Results 21 to 30 of about 45,528 (295)
One-loop CHY-integrand of bi-adjoint scalar theory
Journal of High Energy Physics, 2020 In this paper, the one-loop CHY-integrands of bi-adjoint scalar theory has been reinvestigated. Differing from previous constructions, we have explicitly removed contributions from tadpole and massless bubbles when taking the forward limit of ...
Bo Feng, Chang Hu
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Entanglement of harmonic systems in squeezed states
Journal of High Energy Physics, 2023 The entanglement entropy of a free scalar field in its ground state is dominated by an area law term. It is noteworthy, however, that the study of entanglement in scalar field theory has not advanced far beyond the ground state.
D. Katsinis, G. Pastras, N. Tetradis
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Quantum revivals in conformal field theories in higher dimensions [PDF]
Journal of Physics A: Mathematical and Theoretical, 2016 We investigate the behavior of the return amplitude ${\cal F}(t)= |\langleΨ(0)|Ψ(t)\rangle|$ following a quantum quench in a conformal field theory (CFT) on a compact spatial manifold of dimension $d-1$ and linear size $O(L)$, from a state $|Ψ(0)\rangle$ of extensive energy with short-range correlations.
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Modular energy inequalities from relative entropy
Journal of High Energy Physics, 2018 We obtain new constraints for the modular energy of general states by using the monotonicity property of relative entropy. In some cases, modular energy can be related to the energy density of states and these constraints lead to interesting relations ...
David Blanco +3 more
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OSCILLONS IN SCALAR FIELD THEORIES: APPLICATIONS IN HIGHER DIMENSIONS AND INFLATION [PDF]
International Journal of Modern Physics D, 2007 The basic properties of oscillons — localized, long-lived, time-dependent scalar field configurations — are briefly reviewed, including recent results demonstrating how their existence depends on the dimensionality of space–time. Their role on the dynamics of phase transitions is discussed, and it is shown that oscillons may greatly accelerate the ...
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Compactifying 5d superconformal field theories to 3d
Journal of High Energy Physics, 2021 Building on recent progress in the study of compactifications of 6d (1, 0) superconformal field theories (SCFTs) on Riemann surfaces to 4d N $$ \mathcal{N} $$ = 1 theories, we initiate a systematic study of compactifications of 5d N $$ \mathcal{N} $$ = 1
Matteo Sacchi, Orr Sela, Gabi Zafrir
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Higgs-Yukawa model with higher dimension operators via extended mean field theory [PDF]
Physical Review D, 2016 ISSN:0556 ...
Akerlund, Oscar, de Forcrand, Philippe
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On the stress tensor of conformal field theories in higher dimensions
Nuclear Physics B, 1989 Abstract The behaviour of the stress tensor under conformal transformations of both flat and curved spaces is investigated for free theories in a classical background metric. In flat space ℝ d it is derived by the operator product expansion of two stress tensors.
Andrea Cappelli, Antoine Coste
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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
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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 +3 more
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