Observation of collective excitation of two individual atoms in the Rydberg blockade regime

Abstract

The dipole blockade between Rydberg atoms has been proposed as a basic tool in quantum information processing with neutral atoms. Here we demonstrate experimentally the Rydberg blockade of two individual atoms separated by 4 $\mu$m. Moreover, we show that, in this regime, the single atom excitation is enhanced by a collective two-atom behavior associated with the excitation of an entangled state. This observation is a crucial step towards the deterministic manipulation of entanglement of two or more atoms using the Rydberg dipole interaction.

5 pages, 4 figures

References in corpus (9)

• Observation of Rydberg blockade between two atoms
• Evidence for coherent collective Rydberg excitation in the strong blockade regime
• Consequences of Zeeman Degeneracy for van der Waals Blockade between Rydberg Atoms
• Energy distribution and cooling of a single atom in an optical tweezer
• Rydberg excitation of Bose-Einstein condensates
• Counting atoms using interaction blockade in an optical superlattice
• Spatially resolved observation of dipole-dipole interaction between Rydberg atoms
• Spectroscopic observation of resonant electric dipole-dipole interactions between cold Rydberg atoms
• Fast Quantum State Control of a Single Trapped Neutral Atom

Cited by in corpus (453)

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• Inhomogeneities and impurities in a dense one-dimensional Rydberg lattice gas
• Correlated Diskoid-like Electronic States
• Single Photon Superradiance and Subradiance as Collective Emission From Symmetric and Antisymmetric States
• Detecting prethermal Floquet phases of Rydberg atom arrays
• Electronic sideband locking of 318.6nm UV laser to an ultrastable optical cavity with a wide continuously tunable range
• Rapid Preparation of Rydberg Superatom W State Using Superadiabatic Techniques
• Harnessing a 256-qubit Neutral Atom Simulator for Graph Classification
• Emergence of Spatial Order in Highly Interacting Rydberg Gases
• Accurate density measurement of a cold Rydberg gas via non collisional two-body transitions
• Rydberg-atom manipulation through strong interaction with free electrons
• Graph Coloring via Quantum Optimization on a Rydberg-Qudit Atom Array
• Fast and robust cat state preparation utilizing higher order nonlinearities in Rydberg ensembles
• Bosonic Quantum Dynamics Following Colliding Potential Wells
• Dipole blockade without dipole-dipole interaction
• Ultrafast many-body dynamics of dense Rydberg gases and ultracold plasma
• One-step preparation of 3D Bell and 3D GHZ states with Rydberg atoms
• Quantifying the impact of state mixing on the Rydberg excitation blockade
• Shortcuts to Analog Preparation of Non-Equilibrium Quantum Lakes
• Dissipative engineering a tripartite Greenberger-Horne-Zeilinger state for neutral atoms
• The Virtual Quantum Device (VQD): A tool for detailed emulation of quantum computers
• Study of Rydberg blockade in thermal vapor
• Attributed-graphs kernel implementation using local detuning of neutral-atoms Rydberg Hamiltonian
• Rydberg atoms for electric field gradiometry