Equipe finlandesa detecta energia recorde com sensor quântico

Pesquisadores na Finlândia mediram um sinal de energia menor que um zeptojoule usando um novo calorímetro. O feito abre caminhos para o aprimoramento da computação quântica e para a busca por matéria escura.

O professor da Academia Mikko Möttönen liderou a equipe na Universidade Aalto, em colaboração com a IQM e o Centro de Pesquisa Técnica da Finlândia. Eles construíram o dispositivo a partir de metais supercondutores e condutores normais que reagem a mudanças mínimas de temperatura. O sensor registrou um pulso eletromagnético de 0,83 zeptojoules após uma filtragem cuidadosa de sinais de micro-ondas. Segundo os pesquisadores, este é o primeiro registro calorimétrico com tal sensibilidade.

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