Recent successes in producing intermediate-scale quantum devices have focused interest
on establishing whether near-term devices could outperform classical computers for …

The impressive progress in quantum hardware of the last years has raised the interest of the
quantum computing community in harvesting the computational power of such devices …

We design a quantum algorithm for ground state preparation in the early fault tolerant
regime. As a Monte Carlo style quantum algorithm, our method features a Lindbladian …

Numerous quantum error-mitigation protocols have been proposed, motivated by the critical
need to suppress noise effects on intermediate-scale quantum devices. Yet, their general …

Preparing ground states and thermal states is essential for simulating quantum systems on
quantum computers. Despite the hope for practical quantum advantage in quantum …

The thermal or equilibrium ensemble is one of the most ubiquitous states of matter. For
models comprised of many locally interacting quantum particles, it describes a wide range of …

Finding ground states of quantum many-body systems is known to be hard for both classical
and quantum computers. As a result, when Nature cools a quantum system in a low …

Preparing thermal and ground states is an essential quantum algorithmic task for quantum
simulation. In this work, we construct the first efficiently implementable and exactly detailed …

We prove that spin chains weakly coupled to a large heat bath thermalize rapidly at any
temperature for finite-range, translation-invariant commuting Hamiltonians, reaching …

Estimating physical properties of quantum states from measurements is one of the most
fundamental tasks in quantum science. In this work, we identify conditions on states under …