Theoretical Statistics and Mathematics Unit, ISI Delhi

April 27, 2016 (Wednesday) ,
3:30 PM at Webinar

Speaker:
Ritabrata Sengupta,
Indian Statistical Institute, Delhi

Title:
Extendability and complete extendability of Gaussian states

Abstract of Talk

Motivated by the notions of k-extendability and complete extendability of the state of a finite level quantum system as described by Doherty et al (Phys. Rev. A, 69:022308), we introduce parallel definitions in the context of Gaussian states and derive necessary and sufficient conditions for their extendability. It is shown that every Gaussian state is completely extendable if and only if it is Gaussian separable.

This is a joint work with K. R. Parthasarathy, based on arXiv:1601.02365 and a few results from J. Math. Phys., 56(10):102203--11 (2015).