Browsing Pure & Applied Mathematics by Title
Now showing items 361-380 of 390
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Tachyon condensation and universality of DBI action
(Institute of Physics, 2001)We show that a low-energy action for massless fluctuations around a tachyonic soliton background representing a codimension one D-brane coincides with the Dirac-Born-Infeld action. The scalar modes which describe transverse ... -
Temperature quantization from the TBA equations
(2009)We analyze the Thermodynamic Bethe Ansatz equations for the mirror model which determine the ground state energy of the light-cone AdS5?S5 [ <mml:msub><mml:mi mathvariant="normal">AdS</mml:mi><mml:mn>5</mml:mn></mml:msub ... -
Testing universality and automatic O(a) improvement in massless lattice QCD with Wilson quarks
(Proceedings of Science, 2010)The chirally rotated Schrodinger functional provides a test bed for universality and automatic O(a) improvement. We here report on extensive quenched simulations of lattice QCD with Wilson quarks in the massless limit. ... -
Tetrahedral and cubic monopoles
(Springer Science + Business Media, 1996)Using a numerical implementation of the ADHMN construction, we compute the fields and energy densities of a charge three monopole with tetrahedral symmetry and a charge four monopole with octahedral symmetry. We then ... -
The radiation bound for a Klein-Gordon field on a static spherical spacetime
(Trinity College (Dublin, Ireland). School of Mathematics, 2013)We establish a well-posed Cauchy problem in Minkowski (R4, η), associated with a radiating Klein-Gordon field ψ(x) = eztψ(xi), in curvature coordinates {xμ = t, p, θ,Φ} on a static spherically symmetric spacetime (M, g). ... -
Thermodynamic Bethe Ansatz for the AdS_5 x S^5 Mirror Model
(2009)We use the string hypothesis for the mirror theory to derive the Thermodynamic Bethe Ansatz equations for the AdS5 ? S5 mirror model. We further demonstrate how these equations can be used to construct the associated ... -
Three-point correlators of stress tensors in maximally-supersymmetric conformal theories in d = 3 and d = 6
(Elsevier, 2000)We consider free superconformal theories of N = 8 scalar multiplet in d = 3 and (2, 0) tensor multiplet in d = 6 and compute 2-point and 3-point correlators of their stress tensors. The results for the 2-point and the ... -
Three-point Green function of the stress-energy tensor in the AdS/CFT correspondence
(Institute of Physics, 1999)We compute the three-point function of the stress-energy tensor in d-dimensional conformal field theory CFT from AdSd11 gravity. For d54 the coefficients of the three linearly independent conformally covariant forms ... -
Toward the excited meson spectrum of dynamical QCD
(2010)We present a detailed description of the extraction of the highly excited isovector meson spectrum on dynamical anisotropic lattices using a new quark-field construction algorithm and a large variational basis of operators. ... -
Towards Excited Radiative Transitions in Charmonium
(Trinity College Dublin. School of Mathematics. Discipline of Pure & Applied Mathematics, 2019)In this thesis lattice QCD is utilised to investigate the spectrum of charmonium and charmed mesons with the aim of working towards investigating radiative transitions between excited states in the charmonium spectrum. ... -
Towards Integrability of Topological Strings I: Three Froms on Calabi-
(2004)The precise relation between Kodaira-Spencer path integra l and a particular wave function in seven dimensional quadratic field theory is esta blished. The special properties of three-forms in 6d, as well as Hitchin?s ... -
TT deformations of non-relativistic models
(2021)The light-cone gauge approach to TT¯¯¯¯ deformed models is used to derive the TT¯¯¯¯ deformed matrix nonlinear Schrödinger equation, the Landau-Lifshitz equation, and the Gardner equation. Properties of one-soliton solutions ... -
Tuning anisotropies for dynamical gauge configurations
(SISSA, 2005)We present methods and results for the tuning of quark and gluon anisotropies for improved actions in Nf = 2 QCD. -
Tuning for criticality: A new hypothesis for sleep
(MIT, 2009)We propose that the critical function of sleep is to prevent uncontrolled neuronal feedback while allowing rapid responses and prolonged retention of short-term memories. Through learning, the brain is tuned to react ... -
Two-dimensional gauge theories and quantum integrable systems
(2008)In this paper the relation between 2d topological gauge theo ries and Bethe Ansatz equations is reviewed. 1 In addition we present some new results and clarifications. W e hope the relations discussed here are ... -
Uniform light-cone gauge for strings in AdS(5) x s**5: Solving SU(1|1) sector.
(2006)We introduce a uniform light-cone gauge for strings propagating in AdS5 ?S5 space-time. We use the gauge to analyze strings from the su(1|1) sector, and show that the reduced model is described by a quadratic action for ...
