Characterizing the width of entanglement
arXiv:1507.07226 · doi:10.1088/1367-2630/aa5015
Abstract
We introduce the concept of entanglement width as measure of the spatial distribution of entanglement in multiparticle systems. We develop criteria to detect the width of entanglement using global observables such as energy and magnetic susceptibility. Therefore, the introduced entanglement criteria can be applied to systems where addressing of single particles is not possible. We apply the criteria to different examples such as the J1-J2- Heisenberg model and point out the difference between entanglement depth and entanglement width.
10 pages, 5 figures, major revision including new examples and criteria for entanglement width
References in corpus (12)
- Quantum computing with trapped ions
- Quantum metrology from a quantum information science perspective
- Non-local propagation of correlations in long-range interacting quantum systems
- Detecting multiparticle entanglement of Dicke states
- Multipartite entanglement in spin chains
- Spin squeezing and entanglement
- Quantum Non-Demolition Detection of Strongly Correlated Systems
- The maximally entangled symmetric state in terms of the geometric measure
- Generation of macroscopic singlet states in a cold atomic ensemble
- QUBIT4MATLAB V3.0: A program package for quantum information science and quantum optics for MATLAB
- Fast transport, atom sample splitting, and single-atom qubit supply in two-dimensional arrays of optical microtraps
- Probing magnetic order in ultracold lattice gases