JILA Auditorium

Quantum Signal Processing: Making Schrödinger Cats and Other Exotic States of Microwave PhotonsGauge Theories

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Abstract: The Schrödinger Cat idea was an early thought experiment intended to point out the weirdness of quantum mechanics. It is a paradigmatic example of the quantum principles of superposition and entanglement. With the vast experimental progress in the last two decades, we can now routinely carry out this experiment in the laboratory.

Molecules under new light

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New tools of light for increasingly refined observation and control of molecules are providing new opportunities to study complex structure and emergent quantum properties, to set new bounds for fundamental symmetry, to probe real-time reaction kinetics, and to apply molecular sensing for medical diagnosis. Meanwhile, quantum gases of molecules constitutes an outstanding experimental platform for precise quantum state engineering and control of inter-molecular interactions, enabling exploration of novel chemical reactions and quantum magnetism.

CANCELLED: Surface and Interface Engineering for Reversible Electrochemistry

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Abstract: Electrochemistry involves chemical reactions that are driven by the movement of electrons and ions, typically occurring at surfaces or interfaces. A key example is rechargeable batteries, where ions migrate through the liquid electrolyte and electrons flow through the external circuit. The electrochemical reactions take place at the electrode–electrolyte interface where electrode materials receive both ions (Li+, Na+, etc) and electrons during discharging, and release them during charging, enabling the reversible storage of electricity.

Towards Efficient Programmable Quantum Simulation of Correlated Bosons and Lattice Gauge Theories

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Abstract: It is well-known that interacting fermions are difficult to simulate on quantum computers because of the sign problem. It is less widely appreciated that simulations of models containing bosons can also be difficult—unless the hardware contains native bosonic degrees of freedom. The ability of superconducting quantum processors to control and make quantum non-demolition (QND) measurements of individual microwave photons is a powerful resource for quantum simulation, especially for simulation of condensed matter models and lattice gauge theories containing bosons.