Published January 3, 2024 | Version v1
Journal article

Entanglement detection in arbitrary-dimensional bipartite quantum systems through partial realigned moments

  • 1. Delhi Technological University, Shahbad Daulatpur, Main Bawana Road, Delhi 110042, India
  • 2. S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700098, India

Description

Detection of entanglement through partial knowledge of the quantum state is a challenge to implement efficiently. Here we propose a separability criterion for detecting bipartite entanglement in arbitrary-dimensional quantum states using partial moments of the realigned density matrix. Our approach enables the detection of both distillable and bound entangled states through a common framework. We illustrate the significance of our method through examples of states belonging to both the above categories, which are not detectable using comparable other schemes relying on partial state information. The formalism of employing partial realigned moments proposed here is further shown to be effective for two-qubit systems too, with a slight modification of our separability criterion.

Additional details

Identifiers

DOI
10.1103/PhysRevA.109.012404;
arXiv
arXiv:2302.04797;
Crossref Funder ID
10.13039/501100001412; 10.13039/501100001409;

Publishing Information

Journal Title
Physical Review A
Journal Volume
109
Journal Issue
1
Journal Page Range
14 pgs.
ISSN
1094-1622

Optional Information

Copyright
©2024 American Physical Society
Contract/Grant/Project number
08/133(0043)/2019-EMR-1; DST/ICPS/QuEST/2018/98
Notes
Contact Email: shruti_phd2k19@dtu.ac.in; Contact Email: satyabrata@dtu.ac.in; Contact Email: archan@bose.res.in; Record automatically processed
Funding organization
Council of Scientific and Industrial Research, India; Department of Science and Technology, Ministry of Science and Technology, India