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Technology comparison table

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Technology
Rydberg Atoms (QuEra)
Trapped Ions
Superconducting
Supercon-
ducting
Photonics
Non-Idle
Coherence Time
30 us
(-> 1 ms)
0.1 s
(-> 1 s)
Up to 320 us
~150 us
Gate Operating
Time
250 ns
(-> 10 ns)
100 us
(->2 us)
10-50 ns
1 ns
2Q Gate
Fidelity
97.4%
(->99.99%)
99.5%
(->99.99%)
99.5%
98%
Connectivity
Neighbors 15+ Hardware -> All-to-All Software
All-to-All Hardware
or Software
Neighbors 15+ Hardware -> All-to-All Software
Coherence: Gate
Ratio
~10^3
(-> ~10^6)
~10^2
(-> ~10^6)
~10^3
~10^5
Interconnected
Modules
64+(1000+ potentially)
64+ (any-to-any
connectivity)
1000+ potentially
1000+ potentially