A variational framework assisted by matrix product states prepares approximate thermal Gibbs states for 1D lattices up to 30 sites and 2D lattices up to 6x6 using up to 44 qubits, with a demonstration on IBM Heron hardware.
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Diabatic quantum annealing offers a controllable unitary Boltzmann sampler with temperature determined by annealing rate, achieving accurate results for ferromagnetic Ising and SK models in the high-temperature regime.
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Variational Thermal State Preparation on Digital Quantum Processors Assisted by Matrix Product States
A variational framework assisted by matrix product states prepares approximate thermal Gibbs states for 1D lattices up to 30 sites and 2D lattices up to 6x6 using up to 44 qubits, with a demonstration on IBM Heron hardware.
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Boltzmann Sampling by Diabatic Quantum Annealing
Diabatic quantum annealing offers a controllable unitary Boltzmann sampler with temperature determined by annealing rate, achieving accurate results for ferromagnetic Ising and SK models in the high-temperature regime.