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Hadrons in (1+1)D Hamiltonian hardcore lattice QCD
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Hadrons in (1+1)D Hamiltonian hardcore lattice QCD
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We 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 redundancy is absent and construct a gauge invariant tensor network ansatz. We show that the model is critical in an extended subregion of parameter space and identify at least two distinct phases, one of which embeds the continuum limit location. We reconstruct a subset of the particle spectrum in each phase, identifying edge and bulk gapless modes. We thereby show that the studied model provides a minimal SU(3) gauge theory whilst reproducing known phenomena of (3+1)D QCD. Most notably, it features charged pions.
Forward citations
Cited by 2 Pith papers
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Preparation and detection of quasiparticles for quantum simulations of scattering
A method using dressed creation operators from MLWFs enables selective preparation and detection of quasiparticles in lattice theories, tested via MPS on hardcore QCD ladders to separate known excitations from resonances.
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Fermion Discretization Effects in the Two-Flavor Lattice Schwinger Model: A Study with Matrix Product States
Twisted mass fermions in the Hamiltonian two-flavor Schwinger model yield O(a) improvement and milder finite-volume effects once mass renormalization tunes the system to maximal twist.
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