ELFT HÍRADÓ

[Szeminárium koordinátor <szfi-seminar AT wigner.mta.hu>]

SZFI SeminarAsbóth JánosBME, Wigner FK SZFIHow Google achieved Quantum 
Supremacy with a 53-qubit chipTuesday, 4 February 2020, 10:00, KFKI Campus, 
Bldg. 1, 2nd floor, Conference RoomI will describe what Google's 2019 quantum 
supremacy experiment [1] was, how their quantum computer works, and address 
some of the controversy around the results. Caveat: I am in no way affiliated 
with Google.Google's quantum computing group, headed by John Martinis at 
UCSB, built a quantum computer that completed a computational task many 
orders of magnitude faster (200 sec) than any conventional computer could 
(10000 years), and this advantage is scalable. Their quantum computer 
(codename: Sycamore) has 53 qubits, consists of superconducting circuits 
built with integrated-circuit technology. The task was sampling from a 
special, practically uncomputable random sequence, corresponding to the 
output of a noisy random quantum circuit. I will discuss in detail why this 
specific task was chosen, what statistics tools were used to demonstrate 
supremacy. I will also address some of the criticism about the experiment, 
coming from IBM, Gil Kalai, and others.[1]: Quantum Supremacy using a 
programmable superconducting processor, Arute et al, Nature 574, 505 
(2019) Minden érdeklődőt szívesen látunk! - Everyone is welcome to 
attend.Róbert Juhászszfi-seminar AT wigner.mta.hu