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U.S. Department of Energy Office of Science

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The floating block method pictured as ice blocks and the sea. The method applies a filtering process called imaginary time evolution to two Hamiltonians, represented by ice and sea. It gives the overlap between the two Hamiltonians’ lowest energy states.

Computing How Quantum States Overlap

The floating block method provides the tools to compute how quantum states overlap and how to build fast and accurate emulators of those systems.

The weight of antihydrogen atoms (a positively charged positron or anti-electron orbiting a negatively charged antiproton) balances the weight of hydrogen atoms (a negatively charged electron orbiting a positively charged proton).

Antihydrogen Falls Downward!

Settling a long-standing question, scientists have proven that antihydrogen falls downward in a first-ever direct experiment.

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