Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Iossa, Cristoforo"'
Autor:
Grassi, Alba, Iossa, Cristoforo
We study extremal and integrated correlators of half-BPS operators in four-dimensional $\mathcal{N}=2$ SQCD and $\mathcal{N}=4$ SYM with $SU(3)$ gauge group. We focus on the large R-charge sector where the number of operators insertions becomes very
Externí odkaz:
http://arxiv.org/abs/2408.07391
Autor:
Bautista, Yilber Fabian, Bonelli, Giulio, Iossa, Cristoforo, Tanzini, Alessandro, Zhou, Zihan
We present a novel study of Kerr Compton amplitudes in a partial wave basis in terms of the Nekrasov-Shatashvili (NS) function of the confluent Heun equation (CHE). Remarkably, NS-functions enjoy analytic properties and symmetries that are naturally
Externí odkaz:
http://arxiv.org/abs/2312.05965
Autor:
Dodelson, Matthew, Iossa, Cristoforo, Karlsson, Robin, Lupsasca, Alexandru, Zhiboedov, Alexander
Lorentzian correlators of local operators exhibit surprising singularities in theories with gravity duals. These are associated with null geodesics in an emergent bulk geometry. We analyze singularities of the thermal response function dual to propag
Externí odkaz:
http://arxiv.org/abs/2310.15236
We study the analytic structure of the heavy-heavy-light-light holographic correlators in the supergravity approximation of the AdS$_3 \times S^3$/CFT$_2$ duality. As an explicit example, we derive the correlator where the heavy operator is a classic
Externí odkaz:
http://arxiv.org/abs/2306.15305
We show that holographic thermal two-sided two-point correlators take the form of a product over quasi-normal modes (QNMs). Due to this fact, the two-point function admits a natural dispersive representation with a positive discontinuity at the locat
Externí odkaz:
http://arxiv.org/abs/2304.12339
Autor:
Dodelson, Matthew, Grassi, Alba, Iossa, Cristoforo, Lichtig, Daniel Panea, Zhiboedov, Alexander
Publikováno v:
SciPost Phys. 14, 116 (2023)
We present an exact formula for the thermal scalar two-point function in four-dimensional holographic conformal field theories. The problem of finding it reduces to the analysis of the wave equation on the AdS-Schwarzschild background. The two-point
Externí odkaz:
http://arxiv.org/abs/2206.07720
We perform a detailed study of a class of irregular correlators in Liouville Conformal Field Theory, of the related Virasoro conformal blocks with irregular singularities and of their connection formulae. Upon considering their semi-classical limit,
Externí odkaz:
http://arxiv.org/abs/2201.04491
We give explicit expressions for the finite frequency greybody factor, quasinormal modes and Love numbers of Kerr black holes by computing the exact connection coefficients of the radial and angular parts of the Teukolsky equation. This is obtained b
Externí odkaz:
http://arxiv.org/abs/2105.04483
Publikováno v:
Phys. Rev. Lett. 124, 051602 (2020)
Four-dimensional gauge theories with matter can have regions in parameter space, often dubbed conformal windows, where they flow in the infrared to non-trivial conformal field theories. It has been conjectured that conformality can be lost because of
Externí odkaz:
http://arxiv.org/abs/1908.04325
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