English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

Quantumness beyond entanglement: The case of symmetric states

MPS-Authors
/persons/resource/persons201075

Grassl,  Markus
Quantumness, Tomography, Entanglement, and Codes, Leuchs Emeritus Group, Emeritus Groups, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201115

Leuchs,  Gerd
Leuchs Emeritus Group, Emeritus Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Friedrich-Alexander-Universität Erlangen-Nürnberg, External Organizations;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

PhysRevA.105.022433.pdf
(Publisher version), 2MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Goldberg, A. Z., Grassl, M., Leuchs, G., & Sanchez-Soto, L. L. (2022). Quantumness beyond entanglement: The case of symmetric states. PHYSICAL REVIEW A, 105(2): 022433. doi:10.1103/PhysRevA.105.022433.


Cite as: https://hdl.handle.net/21.11116/0000-000F-8CCB-F
Abstract
Nowadays, it is accepted that truly quantum correlations can exist even in the absence of entanglement. For the case of symmetric states, a physically trivial unitary transformation can alter a state from entangled to separable, and vice versa. We propose to certify the presence of quantumness via an average of a state's bipartite entanglement properties over all physically relevant modal decompositions. We investigate extremal states for such a measure: SU(2)-coherent states possess the least quantumness, whereas the opposite extreme is inhabited by states with maximally spread Majorana constellations.