The spectral reconstruction of inclusive ratesA recently re-discovered variant of the Backus-Gilbert algorithm for spectral reconstruction enables the controlled determination of smeared spectral densities from lattice field theory correlation…John Bulava·Jan 10, 2023SaveLearn
Efficiently unquenching QCD+QED at O(α)We outline a strategy to efficiently include the electromagnetic interactions of the sea quarks in QCD+QED. When computing iso-spin breaking corrections to hadronic quantities at leading order in the…Tim Harris, Vera Gülpers, Antonin Portelli et al.·Jan 10, 2023SaveLearn
The L\"uscher scattering formalism on the t-channel cutThe L\"uscher scattering formalism, the standard approach for relating the discrete finite-volume energy spectrum to two-to-two scattering amplitudes, fails when analytically continued so far below…André Baião Raposo, Maxwell T. Hansen·Jan 10, 2023SaveLearn
Determination of Lee-Yang edge singularities in QCD by rational approximationsWe report updated results on the determination of Lee-Yang edge (LYE) singularities in Nf = 2+1 QCD using highly improved staggered quarks (HISQ) with physical masses on Nτ = 4, 6, 8…Kevin Zambello, David A. Clarke, Petros Dimopoulos et al.·Jan 10, 2023SaveLearn
Numerical studies on the finite-temperature CP restoration in 4D SU(N) gauge theory at θ=πRecent studies on the 't Hooft anomaly matching condition have suggested a nontrivial phase structure in 4D SU(N) gauge theory at θ=π. In the large-N limit, it has been found that CP…Akira Matsumoto, Kohta Hatakeyama, Mitsuaki Hirasawa et al.·Jan 10, 2023SaveLearn
Sigma terms of the baryon octet in Nf = 2+1 QCD with Wilson quarksA lot of progress has been made in the direct determination of nucleon sigma terms. Using similar methods, we consider the sigma terms of the other octet baryons as well. These are determined on CLS…Pia Leonie Jones Petrak, Gunnar Bali, Sara Collins et al.·Jan 10, 2023SaveLearn
Multi-point Pad\`e for the study of phase transitions: from the Ising model to lattice QCDThe Bielefeld Parma collaboration has recently put forward a method to investigate the QCD phase diagram based on the computation of Taylor series coefficients at both zero and imaginary values of…Francesco Di Renzo, Simran Singh·Jan 9, 2023SaveLearn
GPDs in asymmetric framesIt is often taken for granted that Generalized Parton Distributions (GPDs) are defined in the "symmetric" frame, where the transferred momentum is symmetrically distributed between the…Shohini Bhattacharya, Krzysztof Cichy, Martha Constantinou et al.·Jan 9, 2023SaveLearn
New results for thermal interquark bottomonium potentials using NRQCD from the HAL QCD methodWe report progress in the calculation of the thermal interquark potential of bottomonium using the HAL QCD method applied to bottom quarks in the non-relativistic approximation (i.e. NRQCD). We…Thomas Spriggs, Chris Allton, Timothy Burns et al.·Jan 9, 2023SaveLearn
Decomposition of the static potential in SU(3) gluodynamicsAfter fixing the Maximal Abelian gauge in SU(3) lattice gluodynamics we decompose the nonabelian gauge field into the Abelian field created by Abelian monopoles and the modified nonabelian field with…V. G. Bornyakov, I. Kudrov·Jan 8, 2023SaveLearn
Quantum Computing for the Wess-Zumino ModelFuture quantum computers will enable novel sign-problem-free studies of dynamical phenomena in non-perturbative quantum field theories, including real-time evolution and spontaneous supersymmetry…Christopher Culver, David Schaich·Jan 5, 2023SaveLearn
Matching lattice QC+ED to NatureThe first step of any QFT calculation, aiming at phenomenological predictions, is the matching of the theory to Nature. The matching procedure fixes the parameters of the theory in terms of an equal…Nazario Tantalo·Jan 5, 2023SaveLearn
Generative models for scalar field theories: how to deal with poor scaling?Generative models, such as the method of normalizing flows, have been suggested as alternatives to the standard algorithms for generating lattice gauge field configurations. Studies with the method…Javad Komijani, Marina K. Marinkovic·Jan 4, 2023SaveLearn
Calculating mK with lattice QCDWe have completed a lattice QCD calculation of mK, the mass difference between the long- and short-lived K mesons. The calculation was performed on a 643 × 128 lattice using 152…Bigeng Wang·Jan 3, 2023SaveLearn
Deconfinement in pure gauge SU(3) Yang-Mills theory: the ghost propagatorThe ghost propagator in Landau gauge is studied at finite temperature below and above Tc using lattice QCD simulations. For high temperatures, we find that the ghost propagator is enhanced,…Orlando Oliveira, Vítor Paiva, Paulo Silva·Jan 3, 2023SaveLearn
Direct lattice calculation of inclusive hadronic decay rates of the τ leptonThe inclusive hadronic decay-rates of the τ lepton are particularly interesting from the phenomenological point of view since they give access to the CKM matrix elements Vud and Vus.…Antonio Evangelista, Roberto Frezzotti, Giuseppe Gagliardi et al.·Jan 2, 2023SaveLearn
Excitations of Ising Strings on a LatticeThe 3d Ising model in the low temperature (ferromagnetic) phase describes dynamics of two-dimensional surfaces -- domain walls between clusters of parallel spins. The Kramers--Wannier duality maps…Andreas Athenodorou, Sergei Dubovsky, Conghuan Luo et al.·Dec 30, 2022SaveLearn
Machine learning phases of an Abelian gauge theoryThe phase transition of the two-dimensional U(1) quantum link model on the triangular lattice is investigated by employing a supervised neural network (NN) consisting of only one input layer, one…Jhao-Hong Peng, Yuan-Heng Tseng, Fu-Jiun Jiang·Dec 30, 2022SaveLearn
Deep Learning of Fermion Sign FluctuationsWe describe a procedure for alleviating the fermion sign problem in which phase fluctuations are explicitly subtracted from the Boltzmann factor. Several ans\"atze for fluctuations are designed and…Scott Lawrence, Yukari Yamauchi·Dec 30, 2022SaveLearn
Progress on the QCD deconfinement critical point for Nf=2 staggered fermionsThe global center symmetry of quenched QCD at zero baryonic chemical potential is broken spontaneously at a critical temperature Tc leading to a first-order phase transition. Including heavy…Reinhold Kaiser, Owe Philipsen·Dec 29, 2022SaveLearn
Approaching the Continuum Limit of the Deconfinement Critical Point for Nf=2 Staggered FermionsQuenched QCD at zero baryonic chemical potential undergoes a first-order deconfinement phase transition at a critical temperature Tc, which is related to the spontaneous breaking of the global…Reinhold Kaiser, Owe Philipsen·Dec 29, 2022SaveLearn
General quantum algorithms for Hamiltonian simulation with applications to a non-Abelian lattice gauge theoryWith a focus on universal quantum computing for quantum simulation, and through the example of lattice gauge theories, we introduce rather general quantum algorithms that can efficiently simulate…Zohreh Davoudi, Alexander F. Shaw, Jesse R. Stryker·Dec 28, 2022SaveLearn
Equation of state and speed of sound of isospin-asymmetric QCD on the latticeWe determine the QCD equation of state at nonzero temperature in the presence of an isospin asymmetry between the light quark chemical potentials on the lattice. Our simulations employ Nf=2+1…Bastian B. Brandt, Francesca Cuteri, Gergely Endrodi·Dec 28, 2022SaveLearn
Chiral critical behavior of 3D lattice fermionic models with quartic interactionsWe study the critical behavior of the three-dimensional (3D) Gross-Neveu (GN) model with Nf Dirac fermionic flavors and quartic interactions, at the chiral Z2 transition in the…Claudio Bonati, Alessio Franchi, Andrea Pelissetto et al.·Dec 28, 2022SaveLearn
Multi-hadron interactions from lattice QCDFirst-principles calculations of multi-hadron dynamics are a crucial goal in lattice QCD. Significant progress has been achieved in developing, implementing, and applying theoretical tools that…Fernando Romero-López·Dec 28, 2022SaveLearn