公开(公告)号：US20230114436A1

公开(公告)日：2023-04-13

申请号：US17913670

申请日：2021-03-31

申请人： OXFORD IONICS LIMITED

发明人： Tom Harty ,  Chris Ballance ,  Jochen Wolf

IPC分类号： G21K1/00 ,  G06N10/40

摘要： A method is presented, which includes trapping a charged particle at a first position using an electromagnetic trap and providing a static magnetic field at the first position such that a qubit transition of the charged particle is defined, and providing, using an entangling electrode, an oscillating magnetic field. The oscillating magnetic field present at the first position does not contain a polarisation component which directly couples to the qubit transition. The oscillating magnetic field has a spatial gradient at the first position, of the polarisation component of the oscillating magnetic field which couples the qubit transition to the motion of the charged particle.

公开(公告)号：US20240242959A1

公开(公告)日：2024-07-18

申请号：US18541778

申请日：2023-12-15

申请人： Infineon Technologies Austria AG ,  Oxford Ionics Limited

发明人： Clemens Rössler ,  Clemens Matthiesen ,  Chris Ballance

IPC分类号： H01J49/42

CPC分类号： H01J49/424 ,  H01J49/429

摘要： A micro-fabricated device for controlling trapped ions includes a substrate of a dielectric material or a semiconductor material. A structured electrode layer is disposed above the substrate. The structured electrode layer forms a plurality of electrodes of an ion trap configured to trap ions in a space above the structured electrode layer. The structured electrode layer includes a low phonon density of states layer, referred to as low-PDOS layer, the low-PDOS layer being of TiN or TiW or Ti or W and having a thickness of equal to or greater than 100 nm.