Hannes Pichler

TL;DR: This work demonstrates a method for creating controlled many-body quantum matter that combines deterministically prepared, reconfigurable arrays of individually trapped cold atoms with strong, coherent interactions enabled by excitation to Rydberg states, and realizes a programmable Ising-type quantum spin model with tunable interactions and system sizes of up to 51 qubits.

TL;DR: E engineered directional photonic reservoirs could lead to the development of complex quantum networks that, for example, could simulate novel classes of quantum many-body systems.

TL;DR: In this article, a new parameter optimization method for a hybrid quantum-classical algorithm is proposed to exploit novel mechanisms to speed up computational time by orders of magnitude, which can be applied to a number of quantum algorithms.

TL;DR: In this article, a programmable quantum simulator based on neutral atom arrays with interactions mediated by Rydberg states was used to demonstrate the creation of "Schrodinger cat" states of the Greenberger-Horne-Zeilinger (GHZ) type with up to 20 qubits.

TL;DR: Entanglement of up to 20 qubits is achieved in superconducting and trapped atom platforms and “Schrödinger cat” states of the Greenberger-Horne-Zeilinger (GHZ) type with up to20 qubits are created, establishing important ingredients for quantum information processing and quantum metrology.