Dear quanta,
See below for a talk this afternoon. Sorry for the late notice.
Aram
---------- Forwarded message ----------
From: "Pablo A Parrilo" <parrilo(a)mit.edu>
Date: Apr 14, 2014 11:47 AM
Subject: [Lids-seminars] TALK: Wednesday Apr 16th, 3PM, Stephanie Wehner
To: "lids-seminars(a)mit.edu" <lids-seminars(a)mit.edu>
Cc:
Speaker: Stephanie Wehner (National University of Singapore)
Date/time: Wednesday 4/16/2014, 3 PM
Location: 32D-677 (Stata Center, LIDS seminar room)
Title: Entanglement improves classical control
Abstract:
Electronic devices all around us contain classical control circuits. Such
circuits consist of a network of controllers which can read and write
signals to wires of the circuit with the goal to minimize the cost function
of the circuit's output signal. Here, we propose the use of shared
entanglement between controllers as a resource to improve the performance
of otherwise purely classical control circuits. We study a well-known
example by Witsenhausen from the classical control literature and
demonstrate that allowing two controllers to share entanglement improves
their ability to control. More precisely, we exhibit a family of circuits
in which the the cost function using entanglement stays constant, but the
minimal cost function without entanglement grows arbitrarily large. This
demonstrates that entanglement can be a powerful resource in a classical
control circuit. Joint work with Duy Nguyen Truong and Matthew McKague.
Preprint available at
http://arxiv.org/abs/1307.1569
Speaker bio:
Stephanie Wehner is an Associate Professor in the School of Computing at
the National University Singapore and the Centre for Quantum Technologies.
Prior to coming to Singapore in 2010, she spent two years as a Postdoctoral
Fellow at the California Insitute of Technology, and three and half as a
PhD student at the University of Amsterdam. Stephanie is one of the
founders of QCRYPT, presently the largest conference in quantum
cryptography, and was elected to the Steering Committee of QIP in 2013.
Before entering academia, she worked in industry as a professional hacker.
Her research interests include quantum cryptography, quantum information
theory, and the application of information-theoretic techniques to physics.
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