Systems, methods, and apparatus for qubit state readout
US8169231B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2008 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Nov 23, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y10/00
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A superconducting readout system includes a computation qubit; a measurement device to measure a state of the computation qubit; and a latch qubit that mediates communicative coupling between the computation qubit and the measurement device. The latch qubit includes a qubit loop that includes at least two superconducting inductors coupled in series with each other; a compound Josephson junction that interrupts the qubit loop that includes at least two Josephson junctions coupled in series with each other in the compound Josephson junction and coupled in parallel with each other with respect to the qubit loop; and a first clock signal input structure to couple clock signals to the compound Josephson junction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.