Quantum simulations with atoms in nano-structures

Prof Ignacio Cirac, Max Planck Institute for Quantum Optics, Garching, Germany

15:00 Donnerstag, 05. November 2015

Prof Ignacio Cirac, Max Planck Institute for Quantum Optics, Garching, Germany


Abstract:

Many-body quantum systems are very hard to simulate with classical computers, as the running time increases exponentially with the size of the system. Quantum simulation offers a way to circumvent this problem. A quantum simulator is a system where interactions can be engineered, such that its dynamics correspond to the ones of the system one wants to emulate. Ultra-cold atoms in optical lattices can be used for that purpose; in particular, to simulate many-body problems that appear in strongly-correlated systems.

In this talk I will briefly review the field of quantum simulations and show how photonic crystal structures can be used to design subwavelength optical lattices in two dimensions for ultracold atoms, achieving a better peformance than current experimental set-ups. Furthermore, guided modes can be used for photon-induced large and strongly long-range interactions between trapped atoms, giving rise to quantum simulations which cannot be performed with other systems.


About DLS:

The Distinguished Lecturer Series (DLS) follows a colloquium format for a broad audience and will be followed by a reception to provide an opportunity for meeting the speaker.

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