Results 31 to 40 of about 98,864 (312)

Effective field theory [PDF]

open access: yes, 2008
I give a brief review of effective field theory, disscussing the contribution of Feza G rsey in particular and focusing on the literature I am most familiar with.
openaire   +3 more sources

Ghostbusters: unitarity and causality of non-equilibrium effective field theories

open access: yesJournal of High Energy Physics, 2020
: For a non-equilibrium physical system defined along a closed time path (CTP), a key constraint is the so-called largest time equation, which is a consequence of unitarity and implies causality.
Ping Gao, Paolo Glorioso, Hong Liu
doaj   +1 more source

Loops in AdS: from the spectral representation to position space. Part II

open access: yesJournal of High Energy Physics, 2021
We continue the study of AdS loop amplitudes in the spectral representation and in position space. We compute the finite coupling 4-point function in position space for the large-N conformal Gross Neveu model on AdS 3.
Dean Carmi
doaj   +1 more source

Homological classification of topological terms in sigma models on homogeneous spaces

open access: yesJournal of High Energy Physics, 2018
We classify the topological terms (in a sense to be made precise) that may appear in a non-linear sigma model based on maps from an arbitrary worldvolume manifold to a homogeneous space G/H (where G is an arbitrary Lie group and H ⊂ G).
Joe Davighi, Ben Gripaios
doaj   +1 more source

Soft bootstrap and effective field theories

open access: yesJournal of High Energy Physics, 2019
The soft bootstrap program aims to construct consistent effective field theories (EFT’s) by recursively imposing the desired soft limit on tree-level scattering amplitudes through on-shell recursion relations.
Ian Low, Zhewei Yin
doaj   +1 more source

Constraining effective field theories with machine learning [PDF]

open access: yesEPJ Web of Conferences, 2020
An important part of the Large Hadron Collider (LHC) legacy will be precise limits on indirect effects of new physics, framed for instance in terms of an effective field theory.
Brehmer Johann   +6 more
doaj   +1 more source

Effective field theory for inflation [PDF]

open access: yesPhysical Review D, 2008
14 pages, Latex, references added and minor additions and corrections ...
openaire   +3 more sources

Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders

open access: yesPopulation Ecology, EarlyView.
We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa   +2 more
wiley   +1 more source

Speciation Through the Lens of Population Dynamics: A Theoretical Primer on How Small and Large Populations Diverge

open access: yesPopulation Ecology, EarlyView.
Population size and dynamics fundamentally shape speciation by influencing genetic drift, founder events, and adaptive potential. Small populations may speciate rapidly due to stronger drift, whereas large populations harbor more genetic diversity, which can alter divergence trajectories. We highlight theoretical models that incorporate population size
Ryo Yamaguchi   +3 more
wiley   +1 more source

Spin-charge separation for paired Dirac fermions in (1 + 1) dimensions

open access: yesJournal of High Energy Physics
We study Dirac fermions at finite density coupled to a complex pairing field assumed to obey scalar field theory with quartic self-repulsion. The bulk of our work develops the mathematics that elucidates the propagation of fermionic excitations in such ...
Laith H. Haddad
doaj   +1 more source

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