Unforgeable quantum money can be stored in an ultracold ‘debit card’
Using the quantum states of particles of light as currency could make for unforgeable transactions, and a new experiment has added a way to save some of that quantum money for future use, too
Using the quantum states of particles of light as currency could make for unforgeable transactions, and a new experiment has added a way to save some of that quantum money for future use, too
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