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MiS Preprint
78/2013

Time Optimal Quantum Control of Two-qubit Systems

Bin Li, Zuhuan Yu, Shao-Ming Fei and Xianqing Li-Jost

Abstract

We study the optimal quantum control of heteronuclear two-qubit systems described by a Hamiltonian containing both nonlocal internal drift and local control terms. We derive an explicit formula to compute the minimum time required to steer the system from an initial state to a specified final state. As applications the minimal time to implement Controlled-NOT gate, SWAP gate and Controlled-U gate is calculated in detail. The experimental realizations of these quantum gates are explicitly presented.

Received:
Aug 14, 2013
Published:
Aug 19, 2013
PACS:
03.67.-a, 32.80.Qk

Related publications

inJournal
2013 Repository Open Access
Bin Li, Zu-Huan Yu, Shao-Ming Fei and Xianqing Li-Jost

Time optimal quantum control of two-qubit systems

In: Science in China : physics, mechanics and astronomy, 56 (2013) 11, pp. 2116-2121