AQP Seminar: A scalable-NISQ computing toolkit for implementing quantum error correction

Aalto Quantum Physics Seminar (Nanotalo). Speaker: Kaushal Vidyut (Johannes Gutenberg University of Mainz)

The moving trapped atomic ions in microfabricated segmented ion traps hold the promise of realizing scalable architecture for quantum information processing (QIP). However, before scaling the size, demonstration of criteria needed for implementing quantum error correction (QEC) has to be achieved on medium scale quantum processors. Therefore, in this talk, I will discuss a noisy intermediate-scale quantum (NISQ) toolkit (~10-15 qubits) based on shuttling of trapped-ion(s), which can be used to realize the QEC with topological color codes[1]. Besides laser driven gates, the hardware components of this toolkit are newly developed advanced experimental control with ⁴⁰Ca⁺ as a qubit(s) in 3-D multiplexed segmented ion-trap. In particular, the recent advances in shuttling based scalable trapped-ion system toward the implementation of theoretical benchmark for this QEC[2] will be presented.

The discussion will include full 3-D characterization of static/accelerated qubit, latest results on all type of shuttling operation (transport, separation, and rotation) of ion(s) crystal and the experimental system for scalable control of ionic-qubit in such ion-traps. The advanced experimental control system embeds the technology of scalable generation of several (~10³) voltage-waveform and laser-control (upto ~10² lasers)[3].

References

[1] D. Nigg et al. “Quantum computations on a topologically encoded qubit”. In: Science
345.6194 (2014), pp. 302-305. ISSN: 0036-8075.
[2] A. Bermudez et al. “Assessing the Progress of Trapped-Ion Processors Towards Fault-Tolerant Quantum Computation”. In: Phys. Rev. X 7 (4 Dec. 2017), p. 041061.
[3] V. Kaushal et al. “Shuttling-Based Trapped-Ion Quantum Information Processing”.
In: Manuscript submitted for publication (2019).