Results 51 to 60 of about 823,850 (316)

An inverse mass expansion for the mutual information in free scalar QFT at finite temperature

Journal of High Energy Physics, 2020
We study the entanglement entropy and the mutual information in coupled harmonic systems at finite temperature. Interestingly, we find that the mutual information does not vanish at infinite temperature, but it rather reaches a specific finite value ...
Dimitrios Katsinis, Georgios Pastras
doaj   +1 more source

Biharmonic Conformal Field Theories [PDF]

, 1995
The main result of this paper is the construction of a conformally covariant operator in two dimensions acting on scalar fields and containing fourth order derivatives. In this way it is possible to derive a class of Lagrangians invariant under conformal
Ambjorn, Antoniadis, Bluman, Boulatov, Buchbinder, Elizalde, Elizalde, Ferrari, Ferrari, Franco Ferrari, Gusynin, Harvey, Hawking, Ichinose, Jackiw, Kawasaki, Michell, Myers, Pagani, Polyakov, Stelle, Stelle, Teitelboim   +22 more
core   +2 more sources

Light scalars on cosmological backgrounds

Journal of High Energy Physics, 2018
We study the behaviour of a light quartically self-interacting scalar field ϕ on curved backgrounds that may be described with the cosmological equation state parameter w.
Tommi Markkanen
doaj   +1 more source

Global anomalies in 8d supergravity

Journal of High Energy Physics, 2022
We study gauge and gravitational anomalies of fermions and 2-form fields on eight-dimensional spin manifolds. Possible global gauge anomalies are classified by spin bordism groups Ω 9 spin BG $$ {\varOmega}_9^{\mathrm{spin}}(BG) $$ which we determine by ...
Yasunori Lee, Kazuya Yonekura
doaj   +1 more source

Structure Constants for New Infinite-Dimensional Lie Algebras of U(N+,N-) Tensor Operators and Applications [PDF]

, 2000
The structure constants for Moyal brackets of an infinite basis of functions on the algebraic manifolds M of pseudo-unitary groups U(N_+,N_-) are provided. They generalize the Virasoro and W_\infty algebras to higher dimensions.
, Bayen F, Biedenharn L C, Biedenharn L C, Biedenharn L C, Calixto M, Connes A, Dirac P A M, Dirac P A M, Fairlie D B, Fradkin E S, Fulton W, Goddard P, Hoppe J, Hoppe J, Jacobson N, Jaramillo J L, Kac V G, Kac V G, Kirillov A A, M Calixto, Madore J, Moyal J E, Wolfram S   +23 more
core   +4 more sources

Highly occupied gauge theories in 2+1 dimensions: A self-similar attractor [PDF]

Physical Review D, 2019
Motivated by the boost-invariant Glasma state in the initial stages in heavy-ion collisions, we perform classical-statistical simulations of SU(2) gauge theory in 2+1 dimensional space-time both with and without a scalar field in the adjoint ...
K. Boguslavski, A. Kurkela, T. Lappi, J. Peuron   +3 more
semanticscholar   +1 more source

The 1-loop effective potential for the Standard Model in curved spacetime

Journal of High Energy Physics, 2018
The renormalisation group improved Standard Model effective potential in an arbitrary curved spacetime is computed to one loop order in perturbation theory.
Tommi Markkanen, Sami Nurmi, Arttu Rajantie, Stephen Stopyra   +3 more
doaj   +1 more source

AdS-Wave Solutions of f(Riemann) Theories [PDF]

, 2013
We show that the recently found AdS-plane and AdS-spherical wave solutions of quadratic curvature gravity also solve the most general higher derivative theory in D-dimensions. More generally, we show that the field equations of such theories reduce to an
Gurses, Metin, Hervik, Sigbjørn, Sisman, Tahsin Cagri, Tekin, Bayram   +3 more
core   +2 more sources

Modular forms and a generalized Cardy formula in higher dimensions [PDF]

, 2015
We derive a formula which applies to conformal field theories on a spatial torus and gives the asymptotic density of states solely in terms of the vacuum energy on a parallel plate geometry.
Edgar Shaghoulian
semanticscholar   +1 more source

Proof of dispersion relations for the amplitude in theories with a compactified space dimension

Journal of High Energy Physics, 2020
The analyticity properties of the scattering amplitude in the nonforward direction are investigated for a field theory in the manifold R 3,1 ⨂ S 1.
Jnanadeva Maharana
doaj   +1 more source