Quasifragmentation functions in the massive Schwinger model
arXiv:2406.01891 · doi:10.1103/PhysRevD.110.116009
Abstract
We introduce the concept of the quark quasifragmentation function (qFF) using an equal-time and spatially boosted form of the Collins-Soper fragmentation function where the out-meson fragment is replaced by the current asymptotic condition. We derive the qFF for a fermion in two-dimensional quantum electrodynamics (QED2) using the Kogut-Susskind Hamiltonian after a mapping onto spin qubits in a spatial lattice with open boundary conditions. This form is suitable for quantum computations. We compute the qFF by exact diagonalization of the spin Hamiltonian. The results are compared to the qFF following from the Drell-Levy-Yan result for QED2, both at strong and weak coupling, and to two-dimensional quantum chromodynamics in the lowest Fock approximation.
10+3 pages; 7+2 figures; v2: matches version published in PRD; title change to conform with APS conventions
References in corpus (36)
- Parton Physics on Euclidean Lattice
- Quantum-Classical Computation of Schwinger Model Dynamics using Quantum Computers
- Parton Fragmentation Functions
- Extracting Parton Distribution Functions from Lattice QCD Calculations
- Factorization Theorem Relating Euclidean and Light-Cone Parton Distributions
- Pion Distribution Amplitude from Lattice QCD
- Transversity parton distribution functions from lattice QCD
- Valence parton distribution function of pion from fine lattice
- Pion distribution amplitude from Euclidean correlation functions: Exploring universality and higher-twist effects
- Quantum simulation of non-equilibrium dynamics and thermalization in the Schwinger model
- Parton Physics on a Quantum Computer
- Dynamical topological transitions in the massive Schwinger model with a θ-term
- Dynamics of entanglement in expanding quantum fields
- Real-time chiral dynamics from a digital quantum simulation
- Thermal excitation spectrum from entanglement in an expanding quantum string
- Transverse Momentum Dependent Fragmentation and Quark Distribution Functions from the NJL-jet Model
- Entanglement generation in QED scattering processes
- Real-time non-perturbative dynamics of jet production: quantum entanglement and vacuum modification
- Fermion-qudit quantum processors for simulating lattice gauge theories with matter
- Partonic collinear structure by quantum computing
- Determining the proton content with a quantum computer
- Simulating Hadronic Physics on NISQ devices using Basis Light-Front Quantization
- High-Energy Collision of Quarks and Mesons in the Schwinger Model: From Tensor Networks to Circuit QED
- The NJL-jet model for quark fragmentation functions
- Solving hadron structures using the basis light-front quantization approach on quantum computers
- Quantum Simulation of Light-Front Parton Correlators
- Pion Distribution Amplitude and Quasi-Distributions
- Liouvillian Dynamics of the Open Schwinger Model: String Breaking and Kinetic Dissipation in a Thermal Medium
- Quasiparton distributions in massive QED2: Toward quantum computation
- Gibbs entropy from entanglement in electric quenches
- Entanglement in a holographic Schwinger pair with confinement
- Fragmentation functions and parton distribution functions for the pion with the nonlocal interactions
- Entanglement in massive Schwinger model at finite temperature and density
- Exploring Light-Cone Distribution Amplitudes from Quantum Computing
- Entanglement entropy in a time-dependent holographic Schwinger pair creation
- Real-time Dynamics of the Schwinger Model as an Open Quantum System with Neural Density Operators
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- Efficient Quantum Simulation of QCD Jets on the Light Front
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- Global analysis of fragmentation functions to light neutral hadrons
- Quantum dynamics of cosmological particle production: interacting quantum field theories with matrix product states
- Quantum Simulation of QED in Coulomb Gauge
- Quantum computing of chirality imbalance in SU(2) gauge theory
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