The realization and control of large-scale quantum systems is an exciting frontier of modern physical science. Using a novel cold atom platform, we trap single neutral atoms in an array of optical tweezers, and use real-time feedback to prepare defect-free chains of tens of atoms in one dimension with a high fidelity and repetition rate. Excitation of the atoms to Rydberg states enables strong and tunable van der Waals interactions over long distances, which allows for engineering an Ising-type Hamiltonian with non-trivial spatial correlations between Rydberg atoms. Employing adiabatic transitions into crystalline states of Rydberg atoms, we study the properties of the system close to a phase transition. Furthermore, we study the quench dynamics of Rydberg crystals and uncover signatures of entanglement in Rydberg chains.
Special CM Seminar, Ahmed Omran, Harvard, "Quantum dynamics of strongly interacting atom arrays""
Wed, May 17, 2017, 1:30 pm