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Quantum computing and single-qubit measurements using the spin filter effect
David P. DiVincenzo
Many things will have to go right for quantum computation to become a reality in the lab. For any of the presently-proposed approaches involving spin states in solids, an essential…
The problem of equilibration and the computation of correlation functions on a quantum computer
Barbara M. Terhal, David P. DiVincenzo
We address the question of how a quantum computer can be used to simulate experiments on quantum systems in thermal equilibrium. We present two approaches for the preparation of th…
Unextendible Product Bases and Bound Entanglement
C. H. Bennett, D. P. DiVincenzo, T. Mor +3
An unextendible product basis (UPB) for a multipartite quantum system is an incomplete orthogonal product basis whose complementary subspace contains no product state. We give exam…
Coupled quantum dots as quantum gates
Guido Burkard, Daniel Loss, David P. DiVincenzo
We consider a new quantum gate mechanism based on electron spins in coupled semiconductor quantum dots. Such gates provide a general source of spin entanglement and can be used for…
Quantum Nonlocality without Entanglement
Charles H. Bennett, David P. DiVincenzo, Christopher A. Fuchs +5
We exhibit an orthogonal set of product states of two three-state particles that nevertheless cannot be reliably distinguished by a pair of separated observers ignorant of which of…
Entanglement of Assistance
David P. DiVincenzo, Christopher A. Fuchs, Hideo Mabuchi +3
The newfound importance of ``entanglement as a resource'' in quantum computation and quantum communication compels us to quantify it in as many distinct ways as possible. Here we e…