State preparation algorithms for lattice Schwinger Model

05.09.2024, 09:30
30m
B052 (ASC)

B052

ASC

Theresienstr. 37

Sprecher

Prof. Marina Marinkovic (ETH Zürich)

Beschreibung

Classical methods for simulating lattice gauge theories generally encounter a sign problem when studying theories at finite chemical potential, theories with a topological θ-term, or their real-time dynamics. Quantum simulations of gauge theories offer a way to overcome some of these challenges by mapping the classically inaccessible real-time dynamics onto quantum devices. In this talk, I will discuss strategies for digital quantum simulations of the lattice Schwinger Model, with a focus on novel approaches to adiabatic state preparation. I will review existing adiabatic Hamiltonians and introduce new ones that mix states across different charge sectors, comparing their efficacy in exploring systems with a nonzero topological θ-term and in studying string breaking phenomena.

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