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We’ve glimpsed the secret quantum landscape inside all matter
A strange kind of geometry governs how particles move inside matter. Now, for the first time, physicists have uncovered its full shape – and it could transform how we design materials
Even before Berry’s work, French physicists Jean-Pierre Provost and Gérard Vallée laid some of the groundwork for mapping it out by offering a recipe for measuring the distance between electrons’ quantum states. These were, Goldman says, “probably the most controllable qubits in the world”, and he and his team extracted their QGT by repeatedly nudging them with precisely tuned circularly polarised light and measuring how their wave functions responded. Scientists could then design the superconductor of their dreams by twisting and stacking graphene sheets, or some similarly thin material, in a way that maximises quantum properties linked to the QGT, such as stronger superconductivity.
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