Results 11 to 20 of about 1,558,839 (324)
Boundary terms in quantum field theory and the spin structure of QCD
Nuclear Physics B, 2014 Determining how boundary terms behave in a quantum field theory (QFT) is crucial for understanding the dynamics of the theory. Nevertheless, boundary terms are often neglected using classical-type arguments which are no longer justified in the full ...
Peter Lowdon
doaj +6 more sources
Conformal boundary conditions, loop gravity and the continuum [PDF]
Journal of High Energy Physics, 2018 In this paper, we will make an attempt to clarify the relation between three-dimensional euclidean loop quantum gravity with vanishing cosmological constant and quantum field theory in the continuum.
Wolfgang Wieland
doaj +2 more sources
On local boundary CFT and non-local CFT on the boundary [PDF]
Prog.Math.251:239-252,2007, 2004 The holographic relation between local boundary conformal quantum field theories (BCFT) and their non-local boundary restrictions is reviewed, and non-vacuum BCFT's, whose existence was conjectured previously, are constructed.Comment: 16 pages ...
C. D’Antoni +20 more
core +3 more sources
Reverse Engineering Quantum Field Theory [PDF]
AIP Conf. Proc. 1508 (2012) 428-432, 2012 An approach to the foundations of quantum theory is advertised that proceeds by "reverse engineering" quantum field theory. As a concrete instance of this approach, the general boundary formulation of quantum theory is outlined.Comment: 5 pages, LaTeX ...
Oeckl, Robert
core +2 more sources
Holographic quantum states [PDF]
Phys. Rev. Lett. 105, 260401 (2010), 2010 We show how continuous matrix product states of quantum field theories can be described in terms of the dissipative non-equilibrium dynamics of a lower-dimensional auxiliary boundary field theory.
Frank Verstraete +5 more
core +4 more sources
Boundary Quantum Field Theory on the Interior of the Lorentz Hyperboloid [PDF]
Communications in Mathematical Physics, 2012 We construct local, boost covariant boundary QFT nets of von Neumann algebras on the interior of the Lorentz hyperboloid LH = {x^2 - t^2 > R^2, x>0}, in the two-dimensional Minkowski spacetime. Our first construction is canonical, starting with a local conformal net on the real line, and is analogous to our previous construction of local boundary
Roberto Longo, Karl-Henning Rehren
openalex +8 more sources
On perturbative quantum field theory with boundary [PDF]
Nuclear Physics B, 2004 Boundary quantum field theory is investigated in the Lagrangian framework. Models are defined perturbatively around the Neumann boundary condition. The analyticity properties of the Green functions are analyzed: Landau equations, Cutkosky rules together with the Coleman-Norton interpretation are derived.
Zoltán Bajnok +2 more
openalex +6 more sources
Algebraic Quantum Field Theory on Spacetimes with Timelike Boundary [PDF]
Annales Henri Poincaré, 2018 27 pages, final version published in Annales Henri Poincar ...
Marco Benini +2 more
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Integrable quantum field theory with boundaries: the exact g-function [PDF]
Nuclear Physics B, 2004 The g-function was introduced by Affleck and Ludwig in the context of critical quantum systems with boundaries. In the framework of the thermodynamic Bethe ansatz (TBA) method for relativistic scattering theories, all attempts to write an exact integral equation for the off-critical version of this quantity have, up to now, been unsuccesful.
Patrick Dorey +3 more
openalex +7 more sources
Quantum Field Theories on Manifolds with Curved Boundaries: Scalar Fields [PDF]
Nucl.Phys. B394 (1993) 728-790, 1992 A framework allowing for perturbative calculations to be carried out for quantum field theories with arbitrary smoothly curved boundaries is described. It is based on an expansion of the heat kernel derived earlier for arbitrary mixed Dirichlet and Neumann boundary conditions.
Hugh Osborn, D. M. McAvity
arxiv +5 more sources