Condensed Matter Physics Seminar

2 p.m., Thursday, March 8, 2001
Room 4220, Physics Building

 Spin Quantum Computation

Xuedong Hu

(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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