Fisikawan ciptakan molekul ultradingin berbentuk kupu-kupu pertama

Para peneliti telah memproduksi molekul eksotis yang tampak seperti kupu-kupu, dengan sayap elektron, dengan menggabungkan atom rubidium berukuran raksasa dan normal. Pencapaian ini melengkapi pencarian selama dua dekade akan keluarga molekul raksasa tersebut dan dapat memungkinkan kemajuan lebih lanjut dalam ilmu kuantum.

Molekul tersebut dirakit di Universitas RPTU Kaiserslautern-Landau di Jerman. Para ilmuwan mendinginkan atom rubidium hingga beberapa per sejuta derajat di atas nol mutlak, kemudian menggunakan laser untuk memperbesar beberapa atom secara dramatis sebelum mengikat elektron luar ke atom di sekitarnya. Struktur yang dihasilkan berukuran sekitar 25 nanometer dan merespons medan listrik jauh lebih kuat daripada molekul biasa.

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