UIUC Dept. of Mathematics Seminar Calendar

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Wednesday, February 19, 2003

RAP: Random Planar Curves
11:00 am in 343 Altgeld Hall, Wednesday, February 19, 2003

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Submitted by rbauer.

Robert Bauer (UIUC Math)
To be announced

Quantum Information Science Seminar
12:00 pm in 280 MRL, Wednesday, February 19, 2003

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Submitted by seminar.

Dr. Jeffrey McGuirk (NIST/JILA - University of Colorado)
Coherence and Correlations in an Ultra-cold Bose Gas
Abstract: Ultra-cold, magnetically-trapped Bose gases have great promise in a wide variety of applications ranging from fundamental studies of Bose-Einstein condensation, to quantum information, to precision measurements and fundamental tests of physics on short distance scales. Many of these applications rely on the coherence properties of Bose-Einstein condensates.

I will present results of studies of coherence and correlations both above and below the degeneracy point. These results include striking macroscopic collective behavior above the degeneracy threshold (spin waves) and a surprising decrease of coherence below the onset of degeneracy (quasi-condensate modes).

Information Protection Seminar
4:00 pm in 141 CSL, Wednesday, February 19, 2003

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Submitted by andreas.

Eric Landquist, (UIUC Math)
So you want to Design a Factoring Algorithm?
Abstract: It could mean fame, money, and perhaps even an article on Slashdot. That's right, a newer, faster factoring algorithm to crack RSA keys, contribute to the Cunningham Project, and impress your friends. This talk will first explore current factoring algorithms to see why they run at the speeds they do. Based off this information, we will look at ways to possibly speed up these algorithms or create new algorithms to run faster. Several ideas will be presented, with the goal of the talk being to promote dialogue and research into creating better factoring algorithms. No football predictions will be made, but the Curse of the Bambino may be involved.

Undergraduate Colloquium
4:30 pm in 245 Altgeld Hall, Wednesday, February 19, 2003

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Submitted by ahlgren.

Edward B. Burger [email] (Williams College)
"How to Always Win at Limbo" or You can sum some of the series some of the time, and some of the series none of the time... but can you sum some of the series ALL of the time?
Abstract: Have you ever gone out with someone for a while and asked yourself: "How close are we?" This presentation will answer that question by answering: What does it mean for two things to be close to one another? We'll take a strange look infinite series, dare to mention a calculus student's fantasy, and momentarily consider trancendental meditation. In fact, we'll even attempt to build some very exotic series that can be used if you ever have to flee the country in a hurry: we'll either succeed or fail... you'll have to come to the talk to find out. Will you be at the edge of your seats? Perhaps; but if not, then you'll probably fall asleep and either way, after the talk, you'll feel refreshed. No matter what, you'll learn a sneaky way to always win at Limbo. All math fans who have heard of the words "absolute value" and "infinite series" are invited to attend. Graduate students and faculty welcome.