384 citations · 1.5k across the 22 of their papers we have counts for
22 papers
The EEC-Hedron: Positivity Bounds on Energy Correlators
Bianka Meçaj, Ian Moult, Hidde Stoffels +2
We study the constraints placed by energy positivity on general unitary quantum field theories. We show that the coefficients in the partial wave expansion of energy-energy correla…
Energy Correlator Conformal Blocks and Positivity
Bianka Meçaj, Ian Moult, Matthew T. Walters +1
Correlation functions of energy flow operators (energy-energy correlators) are one of the simplest observables in quantum field theory and gravity, with diverse applications rangin…
Flux Correlators and Semiclassics
Eren Firat, Alexander Monin, Riccardo Rattazzi +1
We consider correlators for the flux of energy and charge in the background of operators with large global charge in conformal field theory (CFT). It has recently been shown…
Towards a nonperturbative construction of the -matrix
Brian Henning, Hitoshi Murayama, Francesco Riva +2
We present a nonperturbative recipe for directly computing the -matrix in strongly-coupled QFTs. The method makes use of spectral data obtained in a Hamiltonian framework and ca…
Thermalization and chaos in a 1+1d QFT
Luca V. Delacretaz, A. Liam Fitzpatrick, Emanuel Katz +1
We study aspects of chaos and thermodynamics at strong coupling in a scalar model using LCT numerical methods. We find that our eigenstate spectrum satisfies Wigner-Dyson statistic…
Thermalization and Hydrodynamics of Two-Dimensional Quantum Field Theories
Luca V. Delacretaz, A. Liam Fitzpatrick, Emanuel Katz +1
We consider 2d QFTs as relevant deformations of CFTs in the thermodynamic limit. Using causality and KPZ universality, we place a lower bound on the timescale characterizing the on…
On the Stress Tensor Light-ray Operator Algebra
Alexandre Belin, Diego M. Hofman, Grégoire Mathys +1
We study correlation functions involving generalized ANEC operators of the form in four dimensions. We compute two, three, and fo…
Nonperturbative dynamics of (2+1)d -theory from Hamiltonian truncation
Nikhil Anand, Emanuel Katz, Zuhair U. Khandker +1
We use Lightcone Conformal Truncation (LCT) -- a version of Hamiltonian truncation -- to study the nonperturbative, real-time dynamics of -theory in 2+1 dimensions. This theor…
Introduction to Lightcone Conformal Truncation: QFT Dynamics from CFT Data
Nikhil Anand, A. Liam Fitzpatrick, Emanuel Katz +3
We both review and augment the lightcone conformal truncation (LCT) method. LCT is a Hamiltonian truncation method for calculating dynamical quantities in QFT in infinite volume. T…
Solving the 2D SUSY Gross-Neveu-Yukawa Model with Conformal Truncation
A. Liam Fitzpatrick, Emanuel Katz, Matthew T. Walters +1
We use Lightcone Conformal Truncation to analyze the RG flow of the two-dimensional supersymmetric Gross-Neveu-Yukawa theory, i.e. the theory of a real scalar superfield with a $\m…
Momentum space CFT correlators for Hamiltonian truncation
Nikhil Anand, Zuhair U. Khandker, Matthew T. Walters
We consider Lorentzian CFT Wightman functions in momentum space. In particular, we derive a set of reference formulas for computing two- and three-point functions, restricting our…
Nonperturbative Matching Between Equal-Time and Lightcone Quantization
A. Liam Fitzpatrick, Emanuel Katz, Matthew T. Walters
We investigate the nonperturbative relation between lightcone (LC) and standard equal-time (ET) quantization in the context of theory in . We discuss the perturbative m…
Lightcone Effective Hamiltonians and RG Flows
A. Liam Fitzpatrick, Jared Kaplan, Emanuel Katz +2
We present a prescription for an effective lightcone (LC) Hamiltonian that includes the effects of zero modes, focusing on the case of Conformal Field Theories (CFTs) deformed by r…
RG Flow from Theory to the 2D Ising Model
Nikhil Anand, Vincent X. Genest, Emanuel Katz +2
We study 1+1 dimensional theory using the recently proposed method of conformal truncation. Starting in the UV CFT of free field theory, we construct a complete basis of stat…
A Conformal Truncation Framework for Infinite-Volume Dynamics
Emanuel Katz, Zuhair U. Khandker, Matthew T. Walters
We present a new framework for studying conformal field theories deformed by one or more relevant operators. The original CFT is described in infinite volume using a basis of state…
Hawking from Catalan
A. Liam Fitzpatrick, Jared Kaplan, Matthew T. Walters +1
The Virasoro algebra determines all `graviton' matrix elements in AdS/CFT. We study the explicit exchange of any number of Virasoro gravitons between heavy and light CFT$_2…
Eikonalization of Conformal Blocks
A. Liam Fitzpatrick, Jared Kaplan, Matthew T. Walters +1
Classical field configurations such as the Coulomb potential and Schwarzschild solution are built from the t-channel exchange of many light degrees of freedom. We study the CFT ana…
Virasoro Conformal Blocks and Thermality from Classical Background Fields
A. Liam Fitzpatrick, Jared Kaplan, Matthew T. Walters
We show that in 2d CFTs at large central charge, the coupling of the stress tensor to heavy operators can be re-absorbed by placing the CFT in a non-trivial background metric. This…
Identifying boosted new physics with non-isolated leptons
Christopher Brust, Petar Maksimovic, Alice Sady +3
We demonstrate the utility of leptons which fail standard isolation criteria in searches for new physics at the LHC. Such leptons can arise in any event containing a highly boosted…
Universality of Long-Distance AdS Physics from the CFT Bootstrap
A. Liam Fitzpatrick, Jared Kaplan, Matthew T. Walters
We begin by explicating a recent proof of the cluster decomposition principle in AdS_{d+1} from the CFT_d bootstrap in d > 2. The CFT argument also computes the leading interaction…
New Light Species and the CMB
Christopher Brust, David E. Kaplan, Matthew T. Walters
We consider the effects of new light species on the Cosmic Microwave Background. In the massless limit, these effects can be parameterized in terms of a single number, the relativi…
Semiconductor Probes of Light Dark Matter
Peter W. Graham, David E. Kaplan, Surjeet Rajendran +1
Dark matter with mass below about a GeV is essentially unobservable in conventional direct detection experiments. However, newly proposed technology will allow the detection of sin…