title: Quantum computation under micromotion in a planar ion crystal.
abstract: We propose a scheme to realize scalable quantum computation in a planar ion crystal confined by a Paul trap. We show that the inevitable in-plane micromotion affects the gate design via three separate effects: renormalization of the equilibrium positions, coupling to the transverse motional modes, and amplitude modulation in the addressing beam. We demonstrate that all of these effects can be taken into account and high-fidelity gates are possible in the presence of micromotion. This proposal opens the prospect to realize large-scale fault-tolerant quantum computation within a single Paul trap.
authors.affiliation: 1] Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA [2] Center for Quantum Information, IIIS, Tsinghua University, Beijing 100084, PR China.
authors.forename: S-T
authors.initials: ST
authors.lastname: Wang
authors.affiliation: 1] Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA [2] Department of Applied Physics, Yale University, New Haven, Connecticut 06511, USA.
authors.forename: C
authors.initials: C
authors.lastname: Shen
authors.affiliation: 1] Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA [2] Center for Quantum Information, IIIS, Tsinghua University, Beijing 100084, PR China.
authors.forename: L-M
authors.initials: LM
authors.lastname: Duan