Ionq, Inc.

Duke University

Hermann Uys

Michael Lurie Goldman

Jonathan Albert Mizrahi

Adam Daniel West

Jungsang Kim

Yunseong Nam

Jason Madjdi Amini

Kai Hudek

Neal Pisenti

Reinhold Blumel

Kenneth Wright

Jeremy Matthew Sage

Ming Li

Peter Lukas Wilhelm Maunz

Nikodem Grzesiak

Aspects of the present disclosure may include a method and/or a system for applying a plurality of radio frequency (RF) fields to one or more surface electrode trapped ions, applying one or more Raman laser beams to the one or more surface electrode trapped ions, applying, for each of the plurality of RF fields, a plurality of compensation fields to identify a plurality of bright state probabilities for each of the plurality of RF fields, identifying a plurality of bright state curves each associated with the plurality of bright state probabilities for each of the plurality of RF fields, identifying a cancellation compensation field associated with the point of intersection.

Methods and apparatuses for stray field compensation by laser beam referencing

Aspects of the present disclosure may include a method and/or a system for applying, to one or more surface electrode trapped ions, a first electric field in a first direction, applying, to the one or more surface electrode trapped ions, a plurality of second electric fields in a second direction while applying the first electric field, wherein the second direction is substantially orthogonal to the first direction, measuring, for each of the plurality of second electric fields, a corresponding micromotion signal associated with the application of one or more of the first electric field or one of the plurality of second electric fields, identifying a maximum micromotion signal of a plurality of micromotion signals associated with the plurality of second electric fields, and identifying a compensation field associated with the maximum micromotion signal.

Methods and apparatuses for stray field compensation normal to a surface electrode ion trap

The use of multiple ion chains in a single ion trap for quantum information processing (QIP) systems is described. Each chain can have its own set of laser beams with which to implement and operate quantum gates within that chain, where each chain may therefore correspond to a single quantum computing register or core. Operations can be performed in parallel across all of these chains as they can be treated independently from each other. To implement and operate quantum gates between different chains, neighboring chains are merged into a single, larger chain, in which one can perform quantum gates between any of the ions in the larger chain. The combined chains can then be separated again by another shuttling event as needed. To implement and operate quantum gates between ions which do not occupy neighboring chains, swap gates can be used via a sequence of intervening chains.

Quantum computer based on manipulation of ion chains

A method and system is provided for operating a quantum information processing (QIP) system, including a dual-space, single-species architecture for trapped-ion quantum information processing. An exemplary method of preparing the ions include i) applying a first optical beam to the plurality of ions to shelve at least a portion of the plurality of ions from a first state to a second state, ii) applying a second optical beam to the plurality of ions to deshelve the at least a portion of the plurality of ions from the second state to a third state, iii) applying a third optical beam to optically pump the at least a portion of the plurality of ions from the third state and to a fourth state, and iv) iteratively repeat i) to iii) to transition a remaining portion of the plurality of ions to the fourth state.

Methods and apparatuses for barium states preparations for quantum operations

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Annapolis, MD, United States of America

Hermann Uys