Can rooted staggered fermions describe nonzero baryon density at low temperatures?Research on the QCD phase diagram with lattice field theory methods is dominated by the use of rooted staggered fermions, as they are the computationally cheapest discretization available. We show…Szabolcs Borsanyi, Zoltan Fodor, Matteo Giordano et al.·Aug 11, 2023SaveLearn
Fuzzy gauge theory for quantum computersContinuous gauge theories, because of their bosonic degrees of freedom, have an infinite-dimensional local Hilbert space. Encoding these degrees of freedom on qubit-based hardware demands some sort…Andrei Alexandru, Paulo F. Bedaque, Andrea Carosso et al.·Aug 9, 2023SaveLearn
Spectroscopy of heavy exotic mesons using lattice QCD static potentials and the Born-Oppenheimer approximationI discuss the investigation of heavy exotic mesons using lattice QCD static potentials and the Born-Oppenheimer approximation. I summarize selected recent results for b b q q…Marc Wagner·Aug 8, 2023SaveLearn
Hadrons in (1+1)D Hamiltonian hardcore lattice QCDWe study 2-flavor Hamiltonian lattice QCD in (1+1)D with hardcore gluons, at zero and finite density, by means of matrix product states. We introduce a formulation of the theory where gauge…Marco Rigobello, Giuseppe Magnifico, Pietro Silvi et al.·Aug 8, 2023SaveLearn
Step scaling with gradient flow and finite temperatureWe combine gradient flow, step-scaling, and finite-temperature boundary conditions to scale-set 2+1+1 flavor QCD lattices with physical HISQ quarks at multiple spacings down to a=0.01378 fm, such…Parikshit M. Junnarkar, Guy D. Moore, Aidan Chaumet·Aug 8, 2023SaveLearn
Quantum Gate Sets for Lattice QCD in the strong coupling limit: Nf=1We derive the primitive quantum gate sets to simulate lattice quantum chromodynamics (LQCD) in the strong-coupling limit with one flavor of massless staggered quarks. This theory is of interest for…Michael Fromm, Owe Philipsen, Wolfgang Unger et al.·Aug 6, 2023SaveLearn
Inclusive hadronic decay rate of the τ lepton from lattice QCDInclusive hadronic decays of the τ lepton are very interesting from the phenomenological point of view since they give access to the CKM matrix elements Vud and Vus. In this paper, for…Antonio Evangelista, Roberto Frezzotti, Giuseppe Gagliardi et al.·Aug 6, 2023SaveLearn
The chiral condensate of Nf=2+1 QCD from the spectrum of the staggered Dirac operatorWe compute the chiral condensate of 2+1 QCD from the mode number of the staggered Dirac operator, performing controlled extrapolations to both the continuum and the chiral limit. We consider also…Claudio Bonanno, Francesco D'Angelo, Massimo D'Elia·Aug 2, 2023SaveLearn
Sphaleron rate of Nf=2+1 QCDWe compute the sphaleron rate of Nf=2+1 QCD at the physical point for a range of temperatures 200 MeV T 600 MeV. We adopt a strategy recently applied in the quenched case,…Claudio Bonanno, Francesco D'Angelo, Massimo D'Elia et al.·Aug 2, 2023SaveLearn
Deconfinement Phase Transition in Bosonic BMN Model at General CouplingWe present our analysis of the deconfinement phase transition in the bosonic BMN matrix model. The model is investigated using a non-perturbative lattice framework. We used the Polyakov loop as the…Navdeep Singh Dhindsa, Anosh Joseph, Abhishek Samlodia et al.·Aug 1, 2023SaveLearn
Investigating Spontaneous SO(10) Symmetry Breaking in Type IIB Matrix ModelNon-perturbative formulations are essential to understand the dynamical compactification of extra dimensions in superstring theories. The type IIB (IKKT) matrix model in the large-N limit is one…Arpith Kumar, Anosh Joseph, Piyush Kumar·Aug 1, 2023SaveLearn
Quantum tunneling in the real-time path integral by the Lefschetz thimble methodQuantum tunneling is mostly discussed in the Euclidean path integral formalism using instantons. On the other hand, it is difficult to understand quantum tunneling based on the real-time path…Jun Nishimura·Aug 1, 2023SaveLearn
Calculating composite-particle spectra in Hamiltonian formalism and demonstration in 2-flavor QED1+1dWe consider three distinct methods to compute the mass spectrum of gauge theories in the Hamiltonian formalism: (1) correlation-function scheme, (2) one-point-function scheme, and (3)…Etsuko Itou, Akira Matsumoto, Yuya Tanizaki·Jul 31, 2023SaveLearn
Gauge-independent transition dividing the confinement phase in the lattice SU(2) gauge-adjoint scalar modelThe lattice SU(2) gauge-scalar model with the scalar field in the adjoint representation of the gauge group has two completely separated confinement and Higgs phases according to the preceding…Akihiro Shibata, Kei-Ichi Kondo·Jul 29, 2023SaveLearn
Exploiting stochastic locality in lattice QCD: hadronic observables and their uncertaintiesBecause of the mass gap, lattice QCD simulations exhibit stochastic locality: distant regions of the lattice fluctuate independently. There is a long history of exploiting this to increase statistics…Mattia Bruno, Marco Cè, Anthony Francis et al.·Jul 28, 2023SaveLearn
Stochastic automatic differentiation for Monte Carlo processesMonte Carlo methods represent a cornerstone of computer science. They allow to sample high dimensional distribution functions in an efficient way. In this paper we consider the extension of Automatic…Guilherme Catumba, Alberto Ramos, Bryan Zaldivar·Jul 28, 2023SaveLearn
Lattice quantum chromodynamics at large isospin density: 6144 pions in a boxWe present an algorithm to compute correlation functions for systems with the quantum numbers of many identical mesons from lattice quantum chromodynamics (QCD). The algorithm is numerically stable…Ryan Abbott, William Detmold, Fernando Romero-López et al.·Jul 27, 2023SaveLearn
Control variates for lattice field theoryIn most lattice field theories, correlators are plagued by a signal-to-noise problem of exponential difficulty in the time separation. We propose a method for improving the signal-to-noise ratio, in…Tanmoy Bhattacharya, Scott Lawrence, Jun-Sik Yoo·Jul 27, 2023SaveLearn
Confronting axial-vector form factor from lattice QCD with MINERvA antineutrino-proton dataWe compare recent MINERvA antineutrino-hydrogen charged-current measurements to phenomenological predictions of the axial-vector form factor based on fits to all available electron scattering and…Oleksandr Tomalak, Rajan Gupta, Tanmoy Bhattacharya·Jul 27, 2023SaveLearn
Bound isoscalar axial-vector bc u d tetraquark Tbc from lattice QCD using two-meson and diquark-antidiquark variational basisWe report a lattice QCD study of the heavy-light meson-meson interactions with an explicitly exotic flavor content bc u d, isospin I\!=\!0, and axialvector JP=1+ quantum numbers in…M. Padmanath, Archana Radhakrishnan, Nilmani Mathur·Jul 26, 2023SaveLearn
Investigating the Two-Dimensional Generalized XY Model using Tensor NetworksThe critical behavior of the two-dimensional XY model has been explored in the literature using various methods. They include the high-temperature expansion (HTE) method, Monte Carlo (MC) approach,…Vamika Longia, Anosh Joseph, Abhishek Samlodia·Jul 25, 2023SaveLearn
Lattice QCD study of π-KN scattering and the (1405) resonanceA lattice QCD computation of the coupled channel π-KN scattering amplitudes in the (1405) region is detailed. Results are obtained using a single ensemble of gauge field…John Bulava, Bárbara Cid-Mora, Andrew D. Hanlon et al.·Jul 25, 2023SaveLearn
Toward extracting scattering phase shift from integrated correlation functionIn present work, a relation that connects the integrated correlation function of a trapped two-particle system to infinite volume particles scattering phase shift is derived. It has the potential to…Peng Guo, Vladimir Gasparian·Jul 24, 2023SaveLearn
Elastic Nucleon-Pion scattering amplitudes in the channel at physical pion mass from Lattice QCDWe present an investigation of pion-nucleon elastic scattering in the I\,(JP) = 32\,(32+) channel using lattice QCD with degenerate up and down, strange and charm quarks with…Constantia Alexandrou, Simone Bacchio, Giannis Koutsou et al.·Jul 24, 2023SaveLearn
Anomalous Dimensions at an Infrared Fixed Point in an SU(Nc) Gauge Theory with Fermions in the Fundamental and Antisymmetric Tensor RepresentationsWe present scheme-independent calculations of the anomalous dimensions γ,IR and γ,IR of fermion bilinear operators and at an…Thomas A. Ryttov, Robert Shrock·Jul 23, 2023SaveLearn