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Presented By: Leinweber Center for Theoretical Physics

HET Brown Bag Seminar | Quantum Many-body Bootstrap

Yuan Xin (Carnegie Mellon)

Determining the long-range phase of matter from its microscopic description has long been one of the central topics in physics. Simple microscopic systems often become strongly coupled at long range where we usually rely on clever approximations. Bootstrap is an alternative approach that uses positivity and equations of motion to make predictions in quantum many-body systems without making approximations. In this talk, I will show my recent work on using bootstrap to compute the ground state energy, local observables and gaps of a quantum many-body system in the thermodynamic limit with rigorous error bars.

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