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The numerical conformal bootstrap is used to study mixed correlators in $\mathcal{N}=1$ superconformal field theories (SCFTs) in $d=4$ spacetime dimensions. Systems of four-point functions involving scalar chiral and real operators are…

High Energy Physics - Theory · Physics 2017-08-02 Daliang Li , David Meltzer , Andreas Stergiou

Superconformal field theories (SCFT) are known to possess solvable yet nontrivial sectors in their full operator algebras. Two prime examples are the chiral algebra sector on a two dimensional plane in four dimensional $\mathcal{N}=2$…

High Energy Physics - Theory · Physics 2019-12-24 Mykola Dedushenko , Yifan Wang

In this long overdue second installment, we continue to develop the conformal bootstrap program for ${\mathcal N}=4$ superconformal field theories in four dimensions via an analysis of the correlation function of four stress-tensor…

High Energy Physics - Theory · Physics 2019-07-24 Christopher Beem , Leonardo Rastelli , Balt C. van Rees

We apply the numerical bootstrap program to chiral operators in four-dimensional ${\mathcal N}=2$ SCFTs. In the first part of this work we study four-point functions in which all fields have the same conformal dimension. We give special…

High Energy Physics - Theory · Physics 2016-01-12 Madalena Lemos , Pedro Liendo

We study the constraints imposed by superconformal symmetry, crossing symmetry, and unitarity for theories with four supercharges in spacetime dimension $2\leq d\leq 4$. We show how superconformal algebras with four Poincar\'{e}…

High Energy Physics - Theory · Physics 2015-09-04 Nikolay Bobev , Sheer El-Showk , Dalimil Mazac , Miguel F. Paulos

We study the conformal bootstrap constraints for 3D conformal field theories with a $\mathbb{Z}_2$ or parity symmetry, assuming a single relevant scalar operator $\epsilon$ that is invariant under the symmetry. When there is additionally a…

High Energy Physics - Theory · Physics 2018-12-05 Alexander Atanasov , Aaron Hillman , David Poland

We study half-BPS line defects in $\mathcal{N}=2$ superconformal theories using the bootstrap approach. We concentrate on local excitations constrained to the defect, which means the system is a $1d$ defect CFT with $\mathfrak{osp}(4^*|2)$…

High Energy Physics - Theory · Physics 2020-04-22 Aleix Gimenez-Grau , Pedro Liendo

We study the conformal bootstrap constraints for 4D $\mathcal{N}=1$ superconformal field theories containing a chiral operator $\phi$ and the chiral ring relation $\phi^2=0$. Hints for a minimal interacting SCFT in this class have appeared…

High Energy Physics - Theory · Physics 2016-04-01 David Poland , Andreas Stergiou

In this work we initiate the conformal bootstrap program for ${\mathcal N}=2$ superconformal field theories in four dimensions. We promote an abstract operator-algebraic viewpoint in order to unify the description of Lagrangian and…

High Energy Physics - Theory · Physics 2019-03-25 Christopher Beem , Madalena Lemos , Pedro Liendo , Leonardo Rastelli , Balt C. van Rees

Using numerical bootstrap method, we determine the critical exponents of the minimal three-dimensional $\mathcal{N}=1$ superconformal field theory (SCFT) to be $\eta_{\sigma}=0.168888(60)$ and $\omega=0.882(9)$. The model was argued in…

High Energy Physics - Theory · Physics 2018-07-13 Junchen Rong , Ning Su

This paper focuses on the analysis of $4d$ $\mathcal{N}=4$ superconformal theories in the presence of a defect from the point of view of the conformal bootstrap. We will concentrate first on the case of codimension one, where the defect is…

High Energy Physics - Theory · Physics 2017-03-08 Pedro Liendo , Carlo Meneghelli

We investigate the non-BPS realm of 3d ${\cal N} = 4$ superconformal field theory by uniting the non-perturbative methods of the conformal bootstrap and supersymmetric localization, and utilizing special features of 3d ${\cal N} = 4$…

High Energy Physics - Theory · Physics 2021-06-08 Chi-Ming Chang , Martin Fluder , Ying-Hsuan Lin , Shu-Heng Shao , Yifan Wang

Any N=2 superconformal field theory (SCFT) in four dimensions has a sector of operators related to a two-dimensional chiral algebra containing a Virasoro sub-algebra. Moreover, there are well-known examples of isolated SCFTs whose chiral…

High Energy Physics - Theory · Physics 2016-11-23 Matthew Buican , Takahiro Nishinaka

We study the space of 3d ${\cal N} = 6$ SCFTs by combining numerical bootstrap techniques with exact results derived using supersymmetric localization. First we derive the superconformal block decomposition of the four-point function of the…

High Energy Physics - Theory · Physics 2021-05-26 Damon J. Binder , Shai M. Chester , Max Jerdee , Silviu S. Pufu

Coulomb branches of vacua are the most universal moduli spaces that arise in local unitary interacting 4d $\mathcal{N}=2$ superconformal field theories (SCFTs). In these theories, $1/2$-BPS primaries parameterize the Coulomb branches and…

High Energy Physics - Theory · Physics 2024-06-06 Matthew Buican

We suggest a way to implement conformal bootstrap program for the case of the ${\cal N}=1$ SCFT in three dimensions using the previous analysis of the Ising model in \cite{CB}. We find approximate values for the conformal dimensions of…

High Energy Physics - Theory · Physics 2013-10-31 Denis Bashkirov

In this paper, we elaborate on aspects of the recently introduced BMS bootstrap programme. We consider two-dimensional (2d) field theories with BMS3 symmetry and extensively use highest weight representations to uncover the BMS version of…

High Energy Physics - Theory · Physics 2017-08-16 Arjun Bagchi , Mirah Gary , Zodinmawia

We implement the conformal bootstrap program for three-dimensional CFTs with $\mathcal{N}=2$ supersymmetry and find universal constraints on the spectrum of operator dimensions in these theories. By studying the bounds on the dimension of…

High Energy Physics - Theory · Physics 2015-08-11 Nikolay Bobev , Sheer El-Showk , Dalimil Mazac , Miguel F. Paulos

Boundaries in three-dimensional $\mathcal{N}=2$ superconformal theories may preserve one half of the original bulk supersymmetry. There are two possibilities which are characterized by the chirality of the leftover supercharges. Depending…

High Energy Physics - Theory · Physics 2021-05-05 Aleix Gimenez-Grau , Pedro Liendo , Philine van Vliet

In large part, the future utility of modern numerical conformal bootstrap depends on its ability to accurately predict the existence of hitherto unknown non-trivial conformal field theories (CFTs). Here we investigate the extent to which…

High Energy Physics - Theory · Physics 2021-03-31 Matthew T. Dowens , Chris A. Hooley
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