Quantinuum LLC

Honeywell International Inc.

Russell Stutz

Christopher Langer

Patricia Lee

Philip Makotyn

David Edward Hayes

John Gaebler

David Hayes

Mary Rowe

Dominic George Lucchetti

Brian Vincent Estey

Benjamin Spaun

Ciaran Ryan-Anderson

Brian Neyenhuis

Thomas Howard Loftus

Natalie Christine Brown

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

The disclosure provides an atomic object trap apparatus and a method of operating such. The atomic object trap apparatus comprises two or more radio frequency (RF) electrodes formed concentrically in a substantially elliptical shape; and three or more trapping and/or transport (TT) electrode sequences formed concentrically in a substantially elliptical shape. The two or more RF electrodes and the three or more TT electrode sequences define a substantially elliptically-shaped atomic object trap. At least one TT electrode sequence of the three or more TT electrode sequences is disposed concentrically between the two or more RF electrodes. Each RF electrode and TT electrode sequence is elliptically shaped such that each comprises two substantially parallel longitudinal regions and two arc-spanning beltway regions, the four regions forming a substantially elliptical shape. The method is directed to operating a quantum computing system comprising an example atomic object trap apparatus.

Apparatuses, systems, and methods for elliptical atomic object traps

An ion trap apparatus is provided. The ion trap apparatus comprises two or more radio frequency (RF) rails formed with substantially parallel longitudinal axes and with substantially coplanar upper surfaces; and two or more sequences of trapping and/or transport (TT) electrodes with each sequence formed to extend substantially parallel to the substantially parallel longitudinal axes of the RF rails. The two or more RF rails and the two or more sequences of TT electrodes define an ion trap. The two or more sequences of TT electrodes are arranged into a number of zones. Each zone comprises wide matched groups of TT electrodes and at least one narrow matched group of TT electrodes. A wide TT electrode is longer and/or wider in a direction substantially parallel to the substantially parallel longitudinal axes of the RF rails than a narrow TT electrode.

Apparatuses, systems, and methods for ion traps

A quantum computer comprises an apparatus having atomic objects therein; a first manipulation source configured to provide a first manipulation signal; a second manipulation source configured to provide a second manipulation signal; and a controller. The controller is configured to cause the first manipulation source to provide the first manipulation signal to a region of the apparatus; and cause the second manipulation source to provide the second manipulation signal to the region. The first manipulation signal is tuned to excite atomic objects within the region from a leaked state outside of the qubit space to an intermediary manifold and to suppress excitation of atomic objects that are in the qubit space. The second manipulation signal is tuned to excite atomic objects from the intermediary manifold to a decay manifold from which there is a non-zero probability that an atomic object will decay into the qubit space.

Suppressing/transforming leakage errors in hyperfine qubits

Growing community of inventors

Broomfield, CO, United States of America

Russell Stutz