公开(公告)号：US20230229954A1

公开(公告)日：2023-07-20

申请号：US18098011

申请日：2023-01-17

申请人： ColdQuanta, Inc.

发明人： Daniel C. Cole ,  Woo Chang Chung

IPC分类号： G06N10/40

CPC分类号： G06N10/40

摘要： While a qubit control system (e.g., a laser system) is in a first configuration, it causes a qubit state (as represented as a point on the surface of a Bloch sphere) of a quantum state carrier (QSC), e.g., an atom, to rotate in a first direction from an initial qubit state to a first configuration qubit state. While the qubit control system is in a second configuration, it causes the QSC state to rotate in a second direction opposite the first direction from the first configuration qubit state to a second configuration qubit state. The second configuration qubit state is read out as a |0〉 or |1〉. Repeating these actions results in a distribution of |0〉s and |1〉s that can be used to determine which of the two configurations results in higher Rabi frequencies. Iterating the above for other pairs of configurations can identify a configuration that delivers the most power to the QSC and thus yields the highest Rabi frequency. This process can be used, for example, to align a laser so that its pulse yields a maximum Rabi frequency for an atom.

公开(公告)号：US11928554B2

公开(公告)日：2024-03-12

申请号：US18098011

申请日：2023-01-17

申请人： ColdQuanta, Inc.

发明人： Daniel C. Cole ,  Woo Chang Chung

IPC分类号： G06N10/40

CPC分类号： G06N10/40

摘要： While a qubit control system (e.g., a laser system) is in a first configuration, it causes a qubit state (as represented as a point on the surface of a Bloch sphere) of a quantum state carrier (QSC), e.g., an atom, to rotate in a first direction from an initial qubit state to a first configuration qubit state. While the qubit control system is in a second configuration, it causes the QSC state to rotate in a second direction opposite the first direction from the first configuration qubit state to a second configuration qubit state. The second configuration qubit state is read out as a |0 or |1. Repeating these actions results in a distribution of |0s and |1s that can be used to determine which of the two configurations results in higher Rabi frequencies. Iterating the above for other pairs of configurations can identify a configuration that delivers the most power to the QSC and thus yields the highest Rabi frequency. This process can be used, for example, to align a laser so that its pulse yields a maximum Rabi frequency for an atom.