A graph based on the researchers’ equations ... The study authors made two assumptions to understand the unidirectional flow of time in a quantum system. Their first assumption was that the ...

These donor graphs were generated starting with graphs of exclusively ... for which finding optimal parameters may take a prohibitively long time. Thus, quantum devices will be used only to sample ...

The team tested graph coloring in simulations of large hydrogen model systems, which are incredibly complex testbeds—simple chemical compositions that demand quick quantum data preparation ...

In this work, we propose a graph isomorphism algorithm based on continuous-time quantum walks, where we construct the graph certificates from the output probabilities of continuous-time quantum walks ...

for graph classification. We commence by performing the Continuous-time Quantum Walk (CTQW) on each graph structure, and compute the Averaged Mixing Matrix (AMM) to describe how the CTQW visits all ...

"These quantum computer algorithms were originally developed in a completely different context. We used them here for the first time to calculate electron densities of molecules, in particular ...

The researchers emphasise that these perplexing results highlight a peculiar quirk of quantum mechanics rather than a radical shift in our understanding of time. "This is tough stuff, even for us ...

"A negative time delay may seem paradoxical, but what it means is that if you built a 'quantum' clock to measure how much time atoms are spending in the excited state, the clock hand would ...

Now, researchers at the University of Toronto, through innovative quantum experiments, say they have demonstrated that "negative time" isn't just a theoretical idea, it exists in a tangible ...

Measuring values of the electrons' momenta and plotting them out on a three-dimensional graph ... for the first time. This massless particle essentially functions like a super-efficient electron, and ...