English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present numerical evidence for the occurrence of coherent backscattering in the Fock space of a small disordered Bose‐Hubbard system consisting of four sites and containing five particles. This many‐body interference phenomenon can most conveniently be seen in time evolution processes that start from a Fock state of the Bose‐Hubbard system. It manifests itself in an enhanced detection probability of this initial state as compared to other Fock states with comparable total energy. We argue that coherent backscattering in Fock space can be experimentally measured with ultracold bosonic atoms in optical lattices using state‐of‐the‐art single‐site detection techniques. A synthetic gauge field can be induced in order to break time‐reversal symmetry within the lattice and thereby destroy coherent backscattering. While this many‐body interference effect is most prominently visible in the presence of eigenstate thermalization, we briefly discuss its significance in the opposite regime of many‐body localization.

Coherent backscattering in the Fock space of ultracold bosonic atoms