Quantinuum LLC

Brian Neyenhuis

John Gaebler

Russell Stutz

Ciaran Ryan-Anderson

Alex Chernoguzov

A quantum computing system comprises a classical computing entity, a controller, and a quantum processor. The controller is configured to control operation of the quantum processor and communicate with the computing entity. The controller causes performance of syndrome circuit segments to generate syndromes of logical qubits. The syndrome circuit segment is performed at least partially by causing performance of a sequence of transportation operations and at-least-two-physical-qubits interactions. Each transportation operation of the sequence causes physical transport of at least one of a respective data qubit of the logical qubit or a respective ancilla qubit into a respective interaction zone defined by the quantum processor. A respective at-least-two-physical-qubits interaction is performed within the respective interaction zone. Using the syndrome, at least one quantum error correction is determined; and the controller causes a classical memory to be updated based on the syndrome and/or the quantum error correction.

Fault tolerant quantum error correction using physical transport of qubits

Various embodiments provide methods, apparatuses, systems, or computer program products for performing decreased crosstalk atomic object reading/detection. A controller is operatively connected to components of a system comprising a confinement apparatus comprising RF electrodes defining an RF null axis and a plurality of longitudinal electrodes. The components comprise voltage sources and manipulation sources. The controller is configured to cause an atomic object being read and neighboring atomic object(s) to be confined by the confinement apparatus; and cause the voltage sources to provide first control signals to longitudinal electrodes. The first control signals cause the longitudinal electrodes to generate a push field configured to cause one of the atomic object being read or the neighboring atomic object(s) to move off the RF null axis. The controller is further configured to cause a manipulation source to generate/provide a reading beam that is at least partly incident on the atomic object being read.

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Broomfield, CO, United States of America

Brian Neyenhuis