[quantum-info] ususual day and time---PIQuDos seminar Fri Sept 19 at 15:00: Markus Grassl

[Gus Gutoski]

Reminder: PIQuDos seminar by Markus Grassl at 3pm on Fri Sept 19 in
the Time room.  -Gus

On Sun, Sep 14, 2014 at 5:29 PM, Gus Gutoski
<ggutoski at perimeterinstitute.ca> wrote:
> In addition to Wednesday's seminar, please join us on Friday,
> September 19 at 3pm in the Time room for a quantum information seminar
> by Markus Grassl.
>
> Title:  Algebraic characterization of entanglement classes
> Speaker: Markus Grassl
>
> Abstract: Entanglement is a key feature of composite quantum system
> which is directly related to the potential power of quantum computers.
>
> In most computational models, it is assumed that local operations are
> relatively easy to implement.  Therefore, quantum states that are
> related by local operations form a single entanglement class.
>
> In the case of local unitary operations, a finite set of polynomial
> invariants provides a complete characterization of the entanglement
> classes.  Unfortunately, one faces the problem of combinatorial
> explosion so that computing such a complete set of invariants becomes
> difficult already for quite small system.
>
> The two main problems in this context are to compute invariants and to
> decide completeness, i.e., whether a given set of invariants generates
> the full invariant ring.  Important tools are both univariate and
> multivariate Hilbert series which are already difficult to compute.
> We will also address computational aspects of these problems and
> techniques for showing completeness of a set of invariants.
>
> Date: Friday, September 19, 2014.
> Time: 15:00
> Location: Time Room
>
> -Gus