An energy-resolved atomic scanning probe
| Autor: | Massimiliano Di Ventra, Michael Zwolak, Daniel Gruss, Chih-Chun Chien, Julio T. Barreiro |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Fluids & Plasmas
FOS: Physical sciences General Physics and Astronomy 01 natural sciences Article 010305 fluids & plasmas Many-body problem Affordable and Clean Energy quant-ph Ultracold atom Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences cond-mat.mes-hall Spatial dependence 010306 general physics Electronic band structure Topology (chemistry) Quantum tunnelling quantum transport Physics Condensed Matter::Quantum Gases Quantum Physics Local density of states Condensed Matter - Mesoscale and Nanoscale Physics local density of states cold atoms Quantum Gases (cond-mat.quant-gas) Physical Sciences Density of states Atomic physics scanning probe Condensed Matter - Quantum Gases Quantum Physics (quant-ph) cond-mat.quant-gas |
| Zdroj: | Gruss, D; Chien, C-C; Barreiro, J; Ventra, MD; & Zwolak, M. (2017). An energy-resolved atomic scanning probe. UC San Diego: Retrieved from: http://www.escholarship.org/uc/item/2h11q4th New journal of physics, vol 20, iss 11 |
| Popis: | We propose a method to probe the local density of states (LDOS) of atomic systems that provides both spatial and energy resolution. The method combines atomic and tunneling techniques to supply a simple, yet quantitative and operational, definition of the LDOS for both interacting and non-interacting systems: It is the rate at which particles can be siphoned from the system of interest by a narrow energy band of non-interacting states contacted locally to the many-body system of interest. Ultracold atoms in optical lattices are a natural platform for implementing this broad concept to visualize the energy and spatial dependence of the atom density in interacting, inhomogeneous lattices. This includes models of strongly correlated condensed matter systems, as well as ones with non-trivial topologies. Comment: 9 pages, 7 figures; Appeared in the Focus on Quantum Transport in Ultracold Atoms in the New Journal of Physics |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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