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Multi-scale architecture for fast optical addressing and control of large scale qubit arrays

POSTER

Abstract

The use of spatial light modulators(SLM) for site-selective quantum state control has been limited due to slow transition times preventing rapid, consecutive quantum gates. We present a hybrid architecture consisting of a fast deflector and a spatial light modulator which allows rapid site-selective control of the quantum state of qubits in a large 2D lattice. We split the spatial light modulator into multiple segments and switch between them using a fast deflector. With this proposed setup, the average time increment between scanner transitions is substantially reduced, increasing the number of gates that can be performed within a single spatial light modulator full frame setting. We analyze the performance of this device in two different configurations: in configuration 1, each segment of the spatial light modulator addresses the full qubit lattice; in configuration 2, each segment of the spatial light modulator addresses a sub-array, and an additional fast deflector positions the sub-array with respect to the full qubit lattice. With these hybrid scanners, we calculate qubit addressing rates that are tens to hundreds of times faster than using a spatial light modulator alone. Furthermore, we show that these scanners can also be implemented with a simple hologram generation method without requiring iterative algorithms.

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Presenters

  • Eunji Oh

    University of Wisconsin - Madison

Authors

  • Eunji Oh

    University of Wisconsin - Madison

  • Trent Graham

    University of Wisconsin - Madison

  • Mark Saffman

    University of Wisconsin-Madison; Infleqtion, Inc.,, University of Wisconsin - Madison, University of Wisconsin - Madison, Infleqtion, Inc., Madison, Wisconsin, 53703