Results 41 to 50 of about 791,258 (282)

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

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

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

Odd dimensional nonlocal Liouville conformal field theories

Journal of High Energy Physics, 2022
We construct Euclidean Liouville conformal field theories in odd number of dimensions. The theories are nonlocal and non-unitary with a log-correlated Liouville field, a Q $$ \mathcal{Q} $$ -curvature background, and an exponential Liouville-type ...
Amitay C. Kislev, Tom Levy, Yaron Oz
doaj   +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

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

Modular Hamiltonian of the scalar in the semi infinite line: dimensional reduction for spherically symmetric regions

Journal of High Energy Physics, 2023
We focus our attention on the one dimensional scalar theories that result from dimensionally reducing the free scalar field theory in arbitrary d dimensions.
Marina Huerta, Guido van der Velde
doaj   +1 more source

BPS solitons in Lifshitz field theories

, 2010
Lorentz-invariant scalar field theories in d+1 dimensions with second-order derivative terms are unable to support static soliton solutions that are both finite in energy and stable for d>2, a result known as Derrick's theorem.
A. M. Polyakov, Archil Kobakhidze, E. B. Bogomol’nyi, G. Parisi, Jayne E. Thompson, Raymond R. Volkas   +5 more
core   +1 more source

Nonperturbative bounds on scattering of massive scalar particles in d ≥ 2

Journal of High Energy Physics, 2022
We study two-to-two scattering amplitudes of a scalar particle of mass m. For simplicity, we assume the presence of ℤ2 symmetry and that the particle is ℤ2 odd.
Hongbin Chen, A. Liam Fitzpatrick, Denis Karateev   +2 more
doaj   +1 more source