Sergio Boixo

Barren plateaus in quantum neural network training landscapes

Many experimental proposals for noisy intermediate scale quantum devices involve training a parameterized quantum circuit with a classical optimization loop. Such hybrid quantum...

Defining and detecting quantum speedup

How to benchmark a quantum computer Quantum machines offer the possibility of performing certain computations much faster than their classical counterparts. However, how to defi...

A blueprint for demonstrating quantum supremacy with superconducting qubits

Scaling up to supremacy Quantum information scientists are getting closer to building a quantum computer that can perform calculations that a classical computer cannot. It has b...

Quantum Simulations of Classical Annealing Processes

We describe a quantum algorithm that solves combinatorial optimization problems by quantum simulation of a classical simulated annealing process. Our algorithm exploits quantum ...

Characterizing quantum supremacy in near-term devices

Efficient population transfer via non-ergodic extended states in quantum spin glass

We analyze a new computational role of coherent multi-qubit quantum tunneling that gives rise to bands of non-ergodic extended (NEE) quantum states each formed by a superpositio...