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Thursday, 30 March 2023
Video-Recording for any system with MP4-support
- Video.mp4 (ca. 427 Mb)
15:15 – 16:15
"Lise Meitner Distinguished Lecture: Quantum Computing"
(Applied Mathematics at MIT)
Shortly after quantum mechanics was first formulated around 1930, it became
evident that it was a strange theory. It took over fifty years, however, for people
to realize just how pervasive its strangeness was. We have now discovered that
information theory, the theory of computation, and the theory of cryptography
all change substantially when quantum mechanics is taken into account.
It turns out that this strangeness can be used to accomplish tasks with quantum
information processing that are not possible classically. One example of this,
and the one that really drew attention to this phenomenon, was my discovery
that quantum computers could factor large numbers into primes in manageable
time frames, something that would take digital computers billions of years.
Further, the theory of information transmission changes substantially when
information is transmitted over quantum channels rather than over classical ones.
And we have also discovered cryptographic protocols that use quantum information
to perform tasks that are impossible classically. I will survey these discoveries,
and talk about my recollections of their development.
On behalf of the Lise Meitner Distinguished Lecture Committee Egor Babaev
The Lise Meitner Distinguished Lecture is sponsored by Royal Swedish Academy
of Sciences through its Nobel Committee for Physics
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