#
Condensed Matter Physics Seminar

2 p.m., Thursday, March 8, 2001

Room 4220, Physics Building
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* Spin Quantum Computation*

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Xuedong Hu

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(Department of Physics, University of Maryland)

**Abstract:** In the past decade there has been a rapidly increasing
interest in quantum computation from physicists, mathematicians, and computer
scientists. It has been pointed out that the intrinsic parallelism
of quantum mechanics, in the form of coherent superposition and entanglement,
can give quantum computers massive advantages over classical computers
for certain tasks such as prime factorization and database search.
In this talk I will first briefly review the basic characters of quantum
computing and information processing. I will then focus on our theoretical
study of various important issues in constructing spin-based quantum dot
quantum computers, such as the validity of the exchange Hamiltonian, the
possibility of using a multiple-electron quantum dot as a qubit, and certain
errors in this model.

**Host: **Sankar Das Sarma

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