8legs: Hefei, china

Your Followed Topics

#1 out of 267.44%

Jiuzhang 4.0, China’s latest photonic quantum computer, reportedly outperforms the world’s fastest classical supercomputer in a published calculation.
The team reports Jiuzhang 4.0 completed a Gaussian boson sampling task in 25 microseconds.
The calculation is said to take more than 10^42 years for El Capitan to finish, according to the university.
Jiuzhang 4.0 uses 1,024 squeezed-state inputs across an 8,176-mode network and can detect up to 3,050 photons.
Researchers claim no realistic classical resources can match the accuracy achieved by Jiuzhang 4.0’s MPS algorithm.
The Jiuzhang 4.0 project is led by Pan Jianwei’s team at the University of Science and Technology of China.
The report was published in the peer-reviewed journal Nature on May 13.
Jiuzhang 4.0 is described as a programmable photonic quantum computing prototype.
The article frames Jiuzhang 4.0 as advancing Beijing’s push toward quantum supremacy.

Vote 0

#2 out of 2

Jiuzhang 4.0 demonstrates Gaussian boson sampling with 1,024 squeezed states in an 8,176-mode circuit.
The experiment reports 92% source efficiency and 51% overall system efficiency.
Results are benchmarked against current classical simulation methods to verify quantum advantage.
The work advances toward fault-tolerant photonic quantum computing with potential error-correcting codes.
The Jiuzhang 4.0 architecture enables a cubic scaling of connectivity in a large Hilbert space.
The study provides extensive supplementary data and data access through institutional resources.
The authors emphasize the potential for three-dimensional cluster states in scalable photonic hardware.
The article cites extensive prior work on Gaussian boson sampling and related quantum computing concepts.
The experiment’s setup features three cascaded interferometers with delay loops for stabilization.
The publication confirms ongoing progress toward scalable photonic fault-tolerant quantum computers.

Vote 0

Unlimited Access

Personalized Feed

Full Experience

By continuing, you agree to the Privacy Policy.. You also agree to receive our newsletters, you can opt-out any time.

Create an account and enjoy content that interests you with your personalized feed

Unlimited Access

Personalized Feed

Full Experience

By continuing, you agree to the Privacy Policy.. You also agree to receive our newsletters, you can opt-out any time.