There have been a lot of announcements recently regarding new chips or new simulators that contain a record number of qubits. We thought it would be useful to our readers to compile all the information into one handy table that you can see below. Note that the data shown for the hardware items are for physical qubits without any error correction.
As we see more announcements in the coming months, you should remember that not all qubits are created equal. A design that has qubits with long coherence times, high gate fidelities, and large connectivities may provide far better results than one that has many more qubits without these characteristics. Unfortunately, these parameters are often not released publicly, so we are unable to publish them at this time.
The table below was compiled from publicly available sources as of November 2017. Please let us know at firstname.lastname@example.org if you see any corrections that are needed or new entries to add.
|Silicon Quantum Computing Pty||Gate||Spin||N/A||10|
|Univ. of Wisconsin||Gate||Neutral Atoms||49||TBD|
|Harvard/MIT||Quantum Simulator||Rydberg Atoms||51||TBD|
|Univ. of Maryland / NIST||Quantum Simulator||Ion Trap||53||TBD|
|iARPA QEO Research Program||Annealing||Superconducting||N/A||100|
|NTT/Univ. of Tokyo/Japan NII||Qtm Neural Network||Photonic||2048||100,000|
|IBM Research||Software Simulator||Classical||56||N/A|
|Microsoft – PC||Software Simulator||Classical||30||N/A|
|Microsoft – Azure||Software Simulator||Classical||40||N/A|
|Rigetti – Forest||Software Simulator||Classical||36||N/A|
|ETH Zurich||Software Simulator||Classical||45||N/A|
Updated January 14, 2018