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Questions tagged [google-sycamore]

A 54-qubit superconducting quantum processor by Google Quantum AI which is claimed to have been used to demonstrate quantum computational supremacy.

4 questions with no upvoted or accepted answers
9 votes
0 answers
191 views

How can time crystals be useful in qRAM design?

A time crystal is a phase of a matter which is ordered in time, similar to classical crystals which are ordered spatially. In other words, the structure of a time crystal is ever-changing but with ...
Martin Vesely's user avatar
8 votes
0 answers
284 views

What is a gate-level circuit used in the 2022 Jafferis et al. experiment on Sycamore?

A recently published Nature paper of Jafferis et al. describes an experiment with a handful of qubits performed on Google's Sycamore processor to explore the SYK model in the context of AdS/CFT and ...
Mark Spinelli's user avatar
2 votes
0 answers
90 views

Understanding the supremacy regime plot in Google's "Quantum supremacy using a programmable superconducting processor"

I was going through the Google's 2019 paper & had difficulties regarding some details. How are they calculating XEB in quantum supremacy regime? To calculate the XEB,we also need the ideal ...
Endeavour 's user avatar
2 votes
0 answers
42 views

When we do a linear fit, what is the correlation coefficient of the estimated parameters?

In Google's quantum supremacy experiment, supplementary Section VIIIH, they calculate the correlation coefficient of the linear fit coefficients $p_0$,$p_1$. I can't figure out the definition of this ...
Inm's user avatar
  • 515