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We study heavy-light four-point function by employing Lorentzian inversion formula, where the conformal dimension of heavy operator is as large as central charge $C_T\rightarrow\infty$. We implement the Lorentzian inversion formula back and…

High Energy Physics - Theory · Physics 2020-08-26 Yue-Zhou Li

We construct a crossing symmetric basis for conformal four-point functions in momentum space by requiring consistent factorization. Just as scattering amplitudes factorize when the intermediate particle is on-shell, non-analytic parts of…

High Energy Physics - Theory · Physics 2018-10-10 Hiroshi Isono , Toshifumi Noumi , Gary Shiu

We use holography and four-dimensional $\,\mathcal{N}=4\,$ gauged supergravity to collect evidence for a large class of interconnected three-dimensional $\,\mathcal{N}=2\,$ conformal field theories. On the gravity side, we construct a…

High Energy Physics - Theory · Physics 2023-09-12 Miguel Chamorro-Burgos , Adolfo Guarino , Colin Sterckx

We perform a numerical bootstrap study of the mixed correlator system containing the half-BPS operators of dimension two and three in $\mathcal N = 4$ Super Yang-Mills. This setup improves on previous works in the literature that only…

High Energy Physics - Theory · Physics 2021-06-02 Agnese Bissi , Andrea Manenti , Alessandro Vichi

We present a universal treatment for imposing superconformal constraints on Mellin amplitudes for $\mathrm{SCFT_d}$ with $3\leq d\leq 6$. This leads to a new technique to compute holographic correlators, which is similar but complementary…

High Energy Physics - Theory · Physics 2018-09-26 Xinan Zhou

We combine supersymmetric localization and the conformal bootstrap to study five-dimensional superconformal field theories. To begin, we classify the admissible counter-terms and derive a general relation between the five-sphere partition…

High Energy Physics - Theory · Physics 2018-03-28 Chi-Ming Chang , Martin Fluder , Ying-Hsuan Lin , Yifan Wang

In this paper we introduce the characteristic dimension of a four dimensional $\mathcal{N}=2$ superconformal field theory, which is an extraordinary simple invariant determined by the scaling dimensions of its Coulomb branch operators. We…

High Energy Physics - Theory · Physics 2023-03-14 Sergio Cecotti , Michele Del Zotto , Mario Martone , Robert Moscrop

Using numerical conformal bootstrap technology we perform a non-perturbative study of the Ising CFT and its spectrum from infinitesimal to finite values of $\varepsilon=4-d$. Exploiting the recent navigator bootstrap method in conjunction…

High Energy Physics - Theory · Physics 2023-03-22 Johan Henriksson , Stefanos R. Kousvos , Marten Reehorst

Under the assumption that degenerate fields exist, diagonal CFTs such as Liouville theory can be solved analytically using the conformal bootstrap method. Here we generalize this approach to non-diagonal CFTs, i.e. CFTs whose primary fields…

High Energy Physics - Theory · Physics 2018-07-04 Santiago Migliaccio , Sylvain Ribault

In this thesis, we introduce new tools for the conformal bootstrap, autoboot and qboot. Each tool solves a different step in the whole computational stack, and combined with an existing efficient tool SDPB which solves semidefinite…

High Energy Physics - Theory · Physics 2020-06-09 Mocho Go

The critical $O(N)$ CFT in spacetime dimensions $2 < d < 4$ is one of the most important examples of a conformal field theory, with the Ising CFT at $N=1$, $2 \leq d < 4$, as a notable special case. Apart from numerous physical…

High Energy Physics - Theory · Physics 2025-11-24 Johan Henriksson

Let $\hat\Sigma=\frac{1}{n}\sum_{i=1}^n X_i\otimes X_i$ denote the sample covariance operator of centered i.i.d.~observations $X_1,\dots,X_n$ in a real separable Hilbert space, and let $\Sigma=\mathbb{E}(X_1\otimes X_1)$. The focus of this…

Statistics Theory · Mathematics 2024-01-25 Miles E. Lopes

In this work we report on a new bootstrap method for quantum mechanical problems that closely mirrors the setup from conformal field theory (CFT). We use the equations of motion to develop an analogue of the conformal block expansion for…

High Energy Physics - Theory · Physics 2023-04-26 Colin Oscar Nancarrow , Yuan Xin

We propose a numerical method to estimate one-point functions and the free-energy density of conformal field theories at finite temperature by solving the Kubo-Martin-Schwinger condition for the two-point functions of identical scalars. We…

High Energy Physics - Theory · Physics 2025-06-16 Julien Barrat , Enrico Marchetto , Alessio Miscioscia , Elli Pomoni

We describe in more detail our approach to the conformal bootstrap which uses the Mellin representation of $CFT_d$ four point functions and expands them in terms of crossing symmetric combinations of $AdS_{d+1}$ Witten exchange functions.…

High Energy Physics - Theory · Physics 2017-05-24 Rajesh Gopakumar , Apratim Kaviraj , Kallol Sen , Aninda Sinha

In the context of principal components analysis (PCA), the bootstrap is commonly applied to solve a variety of inference problems, such as constructing confidence intervals for the eigenvalues of the population covariance matrix $\Sigma$.…

Statistics Theory · Mathematics 2022-02-17 Junwen Yao , Miles E. Lopes

We study an ${\cal N} = 2$ supersymmetric generalization of the three-dimensional critical $O(N)$ vector model that is described by $N+1$ chiral superfields with superpotential $W = g_1 X \sum_i Z_i^2 + g_2 X^3$. By combining the tools of…

High Energy Physics - Theory · Physics 2016-02-17 Shai M. Chester , Simone Giombi , Luca V. Iliesiu , Igor R. Klebanov , Silviu S. Pufu , Ran Yacoby

We study numerically the 6D (2,0) superconformal bootstrap using the soft-Actor-Critic (SAC) algorithm as a stochastic optimizer. We focus on the four-point functions of scalar superconformal primaries in the energy-momentum multiplet.…

High Energy Physics - Theory · Physics 2023-01-25 Gergely Kántor , Vasilis Niarchos , Constantinos Papageorgakis , Paul Richmond

We study CFT data of 3-dimensional superconformal field theories (SCFTs) arising from wrapped two M5-branes on closed hyperbolic 3-manifolds. Via so-called 3d/3d correspondence, central charges of these SCFTs are related to a $SL(2)$…

High Energy Physics - Theory · Physics 2017-09-13 Jin-Beom Bae , Dongmin Gang , Jaehoon Lee

We incorporate the microscopic assumptions that lead to a certain generalization of the Lieb-Schultz-Mattis (LSM) theorem for one-dimensional spin chains into the conformal bootstrap. Our approach accounts for the "LSM anomaly" possessed by…

Strongly Correlated Electrons · Physics 2023-05-31 Ryan A. Lanzetta , Lukasz Fidkowski