Compare Papers
Paper 1
Multi-party quantum Byzantine consensus based on full quantum one-way function
Tao Shang, Yao Tang, Yuanjing Zhang, Kun Zhang, Yazhuo Jiang
- Year
- 2024
- Journal
- Quantum Information Processing
- DOI
- 10.1007/s11128-024-04621-5
- arXiv
- -
No abstract.
Open paperPaper 2
Entanglement at the interplay between single- and many-bodyness
Jose Reslen
- Year
- 2022
- Journal
- arXiv preprint
- DOI
- arXiv:2209.04287
- arXiv
- 2209.04287
The tensor network representation of the ground state of a Bethe chain is analytically obtained and studied in relation to its entanglement distribution. Block entanglement displays a maximum at the interplay between single- and many-bodyness. In systems of two fermions, tensor networks describing ground states of interacting Hamiltonians cannot be written as a sequence of next-neighbor unitaries applied on an uncorrelated state, but need four-next-neighbor unitaries in addition. This differs from the idea that the ground state can be obtained as a sequence of next-neighbor operations applied on a tensor network. The work uncovers the transcendence of the notion of many-bodyness in the implementation of protocols based on matrix product states.
Open paper