Hannover 2016 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 12: Ultracold plasmas and Rydberg systems I (with Q)

A 12.2: Vortrag

Montag, 29. Februar 2016, 17:15–17:30, f303

Non adiabatic quantum state preparation with Rydberg atoms — •Jiří Minář, Matteo Marcuzzi, Emanuele Levi, and Igor Lesanovsky — School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, United Kingdom

We propose a non-adiabatic protocol to create antiferromagnetic GHZ states in a chain of Rydberg atoms. The proposed implementation relies on the blockade mechanism between atoms in Rydberg states and individual site addressing. The procedure is then generalized in order to create ground states of a many body Rokhsar-Kivelson Hamiltonian, which describes the physics of a one dimensional spin-half chain with repulsive long range interactions. We analyze the performance of the scheme accounting for various effects, such as the interplay between the repulsive interaction strength and the Rabi frequency of the addressing beam, the effect of the tails of the long range interaction or the robustness with respect to the noise in the experimental parameters.