Coherent modification of entanglement: benefits due to extended Hilbert space
Keyword(s):
Speed Up
◽
A quantum computing system is typically represented by a set of non-interacting (local) two-state systems—qubits. Many physical systems can naturally have more accessible states, both local and non-local. We show that the resulting non-local network of states connecting qubits can be efficiently addressed via continuous time quantum random walks, leading to substantial speed-up of multiqubit entanglement manipulations. We discuss a three-qubit Toffoli gate and a system of superconducting qubits as an illustration.
2005 ◽
Vol 05
(01)
◽
pp. L73-L83
◽
Keyword(s):
2007 ◽
Vol 40
(45)
◽
pp. 13773-13785
◽
Keyword(s):
2013 ◽
Vol 10
(7)
◽
pp. 1653-1661
◽
Keyword(s):
Keyword(s):
Keyword(s):