A factorization of the parent Hamiltonian into noncommutative first-order operators enables a walk-free QSVT algorithm with quadratic gap improvement for preparing purified Gibbs states under exact KMS detailed balance.
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A new QMC estimator shows diverging superfluid density in the long-range 1d XY model as the interaction exponent alpha approaches zero.
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Accelerating quantum Gibbs sampling without quantum walks
A factorization of the parent Hamiltonian into noncommutative first-order operators enables a walk-free QSVT algorithm with quadratic gap improvement for preparing purified Gibbs states under exact KMS detailed balance.
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Superfluidity in the spin-1/2 XY model with power-law interactions
A new QMC estimator shows diverging superfluid density in the long-range 1d XY model as the interaction exponent alpha approaches zero.