Results 31 to 40 of about 3,196 (276)

Analytic bootstrap of mixed correlators in the O(n) CFT

open access: yesJournal of High Energy Physics, 2022
We use large spin perturbation theory and the Lorentzian inversion formula to compute order-ϵ corrections to mixed correlators in the O(n) Wilson-Fisher CFT in 4 − ϵ dimensions.
Francesco Bertucci   +2 more
doaj   +1 more source

Topology change, emergent symmetries and compact star matter [PDF]

open access: yesAAPPS Bulletin, 2021
Topology effects have being extensively studied and confirmed in strongly correlated condensed matter physics. In the limit of large number of colors, baryons can be regarded as topological objects—skyrmions—and the baryonic matter can be regarded as a ...
Yong-Liang Ma, M. Rho
semanticscholar   +1 more source

Cusp in the symmetry energy, speed of sound in neutron stars and emergent pseudo-conformal symmetry [PDF]

open access: yesModern Physics Letters A, 2021
In this paper, we review how the “cusp” predicted in the nuclear symmetry energy generated by a topology change at density [Formula: see text] can have a surprising consequence, so far unrecognized in nuclear physics and astrophysics communities, on the ...
H. Lee   +3 more
semanticscholar   +1 more source

Narain CFTs and quantum codes at higher genus

open access: yesJournal of High Energy Physics, 2023
Code CFTs are 2d conformal field theories defined by error-correcting codes. Recently, Dymarsky and Shapere generalized the construction of code CFTs to include quantum error-correcting codes. In this paper, we explore this connection at higher genus. We
Johan Henriksson   +2 more
doaj   +1 more source

Quantum many-body conformal dynamics: Symmetries, geometry, conformal tower states, and entropy production [PDF]

open access: yesPhysical Review A, 2019
In this article we study the quench dynamics of Galilean and scale invariant many-body systems which can be prepared using interacting atomic gases. The far-away from equilibrium dynamics are investigated by employing $m$-body density matrices, which are
J. Maki, F. Zhou
semanticscholar   +1 more source

Planck scale from broken local conformal invariance in Weyl geometry [PDF]

open access: yesProceedings of Corfu Summer Institute 2019 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2019), 2019
We show that in a quadratic gravity based on Weyl's conformal geometry, the Planck mass scale can be generated from quantum effects of the gravitational field and the Weyl gauge field via the Coleman-Weinberg mechanism where a local scale symmetry is ...
I. Oda
semanticscholar   +1 more source

On the symmetries of cosmological perturbations [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2020
The space of inflationary models is vast, containing wide varieties of mechanisms, symmetries, and spectra of particles. Consequently, the space of observational signatures is similarly complex. Hence, it is natural to look for boundaries of the space of
D. Green, E. Pajer
semanticscholar   +1 more source

Tensors and spinors in de Sitter space

open access: yesJournal of High Energy Physics, 2022
We construct the Wightman function for symmetric traceless tensors and Dirac fermions in dS d+1 in a coordinate and index free formalism using a d + 2 dimensional ambient space. We expand the embedding space formalism to cover spinor and tensor fields in
Ben Pethybridge, Vladimir Schaub
doaj   +1 more source

An integer basis for celestial amplitudes

open access: yesJournal of High Energy Physics, 2023
We present a discrete basis of solutions of the massless Klein-Gordon equation in 3 + 1 Minkowski space which transform as 𝔰𝔩(2, ℂ) Lorentz/conformal primaries and descendants, and whose elements all have integer conformal dimension.
Jordan Cotler   +2 more
doaj   +1 more source

A CFT interpretation of cosmological correlation functions in α−vacua in de-Sitter space

open access: yesJournal of High Energy Physics, 2023
De-Sitter(dS) space allows for a generalized class of vacua, known as α–vacua, described by some parameters. The Bunch-Davies (BD) vacuum is a point in this parameter space. The cosmological correlation function in BD vacuum in four dimensions and can be
Sachin Jain   +4 more
doaj   +1 more source

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