Regensburg 2019 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 29: Many-body Quantum Dynamics
DY 29.8: Vortrag
Mittwoch, 3. April 2019, 11:45–12:00, H19
Spin-models, dynamics and criticality with atoms in tilted optical superlattices — Anton Buyskikh1, Luca Tagliacozzo1, •Dirk Schuricht2, Chris Hooley3, David Pekker4, and Andrew Daley1 — 1University of Strathclyde, Glasgow, UK — 2Utrecht University, NL — 3University of St Andrews, UK — 4University of Pittsburgh, USA
We show that atoms in tilted optical superlattices provide a platform for exploring coupled spin chains of forms that are not present in other systems. In particular, using a period-2 superlattice in 1D, we show that coupled Ising spin chains with XZ and ZZ spin coupling terms can be engineered. We use optimized tensor network techniques to explore the criticality and non-equilibrium dynamics in these models, finding a tricritical Ising point in regimes that are accessible in current experiments. These setups are ideal for studying low-entropy physics, as initial entropy is *frozen-out* in realising the spin models.