Bloodstone

Bloodstone is our flagship long-chain Yb+ processor (32+ ions), designed for programmable single-qubit control with mid-circuit measurement and reset. It is engineered for robust, modular operation and integrates with a full-stack control system developed in collaboration with Open Quantum Design.

At the core of the Bloodstone processor is a segmented blade electrode ion trap apparatus housed in a room temperature apparatus with pressure at the boundary of Extreme High Vacuum (<1.5 x 10^-12 mbar measured by an ion gauge). The Bloodstone processor is engineered following systems design principles, to be modular and robust againt drifts. The optical architecture includes individual qubit addressing from two sides, using a mirrored Acousto-Optic Deflector set up, and an in situ Mid-circuit measurement and reset based on holographic optical engineering.

Related publications

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Steady States of a Single Trapped-Ion Spin Coupled to an Engineered Non-Markovian Bath

Anthony Vogliano , Lewis Hahn , Fabien Lefebvre , Jingwen Zhu , Sakshee Patil , Mahmood Sabooni , Zhexuan Gong, Rajibul Islam

arXiv:2607.19286

Quantum systems in nature are typically coupled to environments which allow them to dissipate information, resulting in steady-states where the average behavior of a system is stable at long times. Here we explore some non-trivial features that arise in steady-states when the system-environment coupling takes on some structure, in particular non-Markovianity of the dissipation channel. Even with a single qubit, we can see steady-state behavior in a non-Markovian setup which is disallowed in an analogous Markovian setup.

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A Room-Temperature Extreme High Vacuum System for Trapped-Ion Quantum Information Processing

Lewis Hahn , Nikhil Kotibhaskar , Fabien Lefebvre , Sakshee Patil , Sainath Motlakunta , Mahmood Sabooni , Rajibul Islam

arXiv:2512.11794

Increasing ion lifetime by lowering background pressure is key for scaling quantum processors. Here, we demonstrate near–extreme-high-vacuum pressures in a room-temperature apparatus forming the core of the Bloodstone quantum processor, avoiding cryogenic complexity while enabling greater optical access for individual qubit control.

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