another relevant talk
---------- Forwarded message ---------
From: Christina Andujar <candujar(a)mit.edu>
Date: Tue, Apr 16, 2019 at 10:17 PM
Subject: FW: April 24, 8pm - 2019 David M. Lee Historical Lecture in
Physics - Anton Zeilinger, "Quantum Information and Quantum Communication,
Foundations and Prospects"
To:
Begin forwarded message:
*From: *"Davis, Jolanta M." <jmdavis(a)fas.harvard.edu>
*Subject: April 24, 8pm - 2019 David M. Lee Historical Lecture in Physics -
Anton Zeilinger, "Quantum Information and Quantum Communication,
Foundations and Prospects"*
*Date: *April 16, 2019 at 3:54:19 PM EDT
*To: *"Davis, Jolanta M." <jmdavis(a)fas.harvard.edu>
*Please forward to your department faculty, students, and research scholars
this information about the 2019 David M. Lee Historical Lecture in Physics.*
In addition to the Lee Lecture mentioned below, on Thursday, April 25,
Professor Zeilinger will also present and speak about a film he had
commissioned, "Exile and Excellence: The Class of '38", which features 16
eminent Austrian-born US American and British scholars, who share their
life stories after they managed to escape Nazi persecution as children in
Austria. One of the scholars featured in the movie is Prof. Gerald Holton
from the Physics Department at Harvard University.
This event (on April 25) will be held at Harvard's Center for European
Studies (CES), at 4:30-6:00. For more information, please see:
https://ces.fas.harvard.edu/events/2019/04/austrian-academy-of-sciences---c…
David M. Lee Historical Lectures in Physics, sponsored by the Marvin and
Annette Lee Fund, are free and open to the public.
*April 24, 2019*
*8:00 pm*
*Jefferson Laboratories 250*
Physics Department
17 Oxford Street
Cambridge, MA
A dessert reception following the lecture will be held in Jefferson 450 –
Physics Department Library.
*Anton Zeilinger*
Vienna Center for Quantum Science and Technology, University of Vienna
Institute for Quantum Optics and Quantum Information, Austrian Academy of
Sciences
[image: cid:image001.jpg@01D4E55D.AEA16900]
*“Quantum Information and Quantum Communication, Foundations and Prospects”*
It is curious that the development of quantum physics – arguably the most
successful description of nature ever – was accompanied by fundamental
debates from the early days until today. Schrödinger’s cat, Einstein’s
“spooky action at a distance” and his comment that “God does not play dice
with the Universe” are deeply rooted in fundamental features of the theory:
superposition, entanglement and randomness. The concept of Quantum
Information encompasses these fundamental features. In the talk, I will
discuss some fundamental experiments. For example, in delayed-choice
entanglement swapping, the decision whether two photons which share no
common past are entangled or not can be made at the time when they already
have been detected. An interesting and very visual workhorse are orbital
angular momentum states of photons. They opened up the possibility for
higher-dimensional quantum experiments. That way, entanglement has been
confirmed for quantum numbers above 10.000 and between two more than
100-dimensional quantum states. In the talk, I will also mention recent
experiments in higher dimensions where the setup has been designed by the
computer program Melvin. Finally, a recent Cosmic Bell Test experiment will
be discussed, where the randomness is taken from fluctuations of light from
distant quasars. The talk will conclude with a most technical application,
the implementation of intercontinental quantum cryptography between Beijing
and Vienna via the Chinese quantum satellite Micius, and with The Big Bell
Test involving 100.000 participants providing independent input for 13
experiments on 5 continents.
_________
Jolanta M. Davis | Administrator to the Chair | Harvard University
| Department of Physics | 17 Oxford St., Jefferson 370 | Cambridge, MA
02138 | Tel.: 617-495-2866 | Fax: 617-495-0416 |
https://www.physics.harvard.edu/
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