Jordi Tura

Faster ground state preparation and high-precision ground energy estimation with fewer qubits

2019 · Journal of Mathematical Physics

We propose a general-purpose quantum algorithm for preparing ground states of quantum Hamiltonians from a given trial state. The algorithm is based on techniques recently developed in the context of solving the quantum linear system …

Robust self-testing of steerable quantum assemblages and its applications on device-independent quantum certification

2021 · Quantum

Given a Bell inequality, if its maximal quantum violation can be achieved only by a single set of measurements for each party or a single quantum state, up to local unitaries, one refers to such …

Approximation and Generalization Capacities of Parametrized Quantum Circuits for Functions in Sobolev Spaces

2023 · arXiv (Cornell University)

Parametrized quantum circuits (PQC) are quantum circuits which consist of both fixed and parametrized gates. In recent approaches to quantum machine learning (QML), PQCs are essentially ubiquitous and play the role analogous to classical neural …