公开(公告)号：EP4012626A1

公开(公告)日：2022-06-15

申请号：EP20212481.4

申请日：2020-12-08

申请人： IQM Finland Oy

发明人： Hassel, Juha ,  Sevriuk, Vasilii ,  Heinsoo, Johannes ,  Tan, Kuan ,  Möttönen, Mikko

IPC分类号： G06N10/00

摘要： It is an objective to provide an arrangement for qubit readout and a quantum computing system. According to an embodiment, an arrangement (100) for qubit readout comprises: at least one qubit (101); a controllable energy relaxation structure (102) comprising at least one junction, wherein the controllable energy relaxation structure (102) is coupled to the at least one qubit (101), and is configured to absorb, in response to a control signal, at least one photon from the at least one qubit (101) via photon-assisted tunnelling of a charge through the at least one junction; a charge storage (104), configured to store the tunnelled charge; and a charge sensing structure (103) coupled to the charge storage (104), configured to provide a readout signal in response to detecting the tunnelled charge in the charge storage (104) .