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- Efficient Distributed Quantum Computing

I will explain how to simulate arbitrary quantum circuits on a distributed quantum computer (DQC), in which the pairs of qubits that are allowed to interact are restricted to the edges of some (connected) graph G. Even for graphs with only a modest number of long-range qubit interactions, such as the hypercube, this simulation is, in fact, efficient. Furthermore, for all graphs, the emulation scheme is very close to being optimal.

Secondly I will present an efficient quantum algorithm for parallel unrestricted memory look-up. As an application, I will show that the space-time trade off for Element Distinctness and Collision Finding can be improved.

Both results arise from applying the ideas of reversible sorting networks to quantum computing.

http://arxiv.org/abs/1207.2307

Collection/Series:

Event Type:

Seminar

Scientific Area(s):

Speaker(s):

Event Date:

Monday, March 11, 2013 - 16:00 to 17:30

Location:

Time Room

Room #:

294

©2012 Perimeter Institute for Theoretical Physics