Дисертації з теми "Gauge group SU(N)"
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Vairinhos, Hélvio. "Large-N reduced models of SU(N) lattice guage theories." Thesis, University of Oxford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670101.
Повний текст джерелаBursa, Francis. "Phase transitions in SU(N) lattice gauge theory." Thesis, University of Oxford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437179.
Повний текст джерелаPomeroy, Neil B. "Multi-instantons and supersymmetric SU(N) gauge theories." Thesis, Durham University, 2002. http://etheses.dur.ac.uk/3757/.
Повний текст джерелаSlater, Matthew J. "Instanton effects in supersymmetric SU(N) gauge theories." Thesis, Durham University, 1998. http://etheses.dur.ac.uk/4812/.
Повний текст джерелаPickup, Thomas. "Investigating the conformal window of SU(N) gauge theories." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:79a22d60-86b2-4e53-abd6-50edbc979e42.
Повний текст джерелаGarcía, Vera Miguel Francisco. "Investigating the large N limit of SU(N) Yang-Mills gauge theories on the lattice." Doctoral thesis, Humboldt-Universität zu Berlin, 2017. http://dx.doi.org/10.18452/18123.
Повний текст джерелаIn this thesis we present results for the topological susceptibility “chi”, and investigate the property of factorization in the 't Hooft large N limit of SU(N) pure Yang-Mills gauge theory. A key component in the lattice gauge theory computation of chi is the estimation of the topological charge density correlator, which is affected by a severe signal to noise problem. To alleviate this problem, we introduce a novel algorithm that uses a multilevel type approach to compute the correlation function of observables smoothed with the Yang-Mills gradient flow. When applied to our observables, the results show an scaling of the error which is better than the one of standard Monte-Carlo simulations. We compute the topological susceptibility in the pure Yang-Mills gauge theory for the gauge groups with N = 4, 5, 6 and three different lattice spacings. In order to deal with the freezing of topology, we use open boundary conditions. In addition, we employ the theoretically sound definition of the topological charge density through the gradient flow. Our final result in the limit N to infinity, represents a new quality in the verification of the Witten-Veneziano formula. Lastly, we use the lattice formulation to verify the factorization of the expectation value of the product of gauge invariant operators in the large N limit. We work with Wilson loops smoothed with the Yang-Mills gradient flow and simulations up to the gauge group SU(8). The large N extrapolations at finite lattice spacing and in the continuum are compatible with factorization. Our data allow us not only to verify factorization, but also to test the 1/N scaling up to very high precision, where we find it to agree very well with a quadratic series in 1/N as predicted originally by 't Hooft for the case of the pure Yang-Mills gauge theory.
Tighe, John Francis. "Derivative expansions of the exact renormalisation group and SU(NN) gauge theory." Thesis, University of Southampton, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368120.
Повний текст джерелаCOCCIA, LORENZO. "On the planar limit of 3d T_rho^sigma[SU(N)] theories." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/364338.
Повний текст джерелаIn this thesis we discuss a limit of 3d T^sigma _rho[SU(N)] quiver gauge theories in which the number of nodes is large and the ranks scale quadratically with the length of the quiver. The sphere free energies and topologically twisted indices are obtained using supersymmetric localization. Both scale quartically with the length of the quiver and quadratically with $N$, with trilogarithm functions depending on the quiver data as coefficients. Previously discussed theories with $N^2 \ln N$ scaling arise as limiting cases. The IR SCFTs have well-behaved supergravity duals in Type IIB: the free energies match precisely with holographic results and the indices, in case of a universal twist, correctly reproduce the entropy of an universal black hole which can be embedded in the holographically dual solutions. Each balanced 3d quiver theory is linked to a 5d parent, whose matrix model is related and dominated by the same saddle point, leading to close relations between BPS observables. In particular, we compute the expectation value of Wilson loops in antisymmetric representations, finding perfect agreement with the gravity side in a particular example.
Liebgott, Paulo Juliano. "Monopolos magnéticos Z2 em teorias de Yang-Mills-Higgs com simetria de gauge SU(n)." Florianópolis, SC, 2009. http://repositorio.ufsc.br/xmlui/handle/123456789/93224.
Повний текст джерелаMade available in DSpace on 2012-10-24T18:37:40Z (GMT). No. of bitstreams: 1 263132.pdf: 526017 bytes, checksum: 5840fcf1dc0e49a55cf108092da716f2 (MD5)
Monopolos magnéticos têm sido objetos de grande interesse nos últimos anos, principalmente por serem previstos em algumas teorias de grande unificação e por, possivelmente, serem relevantes no fenômeno do confinamento em QCD. Consideramos uma teoria de Yang-Mills-Higgs com simetria de gauge SU(n) quebrada espontaneamente em SO(n) que apresenta condições topológicas necessárias para a existência de monopolos Z2. Construímos as formas assintóticas desses monopolos, considerando duas quebras distintas do SU(n) em SO(n), e verificamos que os monopolos fundamentais estão associados aos pesos da representação definidora da álgebra so(n)v.
Sommer, Rainer [Gutachter], Ulrich [Gutachter] Wolff, and Biagio [Gutachter] Lucini. "Investigating the large N limit of SU(N) Yang-Mills gauge theories on the lattice / Gutachter: Rainer Sommer, Ulrich Wolff, Biagio Lucini." Berlin : Humboldt-Universität zu Berlin, 2017. http://d-nb.info/1189328984/34.
Повний текст джерелаHöhne, Stephan. "An effective D-brane action in quantized anti de Sitter space and the local renormalization group of N=1 supersymmetric gauge theories." Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-88718.
Повний текст джерелаHöhne, Stephan. "An effective d-brane action in quantized Anti de Sitter Space and the local renormalization group of N=1 supersymmetric gauge theories." kostenfrei, 2008. http://edoc.ub.uni-muenchen.de/8871/.
Повний текст джерелаJezo, Tomas. "Z' and W' gauge bosons in SU(2)xSU(2)xU(1) models : Collider phenomenology at LO and NLO QCD." Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENY071/document.
Повний текст джерелаGeneral SU(2)x SU(2)x U(1) models represent a well-motivated intermediate step towards the unication of the Standard Model (SM) gauge groups. Extended gauge group sector, as compared to that of the SM, leads to additional neutral and charged gauge bosons. These so-called Z' and W' bosons are actively searched for at the Large Hadron Collider (LHC). Based on a recent global analysis of low-energy and LEP constraints of these models, we perform numerical scans of their various signals at the LHC at Leading Order accuracy. We show that total cross sections for lepton and third-generation quark pairs, while experimentally easily accessible, provide individually only partial information about the model realized in Nature. In contrast, correlations of these cross sections in the neutral and charged current channels may well lead to a unique identification. Subsequently we study the electroweak top-pair production at Next-to-leading Order (NLO) accuracy in the SM extensions with an additional Z' boson assuming general flavour-diagonal couplings. We calculate the virtual and real corrections at order O(alS*alW^2) and implement them in the POWHEG BOX framework which allows for consistent matching of NLO QCD calculations with parton showers. We find that the NLO corrections can be very important but the K-factors in the invariant mass region around the resonance mass are modest
Katona, Gregory. "Field Theoretic Lagrangian From Off-Shell Supermultiplet Gauge Quotients." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5958.
Повний текст джерелаPh.D.
Doctorate
Physics
Sciences
Physics
Necco, Silvia. "The static quark potential and scaling behavior of SU(3) lattice Yang-Mills theory." Doctoral thesis, [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=96870672X.
Повний текст джерелаSilveira, Hector Bessa. "Formas triangulares para sistemas não-lineares com duas entradas e controle de sistemas sem arrasto em SU(n) com aplicações em mecânica quântica." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/3/3139/tde-13082010-163547/.
Повний текст джерелаThis thesis treats two distinct and independent problems: triangularization of nonlinear systems with two inputs and control of driftless systems which evolve on the special unitary group SU(n). Concerning the first, one has established, by means of the generalization of well-known results, geometric conditions for a system with two inputs to be described by a specific triangular form after a change of coordinates and a regular static state feedback. For the second problem, one has developed a control strategy that forces the state of the system to track in an asymptotic manner a periodic reference trajectory which passes by an arbitrary goal state. The proposed control method uses Lyapunovlike convergence results that were established in this research and which were inspired in a periodic version of LaSalles invariance principle. Furthermore, one has shown the simulation results obtained from the application of the developed control technique to a quantum system consisting of two spin-1/2 particles, with the aim of generating the C-NOT quantum logic gate.
Falcone, Rossella, Alessandro Papa, and Giovanni Falcone. "Study of SU(N) gauge theories on the lattice." Thesis, 2006. http://hdl.handle.net/10955/692.
Повний текст джерелаHöhne, Stephan [Verfasser]. "An effective D-brane action in quantized anti de Sitter space and the local renormalization group of N=1 supersymmetric gauge theories / vorgelegt von Stephan Höhne." 2008. http://d-nb.info/990091457/34.
Повний текст джерела