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String Breaking in the Heavy Quark Limit with Scalable Circuits
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String Breaking in the Heavy Quark Limit with Scalable Circuits
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Quantum simulations of non-Abelian gauge theories require efficient mappings onto quantum computers and practical state preparation and measurement procedures. A truncation of the Hilbert space of non-Abelian lattice gauge theories with matter in the heavy quark limit is developed. This truncation is applied to $SU(2)$ lattice gauge theory in $1+1D$ to map the theory efficiently onto a quantum computer. Scalable variational circuits are found to prepare the vacuum and single meson states. It is also shown how these state preparation circuits can be used to perform measurements of the number of mesons produced during the system's time evolution. A state with a single $q\overline{q}$ pair is prepared on quantum hardware and the inelastic production of $q\overline{q}$ pairs is observed using $104$ qubits on IBM's Heron quantum computer ibm_torino.
Forward citations
Cited by 7 Pith papers
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Hadronic scattering in (1+1)D SU(2) lattice gauge theory from tensor networks
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Thermalization of SU(2) Lattice Gauge Fields on Quantum Computers
Quantum hardware simulation of SU(2) lattice gauge thermalization matches classical extrapolations up to 101 plaquettes after error mitigation, establishing feasibility for chaotic quantum field systems.
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Disorder-Free Localization and Fragmentation in a Non-Abelian Lattice Gauge Theory
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Direct measurement of chromo-electric flux-tube profiles in lattice QCD with physical quark masses indicates string breaking occurs at a quark-antiquark separation between 0.963 and 1.156 fm.
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Holographic Schwinger pair creation generates nonlocal magic for spacetime dimensions d>2, as shown by a non-flat entanglement spectrum that can be read from the probe brane free energy.
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The Quantum Complexity of String Breaking in the Schwinger Model
Quantum complexity measures applied to the Schwinger model reveal nonlocal correlations along the string and show that entanglement and magic give complementary views of string formation and breaking.
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A Framework for Quantum Simulations of Energy-Loss and Hadronization in Non-Abelian Gauge Theories: SU(2) Lattice Gauge Theory in 1+1D
A quantum simulation framework is developed and demonstrated for energy loss and hadronization of a heavy quark in 1+1D SU(2) lattice gauge theory on 18 qubits of IBM hardware, with results matching classical simulations.
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