We simulate the 18x18 cylinder in our paper (324 qubits -see Fig. 5). Each quench was done with a single CPU, the final wavefunction takes up 40MB of RAM, and the accuracy of the simulation is better than the quantum annealer (see Fig. 3a scaling). So the laptop claim is well-founded.

Dynamics of disordered quantum systems with two- and three-dimensional tensor networks Quantum spin glasses form a good testbed for studying the performance of various quantum annealing and optimization algorithms. In this work we show how two- and three-dimensional tensor networks can ...

In a new preprint arxiv.org/abs/2503.05693, led by Joseph Tindall and Antonio Mello at Flatiron CCQ, we simulate annealing of disordered quantum magnets 🧲 ⌛ and in many cases find better accuracy than recent results from D-Wave devices and leading classical methods (c.f. arxiv.org/abs/2403.00910).