Results 91 to 100 of about 13,864,114 (205)
Conformal bootstrap near the edge
Journal of High Energy Physics, 2021 We propose a bootstrap program for CFTs near intersecting boundaries which form a co-dimension 2 edge. We describe the kinematical setup and show that bulk 1-pt functions and bulk-edge 2-pt functions depend on a non-trivial cross-ratio and on the angle ...
António Antunes
doaj +1 more source
Large distance expansion in the Schrödinger representation of quantum field theory [PDF]
, 1997 This thesis is concerned with an approach to Quantum Field Theory in which the states are constructed from their large distance behaviour. The logarithm of the vacuum functional is expandable as a local quantity in any quantum field theory in which the ...
Sampaio, Marcos Donizeti Rodrigues +1 more
core
Scattering in Geometric Approach to Quantum Theory
, 2022 We define inclusive scattering matrix in the framework of a geometric approach to quantum field theory. We review the definitions of scattering theory in the algebraic approach and relate them to the definitions in the geometric ...
Albert Schwarz
core +1 more source
Idealization in Quantum Field Theory [PDF]
, 1998 This paper explores various functions of idealizations in quantum field theory. To this end it is important to first distinguish between different kinds of theories and models of or inspired by quantum field theory.
Hartmann, Stephan
core +2 more sources
The O(N ) model with ϕ 6 potential in ℝ2 × ℝ+
Journal of High Energy Physics, 2020 We study the large N limit of O(N ) scalar field theory with classically marginal ϕ 6 interaction in three dimensions in the presence of a planar boundary. This theory has an approximate conformal invariance at large N .
Christopher P. Herzog, Nozomu Kobayashi
doaj +1 more source
QUANTUM FIELD THEORY FROM FIRST PRINCIPLES
, 2001 When quantum fields are studied on manifolds with boundary, the corresponding one-loop quantum theory for bosonic gauge fields with linear covariant gauges needs the assignment of suitable boundary conditions for elliptic differential operators of ...
G. ESPOSITO, ESPOSITO G
core +1 more source
Boundary reflection matrices of massive ϕ 1,3-perturbed unitary minimal models
Journal of High Energy PhysicsWe propose explicit expressions for the boundary reflection matrices of the $${\mathcal{A}}_{m}+(r, s)$$ series of massive scattering theories, obtained by perturbing the $${\mathcal{A}}_{m}$$ unitary minimal models with (r, s) boundary conditions with ...
Zoltan Bajnok +2 more
doaj +1 more source
Boundary state in an integrable quantum field theory out of equilibrium
Physics Letters B, 2014 We study a quantum quench of the mass and the interaction in the Sinh-Gordon model starting from a large initial mass and zero initial coupling. Our focus is on the determination of the expansion of the initial state in terms of post-quench excitations. We argue that the large energy profile of the involved excitations can be relevant for the late time
Sotiriadis, Spyridon +2 more
openaire +3 more sources
Identity, Superselection Theory and the Statistical Properties of Quantum Fields [PDF]
, 2012 The permutation symmetry of quantum mechanics is widely thought to imply a sort of metaphysical underdetermination about the identity of particles. Despite claims to the contrary, this implication does not hold in the more fundamental quantum field ...
Baker, David John, David John Baker
core
Journal of High Energy PhysicsWithin the framework of braneworld holography, we construct a quantum charged black hole localized on a three-dimensional anti-de Sitter (AdS) brane that intersects the asymptotic boundary of the four-dimensional AdS spacetime at the conformal defects ...
Yiji Feng +4 more
doaj +1 more source