Towards fast and scalable trapped-ion quantum logic with integrated photonics

Karan K. Mehta; Chi Zhang; Stefanie Miller; Jonathan P. Home

doi:10.1117/12.2507647

4 March 2019 Towards fast and scalable trapped-ion quantum logic with integrated photonics

Karan K. Mehta, Chi Zhang, Stefanie Miller, Jonathan P. Home

Proceedings Volume 10933, Advances in Photonics of Quantum Computing, Memory, and Communication XII; 109330B (2019) https://doi.org/10.1117/12.2507647
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

Trapped-ion qubits promise certain fundamental advantages for quantum information processing (QIP), owing to their indistinguishability and relatively high isolation from noisy environments. Though these qualities have allowed demonstrations of the necessary primitives for quantum computation, the complexity of the optical apparatus required is a major impediment to implementation at scales where quantum systems offer a clear advantage over classical computers. Here, we build on previous work with trap-integrated waveguide optics, describing designs and simulations for commercial foundry-fabricated ion trap chips with integrated Si3N4 waveguides and grating couplers to implement multi-qubit operations. We detail a design intended to address and implement quantum logic gates between 5 ions in a single register, and a configuration which utilizes the stable on-chip path lengths of waveguide devices to enact a novel fast entangling two-qubit gate. The devices and approaches presented here could form elements of a scalable architecture for trapped-ion QIP.

Conference Presentation

Citation Download Citation

Karan K. Mehta, Chi Zhang, Stefanie Miller, and Jonathan P. Home "Towards fast and scalable trapped-ion quantum logic with integrated photonics", Proc. SPIE 10933, Advances in Photonics of Quantum Computing, Memory, and Communication XII, 109330B (4 March 2019); https://doi.org/10.1117/12.2507647

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