Optimal control of Rydberg lattice gases. (2nd August 2017)

• Record Type: Journal Article
• Authors: Cui, Jian; Rick van Bijnen, ; Pohl, Thomas; Montangero, Simone; Calarco, Tommaso
• Is Part Of: Quantum science and technology. Volume 2:Number 3(2017)
• Publication Date: 2017-08-02
• Subjects: Rydberg atoms -- optimal control -- quantum simulator -- GHZ states -- crystalline states; Quantum theory -- Periodicals; Quantum theory; Periodicals; 530
• DOI: 10.1088/2058-9565/aa7daf
• Languages: English
• ISSNs: 2058-9565

Abstract

Abstract: We present optimal control protocols to prepare different many-body quantum states of Rydberg atoms in optical lattices. Specifically, we show how to prepare highly ordered many-body ground states, GHZ states as well as some superposition of symmetric excitation number Fock states, that inherit the translational symmetry from the Hamiltonian, within sufficiently short excitation times minimising detrimental decoherence effects. For the GHZ states, we propose a two-step detection protocol to experimentally verify the optimised preparation of the target state based only on standard measurement techniques. Realistic experimental constraints and imperfections are taken into account by our optimisation procedure making it applicable to ongoing experiments.