Results 1 to 10 of about 13,323,592 (307)
Critical 1- and 2-point spin correlations for the O(2) model in 3d bounded domains
Journal of High Energy Physics, 2021 We study the critical properties of the 3d O(2) universality class in bounded domains through Monte Carlo simulations of the clock model. We use an improved version of the latter, chosen to minimize finite-size corrections at criticality, with 8 ...
Alessandro Galvani +2 more
doaj +1 more source
Two point functions in defect CFTs
Journal of High Energy Physics, 2021 This paper is designed to be a practical tool for constructing and investigating two-point correlation functions in defect conformal field theory, directly in physical space, between any two bulk primaries or between a bulk primary and a defect primary ...
Christopher P. Herzog, Abhay Shrestha
doaj +1 more source
O(N) models with boundary interactions and their long range generalizations
Journal of High Energy Physics, 2020 We study the critical properties of scalar field theories in d + 1 dimensions with O(N) invariant interactions localized on a d-dimensional boundary. By a combination of large N and epsilon expansions, we provide evidence for the existence of non-trivial
Simone Giombi, Himanshu Khanchandani
doaj +1 more source
Harvesting correlations from vacuum quantum fields in the presence of a reflecting boundary
Journal of High Energy Physics, 2023 We explore correlations harvesting by two static detectors locally interacting with vacuum massless scalar fields in the presence of an infinite perfectly reflecting boundary.
Zhihong Liu, Jialin Zhang, Hongwei Yu
doaj +1 more source
Bootstrapping boundary-localized interactions
Journal of High Energy Physics, 2020 We study conformal boundary conditions for the theory of a single real scalar to investigate whether the known Dirichlet and Neumann conditions are the only possibilities.
Connor Behan +3 more
doaj +1 more source
Operator expansions, layer susceptibility and two-point functions in BCFT
Journal of High Energy Physics, 2020 We show that in boundary CFTs, there exists a one-to-one correspondence between the boundary operator expansion of the two-point correlation function and a power series expansion of the layer susceptibility.
Parijat Dey, Tobias Hansen, Mykola Shpot
doaj +1 more source
Entanglement properties of boundary state and thermalization
Journal of High Energy Physics, 2018 We discuss the regularized boundary state e−τ0H|Ba $$ {e}^{-{\tau}_0H}\Big|{\left.B\right\rangle}_a $$ on two aspects in both 2D CFT and higher dimensional free field theory.
Wu-zhong Guo
doaj +1 more source
Supersymmetric graphene on squashed hemisphere
Journal of High Energy Physics, 2021 We compute the partition function of N $$ \mathcal{N} $$ = 2 supersymmetric mixed dimensional QED on a squashed hemisphere using localization. Mixed dimensional QED is an abelian gauge theory coupled to charged matter fields at the boundary.
Rajesh Kumar Gupta +2 more
doaj +1 more source
Conformal boundary conditions, loop gravity and the continuum
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 +1 more source
Quantum radiation by an Unruh-DeWitt detector in oscillatory motion
Journal of High Energy Physics, 2017 Quantum radiated power emitted by an Unruh-DeWitt (UD) detector in linear oscillatory motion in (3+1)D Minkowski space, with the internal harmonic oscillator minimally coupled to a massless scalar field, is obtained non-perturbatively by numerical method.
Shih-Yuin Lin
doaj +1 more source