Dresden 2017 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 15: Quantum Dynamics, Decoherence, Quantum Information
DY 15.11: Vortrag
Dienstag, 21. März 2017, 12:15–12:30, ZEU 160
Quantum simulation with acoustic lattices — •Johannes Knörzer1, Martin Schuetz1,2, Eric Kessler2, Geza Giedke1,3, Lieven Vandersypen4, Mikhail Lukin2 und Juan Ignacio Cirac1 — 1Max-Planck-Institut für Quantenoptik, Garching, Deutschland — 2Harvard University, Cambridge, USA — 3DIPC, San Sebastian, Spanien — 4TU Delft, Delft, Niederlande
We propose and analyze a solid-state platform for quantum simulation based on high-frequency surface acoustic waves (SAWs). We develop a general theoretical framework demonstrating the emergence of an effective time-independent acoustic lattice for charge carriers in two-dimensional quantum wells and one-dimensional wires; with lattice parameters that are reconfigurable in real time. We discuss potential experimental platforms for a faithful implementation of such an acoustic lattice, and provide estimates for typical system parameters. With a projected lattice spacing on the scale of 100nm, this approach allows for relatively large energy scales in the realization of the fermionic Hubbard model, with the ultimate goal to enter regimes where the antiferromagnetic spin-spin interaction strength exceeds cryostatic temperatures. Implementation and read-out schemes are discussed.