US 11,941,483 B2
Cross-talk reduction in fault tolerant quantum computing system
Connor Hann, New Haven, CT (US); Kyungjoo Noh, Pasadena, CA (US); Patricio Arrangoiz Arriola, San Francisco, CA (US); Christopher Chamberland, Pasadena, CA (US); and Fernando Brandao, Pasadena, CA (US)
Assigned to Amazon Technologies, Inc., Seattle, WA (US)
Filed by Amazon Technologies, Inc., Seattle, WA (US)
Filed on Mar. 30, 2021, as Appl. No. 17/217,946.
Claims priority of provisional application 63/121,794, filed on Dec. 4, 2020.
Prior Publication US 2022/0180236 A1, Jun. 9, 2022
Int. Cl. G06N 10/00 (2022.01); G01R 31/3177 (2006.01); G06N 10/40 (2022.01); G06N 10/70 (2022.01); H04B 10/00 (2013.01); H04B 10/70 (2013.01)
CPC G06N 10/00 (2019.01) [G01R 31/3177 (2013.01); G06N 10/40 (2022.01); G06N 10/70 (2022.01); H04B 10/00 (2013.01); H04B 10/70 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A system comprising:
a plurality of mechanical resonators;
a multiplexed control circuit coupled with the mechanical resonators configured to stabilize arbitrary coherent state superpositions (cat states) of the mechanical resonators, wherein to stabilize the cat states, the multiplexed control circuit is configured to:
drive respective storage modes of the respective mechanical resonators; and
dissipate phonons from the respective mechanical resonators via an open transmission line coupled to the multiplexed control circuit that is configured to absorb photons from a dump mode of the multiplexed control circuit,
wherein the mechanical resonators are detuned such that phonons supplied from the multiplexed control circuit are supplied in an incoherent manner; and
one or more filters configured to suppress one or more spurious photon dissipation processes of the multiplexed control circuit that lead to cross-talk between the storage modes of the respective mechanical resonators if not suppressed.