Postponement of the "AEIS Colloquium on Signatures of Matter's Mesoscopic States" Regret and postponement Fundamental Research 8 October 2020 - 9 October 2020 Paris, France © AEIS The "AEIS Colloquium on Signatures of Matter's Mesoscopic States" to take place on October 8 and 9, 2020 is postponed to the spring of 2021.AEIS (Interdisciplinary European Academy of Sciences - Académie Européenne Interdisciplinaire des Sciences) will provide in due time a new announcement with final dates.AEIS is sorry but had no choice due to the COVID-19 pandemic. Keywords mesoscopic states, signatures