Quantum Simulation

BEC2016 Quantum gases and quantum coherence, Salerno (Italy), 1–3 September 2016

Talk by Antoine Browaeys: "Implementation of spin hamiltonians in arrays of individual Rydberg atoms"

European Conference on Trapped Ions, Arosa (Switzerland), 29–31 August 2016

Talk by Antoine Browaeys: "Implementation of spin hamiltonians in arrays of individual Rydberg atoms"

Gordon research conference on Quantum Science, Stonehill College, (USA), 1–5 August 2016

Talk by Antoine Browaeys: "Implementation of spin hamiltonians in arrays of individual Rydberg atomsQuantum simulation of Ising-type Hamiltonians in tunable 2D arrays of single Rydberg atoms"

COLOQ'15, Congrès OPTIQUE 2016, Bordeaux (France), 4-7 July 2016

Talk by Daniel Barredo: "Quantum simulation of Ising-type Hamiltonians in tunable 2D arrays of single Rydberg atoms"

Correlation and order in Rydberg gases, Leyden (the Netherlands), 1–3 June 2016

Talk by Antoine Browaeys: "Gates, entanglement, many-body physics and all that using individual Rydberg atoms"

Many-Body physics with synthetic quantum systems, Stellenbosch (South Africa), 4–8 April 2016

Talk by Antoine Browaeys: "Implementation of the Quantum Ising model in arrays of individual Rydberg atoms"

Facilitation Dynamics and Localization Phenomena in Rydberg Lattice Gases with Position Disorder

Date: 
2017-02-10
Author(s): 

Matteo Marcuzzi, Jiří Minář, Daniel Barredo, Sylvain de Léséleuc, Henning Labuhn, Thierry Lahaye, Antoine Browaeys, Emanuele Levi & Igor Lesanovsky

Reference: 

Phys. Rev. Lett. 118, 063606 (2017)

We explore the dynamics of Rydberg excitations in an optical tweezer array under antiblockade (or facilitation) conditions. Because of the finite temperature the atomic positions are randomly spread, an effect that leads to quenched correlated disorder in the interatomic interaction strengths. This drastically affects the facilitation dynamics as we demonstrate experimentally on the elementary example of two atoms.

An atom-by-atom assembler of defect-free arbitrary two-dimensional atomic arrays

Date: 
2016-11-25
Author(s): 

Daniel Barredo, Sylvain de Léséleuc, Vincent Lienhard, Thierry Lahaye & Antoine Browaeys

Reference: 

Science 354, 1021 (2016)

Large arrays of individually controlled atoms trapped in optical tweezers are a very promising platform for quantum engineering applications. However, to date, only disordered arrays have been demonstrated, due to the non-deterministic loading of the traps. Here, we demonstrate the preparation of fully loaded, two-dimensional arrays of up to 50 microtraps each containing a single atom, and arranged in arbitrary geometries.

Experimental investigations of dipole–dipole interactions between a few Rydberg atoms

Date: 
2016-06-30
Author(s): 

Antoine Browaeys, Daniel Barredo & Thierry Lahaye

Reference: 

J. Phys. B 49, 152001 (2016)

This review summarizes experimental works performed over the last decade by several groups on the manipulation of a few individual interacting Rydberg atoms. These studies establish arrays of single Rydberg atoms as a promising platform for quantum-state engineering, with potential applications to quantum metrology, quantum simulation and quantum information.

Tunable two-dimensional arrays of single Rydberg atoms for realizing quantum Ising models

Date: 
2016-06-30
Author(s): 

Henning Labuhn, Daniel Barredo, Sylvain Ravets, Sylvain de Léséleuc, Tommaso Macrì, Thierry Lahaye & Antoine Browaeys

Reference: 

Nature 534, 667–670 (2016)

Many proof-of-principle platforms for quantum simulation of spin models such as the Ising model have been implemented. It has proved difficult to produce a design with sufficient flexibility to realize arbitrary geometries and variable distance, however. Here, the authors have developed a platform that achieves this flexibility with large atom numbers. The setup is based on arrays of optical microtraps. Creating spin chains with periodic boundary conditions, the authors study the dynamics of an Ising-like spin system with 30 spins.

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