Simultaneous Deterministic Control of Distant Qubits in Two Semiconductor Quantum Dots

    Authors

    A. Gamouras; R. Mathew; S. Freisem; D. G. Deppe;K. C. Hall

    Comments

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    Abbreviated Journal Title

    Nano Lett.

    Keywords

    quantum docpuls shaping; quantum control; coherent control; exciton; Rabi; MULTIPHOTON INTRAPULSE INTERFERENCE; FEMTOSECOND LASER-PULSES; SPIN; ENTANGLEMENT; COMPENSATION; DECOHERENCE; POPULATION; EXCITONS; PHOTON; Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &; Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter

    Abstract

    In optimal quantum control (OQC), a target quantum state of matter is achieved by tailoring the phase and amplitude of the control Hamiltorian through femtosecond pulse-shaping techniques and powerful I adaptive feedback algorithms. Motivated by recent applications of OQC in quantum information science as an approach to optimizing quantum gates in atomic and molecular systems, here we report the experimental implementation of OQC in a solid-state syststem consisting of distinguishable semiconductor quantum dots. We demonstrate simultaneous high-fidelity it and 22z single qubic gates in two different quantum dots using a single engineered infrared femtosecond pulse. These experiments enhance the scalability of semiconductor-based quantum hardware and lay the foundation for applications of pulse shaping to optimize quantum gates in other solid-state systems.

    Journal Title

    Nano Letters

    Volume

    13

    Issue/Number

    10

    Publication Date

    1-1-2013

    Document Type

    Article

    Language

    English

    First Page

    4666

    Last Page

    4670

    WOS Identifier

    WOS:000326356300013

    ISSN

    1530-6984

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