253 citations · 3.4k across the 96 of their papers we have counts for
46 papers · 1 filter
The origin of excited states of the baryon at the SU(3) point from Lattice QCD
Javier Suarez Sucunza, Thomas Luu, Maxim Mai +3
In this work we determine the finite-volume lattice QCD spectrum at the flavor symmetric point in the meson-baryon singlet and octet irreducible representations. W…
The structure of the lightest positive-parity charmed mesons from LQCD
Eric B. Gregory, Feng-Kun Guo, Christoph Hanhart +2
The nature of low-lying scalar and axial-vector charmed mesons has long been debated, specifically whether they are best explained as hadronic molecules or compact tetraquark syste…
The Lambda 1405 at the point in lattice QCD
Javier Suarez Sucunza, Thomas Luu, Carsten Urbach
The pole structure of the has been a topic of debate for a long time. Chiral perturbation theory predicts that its experimental spectrum may be explained by a two pole st…
Exclusion of a diquark-antidiquark structure for the lightest positive-parity charmed mesons
Eric B. Gregory, Feng-Kun Guo, Christoph Hanhart +2
The nature of low-lying scalar and axial-vector charmed mesons has been debated for decades, with hadronic molecular and compact tetraquark models being prominent candidates. These…
Quantum sampling on a quantum annealer for large volumes in the strong coupling limit for gauge group U(3)
Jangho Kim, Thomas Luu, Wolfgang Unger
In our previous studies [1, 2], we confirmed that a quantum annealer can be used for importance sampling of gauge theories. In this paper, we extend the previous results to larger…
Testing importance sampling on a quantum annealer for strong coupling SU(3) gauge theory
Jangho Kim, Thomas Luu, Wolfgang Unger
gauge theories in the strong coupling limit can be described by integer variables representing monomers, dimers and baryon loops. We demonstrate how the D-wave quantum an…
gauge theory in the strong coupling limit on a quantum annealer
Jangho Kim, Thomas Luu, Wolfgang Unger
Lattice QCD in the strong coupling regime can be formulated in dual variables which are integer-valued. It can be efficiently simulated for modest finite temperatures and finite de…
Exotics in the system
Eric B. Gregory, Feng-Kun Guo, Christoph Hanhart +2
In this proceedings we consider several states, namely the , , and , which appear to defy description as simple quark-ant…
Nonperturbative Renormalization of the Quark Chromoelectric Dipole Moment with the Gradient Flow:Power Divergences
Jangho Kim, Thomas Luu, Matthew D. Rizik +1
The CP-violating quark chromoelectric dipole moment (qCEDM) operator, contributing to the electric dipole moment (EDM), mixes under renormalization and particularly on the lattice…
Renormalization of a Contact Interaction on a Lattice
Christopher Körber, Evan Berkowitz, Thomas Luu
Contact interactions can be used to describe a system of particles at unitarity, contribute to the leading part of nuclear interactions and are numerically non-trivial because they…
Confirming the Existence of the strong CP Problem in Lattice QCD with the Gradient Flow
Jack Dragos, Thomas Luu, Andrea Shindler +2
We calculate the electric dipole moment of the nucleon induced by the QCD theta term. We use the gradient flow to define the topological charge and use flavors of dynam…
Expansion coefficient of the pseudo-scalar density using the gradient flow in lattice QCD
J. G. Reyes, J. Dragos, J. Kim +2
We use the Yang-Mills gradient flow to calculate the pseudo-scalar expansion coefficient . This quantity is a key ingredient to obtaining the chiral condensate and stra…
Towards a determination of the nucleon EDM from the quark chromo-EDM operator with the gradient flow
Jangho Kim, Jack Dragos, Andrea Shindler +2
In this proceedings, we lay the foundation for computing the contribution of quark chromo-electric dipole moment (qCEDM) operator to the nucleon electric dipole moment. By applying…
Improvements to Nucleon Matrix Elements within a Vacuum from Lattice QCD
Jack Dragos, Thomas Luu, Andrea Shindler +2
Using the gradient flow, we calculated the nucleon mixing angle and the nucleon electric dipole moment (EDM) induced by the QCD -term. To do so, we computed the topologi…
Electric Dipole Moment Results from lattice QCD
Jack Dragos, Thomas Luu, Andrea Shindler +1
We utilize the gradient flow to define and calculate electric dipole moments induced by the strong QCD -term and the dimension-6 Weinberg operator. The gradient flow is a promis…
Extracting the Single-Particle Gap in Carbon Nanotubes with Lattice Quantum Monte Carlo
Evan Berkowitz, Christopher Koerber, Stefan Krieg +3
We show how lattice Quantum Monte Carlo simulations can be used to calculate electronic properties of carbon nanotubes in the presence of strong electron-electron correlations. We…
The nucleon electric dipole moment with the gradient flow: the -term contribution
Andrea Shindler, Thomas Luu, Jordy de Vries
We propose a new method to calculate electric dipole moments induced by the strong QCD -term. The method is based on the gradient flow for gauge fields and is free from renormal…
Two-Baryon Systems with Twisted Boundary Conditions
Zohreh Davoudi
I derive the most general quantization condition for energy eigenvalues of two interacting baryons in a finite cubic volume when arbitrary twisted boundary conditions are imposed o…
Beyond-the-Standard-Model matrix elements with the gradient flow
A. Shindler, J. de Vries, T. Luu
At the Forschungszentrum Juelich (FZJ) we have started a long-term program that aims to determine beyond-the-Standard-Model (BSM) matrix elements using the gradient flow, and to un…
Nuclear Reactions from Lattice QCD
Raúl A. Briceño, Zohreh Davoudi, Thomas C. Luu
One of the overarching goals of nuclear physics is to rigorously compute properties of hadronic systems directly from the fundamental theory of strong interactions, Quantum Chromod…
Two-Baryon Systems with Twisted Boundary Conditions
Raul A. Briceno, Zohreh Davoudi, Thomas C. Luu +1
We explore the use of twisted boundary conditions in extracting the nucleon mass and the binding energy of two-baryon systems, such as the deuteron, from Lattice QCD calculations.…
Two-Nucleon Systems in a Finite Volume: (II) 3S1-3D1 Coupled Channels and the Deuteron
Raul A. Briceno, Zohreh Davoudi, Thomas Luu +1
The energy spectra of two nucleons in a cubic volume provide access to the two phase shifts and one mixing angle that define the S-matrix in the 3S1-3D1 coupled channels containing…
Two-Nucleon Systems in a Finite Volume
Raul A. Briceno
I present the formalism and methodology for determining the nucleon-nucleon scattering parameters from the finite volume spectra obtained from lattice quantum chromodynamics calcul…
Two-Nucleon Systems in a Finite Volume: (I) Quantization Conditions
Raul A. Briceno, Zohreh Davoudi, Thomas C. Luu
The quantization condition for interacting energy eigenvalues of the two-nucleon system in a finite cubic volume is derived in connection to the nucleon-nucleon scattering amplitud…