THIS GRANT IS A CONTINUATION OF N000141410805 - Quasiperiodicity, Interactions, and Topology in Tunable Quantum Materials
Abstract
Approach:We propose to realize the first fully tunable quasiperiodic quantum material and use it as a model system to measure the effect of interactions and incommensurability on excitations, topologically protected edge states, and transport. The technological basis for the proposed experiments is a tunable quantum degenerate lithium gas in a tunable quasiperiodic optical trap. We will use this apparatus to characterize and control quantum Hall energy spectra, measure the effect of interactions and dynamics on topological states of matter, and determine the effect of quasiperiodicity on the properties of a quantum material.Objective:Experiments on this model system will provide insight into the effect of strong interactions on topological phases, quantum Hall states, and electron-phason coupling in quasicrystals. These experiments will have navally-relevant implications for the control of transport in low-dimensional electronic systems and the design of next-generation quasiperiodic materials.Naval Relevance:Next-generation electronics for communication and sensing are likely to rely in part on breakthroughs in our control and understanding of topological states of matter. The proposed work offers direct experimental access to the deep relation between topologically nontrivial and quasiperiodic materials. Although this is truly basic research, exploration of this intersection could enable breakthroughs of naval relevance in the design of novel materials and the control of many-body quantum states. Long-term applications enabled by this work could include predictive guidelines for the development of novel quasiperiodic thermoelectrics [1], new architectures for topologically protected interconnects [2], advances in topological quantum information processing and quantum communication [3, 4], and the design and control of strongly correlated systems [5, 6].
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 26, 2018
- Source ID
- N000141612225
Entities
People
- David M. Weld
Organizations
- Office of Naval Research
- United States Navy
- University of California, Santa Barbara