Dissertationen zum Thema „Transitions de phase cosmologiques“
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BORGHINI, NICOLAS. „Sur certaines implications cosmologiques de la transition de phase quark-hadron“. Paris 6, 1999. http://www.theses.fr/1999PA066069.
Der volle Inhalt der QuelleFaure, Rémi. „Neutrinos, cosmological phase transitions and the matter-antimatter asymmetry of the Universe“. Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASP081.
Der volle Inhalt der QuelleThe baryon asymmetry in our Universe is an unsolved problem in cosmology. A popular approach for explaining it is leptogenesis with sterile neutrinos, which are particles motivated in order to explain the masses of active neutrinos in the Standard Model. It is possible to include in these scenarios a cosmological phase transition which gives rise to the sterile neutrino masses. This idea is phenomenologically interesting, as such a phase transition could produce detectable gravitational waves. At the temperature T of the phase transition, sterile neutrinos acquire a mass M. Two mechanisms are considered. For non-relativistic sterile neutrinos M>T, deviating from equilibrium due to the phase transition, they will quickly decay and produce a lepton asymmetry. The rapidity of the phase transition allows a larger sterile neutrino population than in usual scenarios and enhances the created asymmetry. Numerical analyses describe the successful regions in parameter space for leptogenesis. For relativistic sterile neutrinos M
Florakis, Ioannis. „Théorie des Cordes et Applications Phénoménologiques et Cosmologiques“. Phd thesis, Université Pierre et Marie Curie - Paris VI, 2011. http://tel.archives-ouvertes.fr/tel-00607408.
Der volle Inhalt der QuelleWerner, Philipp. „Dissipative quantum phase transitions /“. Zürich, 2005. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16134.
Der volle Inhalt der QuellePalmer, David Cristopher. „Phase transitions in leucite“. Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357876.
Der volle Inhalt der QuelleFliegans, Olivier. „Phase transitions in "small" systems“. [S.l. : s.n.], 2001. http://www.diss.fu-berlin.de/2001/93/index.html.
Der volle Inhalt der QuelleRowley, Stephen Edward. „Quantum phase transitions in ferroelectrics“. Thesis, University of Cambridge, 2011. https://www.repository.cam.ac.uk/handle/1810/252224.
Der volle Inhalt der QuelleOukouiss, Abdelkarim. „Phase transitions in ferromagnetic fluids“. Doctoral thesis, Universite Libre de Bruxelles, 1999. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211920.
Der volle Inhalt der QuelleCasson, Brian Derek. „Phase transitions in surfactant monolayers“. Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300797.
Der volle Inhalt der QuelleFairhurst, David John. „Polydispersity in colloidal phase transitions“. Thesis, University of Edinburgh, 1999. http://hdl.handle.net/1842/1496.
Der volle Inhalt der QuelleDelivorias, Nikitas Alex. „Cosmic structure from phase transitions“. Thesis, Durham University, 1997. http://etheses.dur.ac.uk/4702/.
Der volle Inhalt der QuelleStow, Simon John. „Phase transitions in relativistic systems“. Thesis, Royal Holloway, University of London, 1985. http://repository.royalholloway.ac.uk/items/e6332754-d6f0-4d29-8960-dc05a5ca3390/1/.
Der volle Inhalt der QuelleFedorenko, T. O. „First-order magnetic phase transitions“. Thesis, Сумський державний університет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/34842.
Der volle Inhalt der QuelleLittlewort, G. C. „Phase transitions in neural networks“. Master's thesis, University of Cape Town, 1986. http://hdl.handle.net/11427/7617.
Der volle Inhalt der QuelleOuali, Taoufik. „Méthode cosmologique pour la détermination de la masse de Higgs“. Montpellier 2, 1990. http://www.theses.fr/1990MON20046.
Der volle Inhalt der QuelleXu, Hui. „Phase structure and phase transitions in semicrystalline isotactic polystyrene /“. Thesis, Connect to Dissertations & Theses @ Tufts University, 2005.
Den vollen Inhalt der Quelle findenAdviser: Peggy Cebe. Submitted to the Dept. of Physics. Includes bibliographical references. Access restricted to members of the Tufts University community. Also available via the World Wide Web;
Monceau, Pascal. „TRANSITIONS DE PHASE EN DIMENSIONS FRACTALES“. Habilitation à diriger des recherches, Université Paris-Diderot - Paris VII, 2004. http://tel.archives-ouvertes.fr/tel-00521313.
Der volle Inhalt der QuelleMadamba, Maria Cecilia S. „Phase transitions in superionic PbSnF¦4“. Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ39072.pdf.
Der volle Inhalt der QuelleChen, Leiming. „Tilt phase transitions in disordered systems /“. view abstract or download file of text, 2006. http://proquest.umi.com/pqdweb?did=1251884301&sid=1&Fmt=2&clientId=11238&RQT=309&VName=PQD.
Der volle Inhalt der QuelleTypescript. Includes vita and abstract. Includes bibliographical references (leaves 126-128). Also available for download via the World Wide Web; free to University of Oregon users.
Jones, Nicholaos John. „Ineliminable idealizations, phase transitions, and irreversibility“. Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1163026373.
Der volle Inhalt der QuelleLidmar, Jack. „Phase transitions in high-temperature superconductors“. Doctoral thesis, Stockholm : Tekniska högsk, 1998. http://www.lib.kth.se/abs99/lidm0111.pdf.
Der volle Inhalt der QuelleLi, Su. „Phase transitions of high temperature superconductors“. College Park, Md. : University of Maryland, 2007. http://hdl.handle.net/1903/7276.
Der volle Inhalt der QuelleThesis research directed by: Physics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Nikas, Yvonne Jiang. „Topics in phase transitions at interfaces“. Connect to resource, 1989. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1232732921.
Der volle Inhalt der QuelleGiddy, Andrew Peter. „Computational studies of structural phase transitions“. Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239582.
Der volle Inhalt der QuelleDe, Dombal Richard Francis. „Phase transitions in nepheline and tridymite“. Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239792.
Der volle Inhalt der QuelleFerreira, Pedro Tonnies Gil. „Observational consequences of cosmological phase transitions“. Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338692.
Der volle Inhalt der QuelleKarra, Glykeria. „Production of defects at phase transitions“. Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298337.
Der volle Inhalt der QuelleLarsson, Sebastian E. „Topological defects from cosmological phase transitions“. Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298309.
Der volle Inhalt der QuelleAdams, Jennifer Anne. „Cosmological phase transitions : techniques and phenomenology“. Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306935.
Der volle Inhalt der QuelleSwift, Michael Robert. „Surface phase transitions in novel geometries“. Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279938.
Der volle Inhalt der QuelleHook, Daniel William. „Phase transitions in quantum microcanonical equilibrium“. Thesis, Imperial College London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.497906.
Der volle Inhalt der QuelleMeier, Hannes. „Superfluid Phase Transitions in Disordered Systems“. Licentiate thesis, KTH, Statistisk fysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-50051.
Der volle Inhalt der QuelleQC 20111206
Zarikas, Vasilios. „Aspects of early universe phase transitions“. Thesis, University of Newcastle Upon Tyne, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318257.
Der volle Inhalt der QuelleBraun, Frank Nicholas. „Surface phase transitions in liquid crystals“. Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242564.
Der volle Inhalt der QuelleGelb, Lev. „Theoretical studies of surface phase transitions“. Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387600.
Der volle Inhalt der QuelleGambhir, Manoj. „Models of phase transitions in silicates“. Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624645.
Der volle Inhalt der QuelleSpalek, Leszek Jedrzej. „Emergent phenomena near selected phase transitions“. Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608135.
Der volle Inhalt der QuelleDiener, Jacobus Petrus Willem. „Ferromagnetic phase transitions in neutron stars“. Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/71982.
Der volle Inhalt der QuelleENGLISH ABSTRACT: We consider the ferromagnetic phase in pure neutron matter as well as charge neutral, betaequilibrated nuclear matter. We employ Quantum Hadrodynamics, a relativistic field theory description of nuclear matter with meson degrees of freedom, and include couplings between the baryon (proton and neutron) magnetic dipole moment as well as between their charge and the magnetic field in the Lagrangian density describing such a system. We vary the strength of the baryon magnetic dipole moment till a non-zero value of the magnetic field, for which the total energy density of the magnetised system is at a minimum, is found. The system is then assumed to be in the ferromagnetic state. The ferromagnetic equation of state is employed to study matter in the neutron star interior. We find that as the density increases the ferromagnetic field does not increase continuously, but exhibit sudden rapid increases. These sudden increases in the magnetic field correspond to shifts between different configurations of the charged particle’s Landau levels and can have significant observational consequences for neutron stars. We also found that although the ferromagnetic phase softens the neutron star equation of state it does not significantly alter the star’s massradius relationship. The properties of magnetised symmetric nuclear matter were also studied. We confirm that magnetised matter tends to be more proton-rich but become more weakly bound for stronger magnetic fields. We show that the behaviour of the compressibility of nuclear matter is influenced by the Landau quantisation and tends to have an oscillatory character as it increases with the magnetic field. The symmetry energy also exhibits similar behaviour.
AFRIKAANSE OPSOMMING: In hierdie studie het ons die ferromagnetiese fase in suiwer neutronmaterie, sowel as in ladingsneutrale, beta-ge¨ekwilibreerde neutronstermaterie, ondersoek. Vir die doeleindes het ons die Kwantum Hadrodinamika-model van kernmaterie gebruik. Dit is ’n relatiwistiese, veldteoretiese model wat mesone inspan om die interaksies tussen die protone en neutrone te bemiddel. Om die impak van die magneetveld te bestudeer, sluit ons ’n koppeling tussen die barioonlading en die magneetveld, asook barioondipoolmoment en die magneetveld, in by die Lagrange digtheid wat ons sisteem beskryf. Om die ferromagnetiese fase te ondersoek, varieer ons die sterkte van die barioondipoolmoment om ’n nie-nul waarde van die magneetveld wat energie digtheid sal minimeer te vind. Die ferromagnetiese toestandsvergelyking word toegepas op materie aan die binnekant van die neutronster en die impak hiervan op die waarneembare eienskappe van die ster word ondersoek. Ons vind dat die ferromagnetiese magneetveld nie kontinu toeneem soos die digtheid verhoog nie. Die skielike toenames in die magneetveld is die gevolg van die sisteem wat die konfigurasie van die gelaaide deeltjies se Landau-vlakke skielik verander en dit kan beduidende waarneembare gevolge vir die ster inhou. Ons vind ook dat die ferromagnetiese fase die toestandsvergelyking versag, maar dat die versagting die massa-radius verhouding van die ster nie grootliks beïnvloed nie. Die eienskappe van gemagnetiseerde kernmaterie word ook ondersoek. Ons bevestig dat gemagnetiseerde materie meer proton-ryk, maar minder sterk gebind word. Ons wys dat die saampersbaarheid van kernmaterie deur die teenwoordigheid van Landau-vlakke beïnvloed word en ossilerend saam met die magneetveld toeneem. Die simmetrie-energie manifesteer ook soortgelyke gedrag.
Saunders, Timothy E. „Phase transitions in geometrically frustrated antiferromagnets“. Thesis, University of Oxford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670121.
Der volle Inhalt der QuelleMagou, Maria. „Holographic descriptions of chiral phase transitions“. Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/345723/.
Der volle Inhalt der QuelleLusk, Mark T. Knowles James K. „Martensitic phase transitions with surface effects /“. Diss., Pasadena, Calif. : California Institute of Technology, 1992. http://resolver.caltech.edu/CaltechETD:etd-11052004-161432.
Der volle Inhalt der QuelleCuvelier, Pierre. „Transitions de phase des cristaux plastiques“. Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb375969616.
Der volle Inhalt der QuelleBailey, Delbert D. „Phase transitions of boolean satisfiability variants /“. Diss., Digital Dissertations Database. Restricted to UC campuses, 2004. http://uclibs.org/PID/11984.
Der volle Inhalt der QuelleCortés, Huerto Robinson. „Phase transitions in many-electron systems“. Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527673.
Der volle Inhalt der QuelleRizzi, Matteo. „Quantum Phase transitions in Hubbard lattices“. Doctoral thesis, Scuola Normale Superiore, 2007. http://hdl.handle.net/11384/85848.
Der volle Inhalt der QuelleOrús, Lacort Román. „Entanglement, quantum phase transitions and quantum algorithms“. Doctoral thesis, Universitat de Barcelona, 2006. http://hdl.handle.net/10803/482202.
Der volle Inhalt der QuelleDesde las pioneras ideas de Feynman hasta el día de hoy, la información y computación cuánticas han evolucionado de forma veloz. Siendo la mecánica cuántica en sus orígenes considerada esencialmente como un marco teórico en el que poder explicar ciertos procesos fundamentales que acontecían en la Naturaleza, fue durante los años 80 y 90 cuando se empezó a pensar sobre el comportamiento intrínsecamente cuántico del mundo en el que vivimos como una herramienta con la que poder desarrollar tecnologías de la información más potentes, basadas en los mismos principios de la física cuántica. Tal y como Landauer dijo, la información es física, por lo que no debe en absoluto extrañarnos el que se intentara comulgar la mecánica cuántica con la teoría de la información. Y nada más lejos de la realidad, pues pronto se vio que era posible utilizar las leyes de la física cuántica para realizar tareas inconcebibles desde un punto de vista clásico. Por ejemplo, el descubrimiento de la teleportación, la codificación superdensa, la criptografía cuántica, el algoritmo de factorización de Shor o el algoritmo de búsqueda de Grover, constituyen algunos de los logros remarcables que han atraído la atención de mucha gente, dentro y fuera de la ciencia. Queda la información cuántica, pues, constituida como un campo genuinamente pluridisciplinar, en el que se concentran investigadores provenientes de diferentes ramas de la física, las matemáticas y la ingeniería. Mientras en sus orígenes era la información cuántica quien se beneficiaba del conocimiento de otros campos, a día de hoy las herramientas desarrolladas en el marco de la teoría cuántica de la información pueden ser asimismo usadas en el estudio de problemas de diferentes áreas, como la física de muchos cuerpos o la teoría cuántica de campos. Ello es debido al estudio detallado que la información cuántica desarrolla de las correlaciones cuánticas, o entrelazamiento cuántico. Cualquier sistema físico descrito por las leyes de la mecánica cuántica se puede por lo tanto considerar bajo la perspectiva de la teoría cuántica de la información a través de la teoría del entrelazamiento.
Jia, Zhihong. „Structural modulation and phase transitions in melilites“. [S.l.] : [s.n.], 2005. http://archiv.ub.uni-marburg.de/diss/z2005/0066/.
Der volle Inhalt der QuelleKnapek, Christina. „Phase Transitions in Two-Dimensional Complex Plasmas“. Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-123271.
Der volle Inhalt der QuelleChen, Tielian. „Detection of phase transitions with acoustic resonance“. Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0020/MQ49673.pdf.
Der volle Inhalt der QuelleHines, Andrew Peter. „Entanglement, dynamical bifurcations and quantum phase transitions /“. [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19792.pdf.
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