generate a given correlation. In addition to quantum correlations, we adjust the bound to work with classical correlations as well, which are correlations generated using a shared probability distribution instead of a quantum state. We apply our quantum and classical bounds to well-studied correlations to test them based on known results and also generate randomly generated correlations to better understand their behavior. Finally, we report on our numerical findings. / Master of Science / In quantum theory, the state of a quantum object, the simplest known as a qubit, can be manipulated from two or more different physical locations, even when they are not connected through any type of network. This is known as Bell's theory, and it allows for interesting behavior involving two or more separated locations that would not be possible otherwise. However, the minimum amount of resources needed for certain behaviors may be unknown. In this thesis, we present a lower bound on the quantum resources needed in such a scenario. We also apply it to the classical case and test our bounds on well-studied and randomized examples and report on our findings.

Kolokol: Spectres of the Russian Bell, submitted by Jason Kaminski in fulfilment of the requirements of PhD (Humanities and Social Sciences) candidature at the University of Technology, Sydney, is an interpretative history of Russian bells (kolokola) and bell music (zvon). As a cultural object and sign, the Russian bell is associated with ideas of transcendence, and ideological and creative ‘vision.’ This interpretation of the signification of the kolokol as a sign arises directly from the perception that the bell is essentially a physical (anthropomorphic) body that is capable of ‘projecting’ or ‘transcending’ itself in the form of a spectrum. This essential ‘spectrality’ defines a history of the Russian bell as an instrument of magical, spiritual and religious ritual, as a cultural artefact associated with changing ideological movements (paganism, Christianity and communism) and as a sign represented synaesthetically in image, sound and text. Ethnographic and campanological studies observe that the kolokol ‘reflects Russian social history like a mirror’, representing the ‘voice of God’ or Logos as an aural or ‘singing’ icon, pointing to the primordial origins of language. This dissertation further investigates the idea that the kolokol acts as an ‘acoustical mirror’ and ‘ideological apparatus’: a medium or spectre through which Russian history and culture is interpellated and reflected. The various logical streams (storytelling, legend, script, text, song, cultural theory, philosophy and ethnography) that contribute to this dissertation form a textual ‘polyphony’ through which the essential meanings and ‘personae’ of the kolokol as a cultural object are interpreted. The bell is regarded as presenting an enigma of signification that must be resolved through investigation and definition. The thesis concludes that the kolokol acts as an iconic sign of the creative ‘Word’ (Logos) and as a symbolic sign that implies a ‘bridge’, copula or psychic ‘hook’, articulating the relationship between the cosmos and consciousness, the material and spiritual, the real and imaginary. Keywords: Russia, Russian History, Russian Arts, Russian Music, Russian Poetry, Russian Political History, Russian Orthodoxy, Russian Revolution, Bell-founding, Bell Music, Bell-ringing, Campanology, Iconology, Kolokol, Zvon. Word-count: 82,250 (excluding endnotes) 98,300 (including endnotes).

L'objectif de ce travail de recherche est l'étude des posibilités offertes par une nouvelle approche de l'information quantique basée sur des variables quantiques continues. Lorsque ces variables continues sont portées par le champs éléctromagnétique, un grand nombre de protocoles d'information quantique peuvent être implémentés à l'aide de lasers et d'éléments d'optique linéaire standards. Cette simplicité expérimentale rend cette approche très intéressantes d'un point de vue pratique, en particulier pour le développement des futurs réseaux de communications quantiques. Le travail peut se diviser en deux parties complémentaires. Dans la première partie, plus fondamentale, la relation complexe qui existe entre l'intrication et la nonlocalité de la mécanique quantique est étudiée sur base des variables optiques continues. Ces deux ressources étant essentielles pour l'information quantique, il est nécessaire de bien les comprendre et de bien les caractériser. Dans la seconde partie, orientée vers des applications concrètes, le problème de la correction d'erreur à variables continues est étudié. Pouvoir transmettre et manipuler l'information sans erreurs est nécessaire au bon développemnent de l'information quantique, mais, en pratique, les erreurs sont inévitables. Les codes correcteurs d'erreurs permettent de détecter et corriger ces erreures de manière efficace.

Kolokol: Spectres of the Russian Bell, submitted by Jason Kaminski in fulfilment of the requirements of PhD (Humanities and Social Sciences) candidature at the University of Technology, Sydney, is an interpretative history of Russian bells (kolokola) and bell music (zvon). As a cultural object and sign, the Russian bell is associated with ideas of transcendence, and ideological and creative ‘vision.’ This interpretation of the signification of the kolokol as a sign arises directly from the perception that the bell is essentially a physical (anthropomorphic) body that is capable of ‘projecting’ or ‘transcending’ itself in the form of a spectrum. This essential ‘spectrality’ defines a history of the Russian bell as an instrument of magical, spiritual and religious ritual, as a cultural artefact associated with changing ideological movements (paganism, Christianity and communism) and as a sign represented synaesthetically in image, sound and text. Ethnographic and campanological studies observe that the kolokol ‘reflects Russian social history like a mirror’, representing the ‘voice of God’ or Logos as an aural or ‘singing’ icon, pointing to the primordial origins of language. This dissertation further investigates the idea that the kolokol acts as an ‘acoustical mirror’ and ‘ideological apparatus’: a medium or spectre through which Russian history and culture is interpellated and reflected. The various logical streams (storytelling, legend, script, text, song, cultural theory, philosophy and ethnography) that contribute to this dissertation form a textual ‘polyphony’ through which the essential meanings and ‘personae’ of the kolokol as a cultural object are interpreted. The bell is regarded as presenting an enigma of signification that must be resolved through investigation and definition. The thesis concludes that the kolokol acts as an iconic sign of the creative ‘Word’ (Logos) and as a symbolic sign that implies a ‘bridge’, copula or psychic ‘hook’, articulating the relationship between the cosmos and consciousness, the material and spiritual, the real and imaginary. Keywords: Russia, Russian History, Russian Arts, Russian Music, Russian Poetry, Russian Political History, Russian Orthodoxy, Russian Revolution, Bell-founding, Bell Music, Bell-ringing, Campanology, Iconology, Kolokol, Zvon. Word-count: 82,250 (excluding endnotes) 98,300 (including endnotes).