Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published July 2008 | Published + Submitted
Journal Article Open

Geometrically induced singular behavior of entanglement

Abstract

We show that the geometry of the set of quantum states plays a crucial role in the behavior of entanglement in different physical systems. More specifically, it is shown that singular points at the border of the set of unentangled states originate singularities in the dynamics of entanglement of smoothly varying quantum states. We illustrate this result by implementing a photonic parametric down-conversion experiment. Moreover, this effect is connected to recently discovered singularities in condensed matter models.

Additional Information

© 2008 American Physical Society. Received 31 August 2007; published 10 July 2008. We acknowledge discussions with A. Acín, A. Sen(De), J. Wehr, E. Rico, G. Palacios, V. Vedral, and J. Dunningham and funding from CNPq, Fapemig, PRPq-UFMG, and the Brazilian Millenium Institute for Quantum Information.

Attached Files

Published - PhysRevA.78.012318.pdf

Submitted - 0709.0301v2.pdf

Files

PhysRevA.78.012318.pdf
Files (528.0 kB)
Name Size Download all
md5:1069db873995af201c7a4615b42c6a6e
266.8 kB Preview Download
md5:a5f1da263a002905063b914bc633d7c3
261.2 kB Preview Download

Additional details

Created:
August 19, 2023
Modified:
October 18, 2023