OSC Colloquium: Ivan Deutsch

    Thursday, April 21, 2022 - 3:30pm - 5:00pm
    Meinel 307

    Title: “Quantum Computing with Neutral Atoms”


    One of the earliest proposals for scalable quantum computers was optically trapped, ultracold neutral atoms.  Like their more famous cousins, atomic ions, qubits encoded in the energy levels of neutral atoms are all identical, can have long coherence times, and can be controlled with a variety of magneto-optical fields, with tools that build on decades of development for atomic clocks and precision metrology.  Unlike with ions, quantum computing architectures have proceeded more slowly, as neutral atoms are harder to trap and they only weakly interact in their ground state.  New developments in trapping and laser technology has now opened the door to high-fidelity operation with potentially hundreds to thousands of qubits - neutral atoms are back in the game!  In this colloquium I will discuss how high-fidelity quantum logic can be implemented through coherent control of superpositions of atoms in ground and highly excited Rydberg states.  I will describe how optimal control can be used to implement a variety of protocols for quantum information processing with neutral atoms, including performing quantum logic with “qudecimals" (d=10 dimensional systems) encoded in nuclear spins.

    Speaker Bio(s): 

    Ivan Deutsch is a Quantum Information Scientist (QIS) with expertise in quantum optics and atomic-molecular-optical physics. He received his PhD at UC Berkeley in 1992 and joined the faculty at the University of New Mexico in 1995 where he has been ever since building the program in QIS, and where he is now the Director of the Center for Quantum Information and Control (CQuIC). Some of his research advances include the prediction of two-photon bond states and quantum solitons in nonlinear optics, quantum computing with neutral atoms, new approaches to quantum control, measurement and tomography, and studies of quantum chaos and nonlinear dynamics and their relationship to QIS.


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