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Quantum Simulation of Lattice Gauge Theories in more than One Space Dimension -- Requirements, Challenges, Methods
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abstract
Over the recent years, the relatively young field of quantum simulation of lattice gauge theories - aiming at implementing simulators of gauge theories with quantum platforms, has gone through a rapid development process. It is now of interest not only to people in the quantum information and technology community, but also seen as a valid tool for tackling hard, nonperturbative gauge theory physics by more and more particle and nuclear physicists. Along the theoretical progress, nowadays more and more experiments which actually implement such simulators are being reported, manifesting beautiful results, but mostly on $1+1$ dimensional physics. In this paper, we review the essential ingredients and requirements of lattice gauge theories in more dimensions, discuss their meanings, the challenges they impose and how they could be dealt with, potentially, aiming at the next steps of this field towards simulating challenging physical problems.
Forward citations
Cited by 8 Pith papers
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Binary Gauss Stabilizers for Abelian Lattice Gauge Theories
Binary Gauss stabilizers provide a non-Pauli stabilizer description of the physical subspace of Z_{2^η} lattice gauge theories, enabling bit-flip error correction and gauge fixing from gauge constraints alone.
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Local 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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Probing Hadron Scattering in Lattice Gauge Theories on Qudit Quantum Computers
Proposed qudit circuits simulate meson-antimeson scattering in a spin-1 U(1) lattice gauge theory and remain accurate under realistic dephasing and depolarization noise.
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Efficient Qudit Circuit for Quench Dynamics of $2+1$D Quantum Link Electrodynamics
A matter-integrated-out reformulation of 2+1D U(1) quantum link electrodynamics is translated into explicit qudit circuits, with Trotterized simulations matching exact dynamics on small lattices.
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String Breaking Dynamics and Glueball Formation in a $2+1$D Lattice Gauge Theory
In a 2+1D Z2 lattice gauge theory, string breaking happens only at specific resonances set by field strength and matter mass, while long strings can dynamically form closed electric loops analogous to glueballs.
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Observation of hadron scattering in a lattice gauge theory on a quantum computer
The authors observe elastic and confined scattering, plus mass-quench-induced inelastic dynamics, in a 1+1D U(1) lattice gauge theory on IBM quantum hardware.
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Effects of monitoring on entanglement dynamics for $1+1$D $\mathbb Z_2$ lattice gauge theory
In the no-click limit, both local and non-local monitoring of a 1+1D Z2 lattice gauge theory produce late-time entanglement saturation values that are independent of system size, giving no evidence of a measurement-in...
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