Results 21 to 30 of about 13,864,114 (205)
Boundary effects in quantum field theory
Physical Review D, 1979 Electromagnetic and scalar fields are quantized in the region near an arbitrary smooth boundary, and the renormalized expectation value of the stress-energy tensor is calculated. The energy density is found to diverge as the boundary is approached.
Deutsch, D, Candelas, P
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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
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Boundary quantum field theories with infinite resonance states [PDF]
Nuclear Physics B, 2002 18 pages, 11 figures, LATEX ...
Mosconi, P., Mussardo, G., Riva, V.
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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
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Quantum statistical correlations in thermal field theories: Boundary effective theory [PDF]
Physical Review D, 2010 We show that the one-loop effective action at finite temperature for a scalar field with quartic interaction has the same renormalized expression as at zero temperature if written in terms of a certain classical field $ϕ_c$, and if we trade free propagators at zero temperature for their finite-temperature counterparts.
Moreira, André Bessa +3 more
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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
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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.
DOREY P +3 more
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Complexity in the presence of a boundary
Journal of High Energy Physics, 2020 The effects of a boundary on the circuit complexity are studied in two dimensional theories. The analysis is performed in the holographic realization of a conformal field theory with a boundary by employing different proposals for the dual of the ...
Paolo Braccia +2 more
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Some boundary effects in quantum field theory [PDF]
Physical Review D, 2004 We have constructed a quantum field theory in a finite box, with periodic boundary conditions, using the hypothesis that particles living in a finite box are created and/or annihilated by the creation and/or annihilation operators, respectively, of a quantum harmonic oscillator on a circle.
Bezerra, V. B., Rego-Monteiro, M. A.
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Duality and transport for supersymmetric graphene from the hemisphere partition function
Journal of High Energy Physics, 2020 We use localization to compute the partition function of a four dimensional, supersymmetric, abelian gauge theory on a hemisphere coupled to charged matter on the boundary.
Rajesh Kumar Gupta +2 more
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