Quantum superpositions of current states in Rydberg-atom networks

• URL: http://arxiv.org/abs/2403.03202v3
• Date: Wed, 10 Jul 2024 06:10:56 GMT
• Title: Quantum superpositions of current states in Rydberg-atom networks
• Authors: Francesco Perciavalle, Davide Rossini, Juan Polo, Oliver Morsch, Luigi Amico,
• Abstract summary: We propose a quantum optimal control protocol to engineer current states. quantum states characterized by Rydberg excitations propagating in a given spatially closed tweezer networks.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum simulation of many-body quantum systems using Rydberg-atom platforms has become of extreme interest in the last years. The possibility to realize spin Hamiltonians and the accurate control at the single atom level paved the way for the study of quantum phases of matter and dynamics. Here, we propose a quantum optimal control protocol to engineer current states: quantum states characterized by Rydberg excitations propagating in a given spatially closed tweezer networks. Indeed, current states with different winding numbers can be generated on demand. Besides those ones with single winding number, superposition of quantum current states characterized by more winding numbers can be obtained. The single current states are eigenstates of the current operator that therefore can define an observable that remains persistent at any time. In particular, the features of the excitations dynamics reflects the nature of current states, a fact that in principle can be used to characterize the nature of the flow experimentally without the need of accessing high order correlators.

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