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 --></style><title>MIT Quantum Information Processing Special Seminar
TODAY</title></head><body>
<div>The following seminar will take place TODAY (October 14) at 16:00
hours in room 3-270:</div>
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<div align="center"><font size="+2"><b>Fast Quantum Modular
Exponentiation</b></font></div>
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<div align="center"><font size="+1">by Rodney Van Meter (Keio
University)</font></div>
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<div align="center"><u>ABSTRACT</u></div>
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<blockquote>Shor's algorithm for factoring large numbers runs in
polynomial time on a quantum computer.&nbsp; The most expensive
portion of Shor's algorithm is the modular exponentiation performed
before the more well-known quantum Fourier transform.&nbsp; The exact
details of the polynomial, its degree and constant factors, determine
the running time and consequently the practicality of the algorithm on
a particular quantum computer.&nbsp; In this talk, we will show our
circuits for performing the modular exponentiation.&nbsp; We show that
the running time depends on the combination of algorithm and
architecture, as well as clock speed.</blockquote>
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<blockquote>Following the main talk will be a brief demonstration and
discussion of the quantum circuit compilation, optimization, and
visualization tools I am currently developing, for those who are
interested.</blockquote>
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