Events

Filters
Export this event to calendar
iCal
RSS
RSS
Close X

Filter by:

Limit to events where the first date of the event:
Date range
Limit to events where the first date of the event:
Limit to events where the title matches:
Limit to events where the type is one or more of:
Limit to events tagged with one or more of:
Limit to events where the audience is one or more of:
Monday, October 31, 2011 12:30 pm - 1:30 pm EDT (GMT -04:00)

Fernando Brandao: Random quantum circuits are approximate polynomial-designs

Abstract

An approximate unitary t-design is a distribution of unitaries that mimic properties of the Haar measure for polynomials (in the entries of the unitaries) of degree up to t. It has been a conjecture in the theory of quantum pseudo-randomness that polynomial sized random quantum circuits form an approximate unitary poly(n)-design. Unfortunately, up to now, the best result known is that polynomial random quantum circuits are unitary 3-designs.

Thursday, November 3, 2011 12:30 pm - 1:00 pm EDT (GMT -04:00)

Fred Shultz: Entanglement preservation

Fred Shultz, Wellesley College

Abstract

We will determine the possible maps that can describe time evolution preserving entanglement.

This will be approached by examining the convex set of separable states, and describing all symmetries of this set.

Joint work with Erik Alfsen of the University of Oslo.