Acoustic traps and lattices for electrons in semiconductors
M. J.A. Schuetz (Harvard University, Max-Planck-Institut für Quantenoptik)
J. Knörzer (Max-Planck-Institut für Quantenoptik)
G Giedke (Donostia International Physics Center, Basque Foundation for Science)
L. M.K. Vandersypen (Kavli institute of nanoscience Delft, TU Delft - QCD/Vandersypen Lab)
M. D. Lukin (Harvard University)
J. I. Cirac (Max-Planck-Institut für Quantenoptik)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
We propose and analyze a solid-state platform based on surface acoustic waves for trapping, cooling, and controlling (charged) particles, as well as the simulation of quantum many-body systems. We develop a general theoretical framework demonstrating the emergence of effective time-independent acoustic trapping potentials for particles in two- or one-dimensional structures. As our main example, we discuss in detail the generation and applications of a stationary, but movable, acoustic pseudolattice with lattice parameters that are reconfigurable in situ. We identify the relevant figures of merit, 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 ∼100 nm, this approach allows for relatively large energy scales in the realization of fermionic Hubbard models, with the ultimate prospect of entering the low-temperature, strong interaction regime. Experimental imperfections as well as readout schemes are discussed.
help_outline