ICTS:31117

Video URL

Revealing local spin-$s$ effects by connecting Lieb-Robinson bounds and multipartite entanglement i…

Revealing local spin-$s$ effects by connecting Lieb-Robinson bounds and multipartite entanglement in multiqudit weighted graph states

(2025). Revealing local spin-$s$ effects by connecting Lieb-Robinson bounds and multipartite entanglement in multiqudit weighted graph states. SciVideos. https://youtube.com/live/bpkSbDipNvw

Revealing local spin-$s$ effects by connecting Lieb-Robinson bounds and multipartite entanglement in multiqudit weighted graph states. SciVideos, Feb. 04, 2025, https://youtube.com/live/bpkSbDipNvw 

          @misc{ scivideos_ICTS:31117,
            doi = {},
            url = {https://youtube.com/live/bpkSbDipNvw},
            author = {},
            keywords = {},
            language = {en},
            title = {Revealing local spin-$s$ effects by connecting Lieb-Robinson bounds and multipartite entanglement in multiqudit weighted graph states},
            publisher = {},
            year = {2025},
            month = {feb},
            note = {ICTS:31117 see, \url{https://scivideos.org/index.php/icts-tifr/31117}}
          }
Keshav Agarwal
Talk numberICTS:31117
Source RepositoryICTS-TIFR
Collection

Abstract

A variable-range interacting Ising model with spin-$s$ particles exhibits distinct behavior depending on the fall-off rates in the range of interactions, notably non-local (NL), quasi-local (QL), and local, which are based on the equilibrium properties.  It is unknown if such a transition is respected in the dynamical framework. We use an analytically solvable model in arbitrary spatial dimension ($D$), to establish a dynamical non-local (dNL) behavior, which does not agree with the known result of equilibrium NL behavior. We analyze the profiles of topological entanglement entropy (TEE), mutual information, Lieb-Robinson bound (LRB) and genuine multipartite entanglement (GME) of the weighted graph state (WGS), prepared when the multi-level maximally coherent state at each site evolves according to the long-range spin-$s$ Ising Hamiltonian. Specifically, we demonstrate that the connection between the LRB profile and the divergence in the first derivative of GME with respect to the fall-off rate in the WGS can indicate the transition point from dNL to a dynamical local/quasi-local (dQL) regimes.