RySQ

Quantum Crystals and Laughlin Droplets of Cavity Rydberg Polaritons

Date: 
2015-06-02
Author(s): 

Ariel Sommer, Hans Peter Büchler, and Jonathan Simon

Reference: 

arxiv:1506.00341

Synthetic quantum materials offer an exciting opportunity to explore quantum many-body physics and novel states of matter under controlled conditions. In particular, they provide an avenue to exchange the short length scales and large energy scales of the solid state for an engineered system with better control over the system Hamiltonian, more accurate state preparation, and higher fidelity state readout.

Seeded excitation avalanches in off-resonantly driven Rydberg gases

Date: 
2016-03-09
Author(s): 

C. Simonelli, M.M. Valado, G. Masella, L. Asteria, E. Arimondo, D. Ciampini, O. Morsch

Reference: 

Journal of Physics B: Atomic, Molecular and Optical Physics 49 (15), 154002 and arXiv:1602.01257

We report an experimental investigation of the facilitated excitation dynamics in off-resonantly driven Rydberg gases by separating the initial off-resonant excitation phase from the facilitation phase, in which successive facilitation events lead to excitation avalanches. We achieve this by creating a controlled number of initial seed excitations. Greater insight into the avalanche mechanism is obtained from an analysis of the full counting distributions.

Experimental observation of controllable kinetic constraints in a cold atomic gas

Date: 
2016-03-09
Author(s): 

M.M. Valado, C. Simonelli, M.D. Hoogerland, I. Lesanovsky, J.P. Garrahan, E. Arimondo, D. Ciampini, O. Morsch

Reference: 

Physical Review A 93, 040701 (2016)

Many-body systems relaxing to equilibrium can exhibit complex dynamics even if their steady state is trivial. In situations where relaxation requires highly constrained local particle rearrangements, such as in glassy systems, this dynamics can be difficult to analyse from first principles.

Symposium on "Rydberg atoms for quantum technologies", OIST, Okinawa, March 3rd-5th 2016

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

Physics of Quantum Electronics, Snowbird, January 3rd-8th 2016

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

XIV International Conference on Quantum Optics and Quantum Information, Minsk, 27–30 October, 2015

Talk by Daniel Barredo: "Quantum simulation of spin systems using 2D arrays of single Rydberg atoms".

Predoctoral school "Ultracold atoms", Les Houches, 14–25 Septembre 2015

3 lectures on "Cold Rydberg atoms" by Thierry Lahaye.

XXIII Congrès Général Société Française, Strasbourg, 24–28 August, 2015

Talk by Daniel Barredo: "Quantum engineering with 2D arrays of single Rydberg atoms".

EGAS–47th conference of the European Group of Atomic Systems, Riga, 14-17 July, 2015

Talk by Daniel Barredo: "Excitation transfer dynamics in systems of individual Rydberg atoms".

46th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics, Columbus, June 8–12, 2015

Talk by Antoine Browaeys: "Experimental investigation of dipole-dipole interaction between few Rydberg atoms".

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