Macroscopic quantum resonators (MAQRO)
Rainer Kaltenbaek, Gerald Hechenblaikner, Nikolai Kiesel, Oriol, Romero-Isart, Keith C. Schwab, Ulrich Johann, Markus Aspelmeyer

TL;DR
MAQRO is a proposed space mission aiming to test quantum superpositions of macroscopic objects and develop advanced inertial sensors, potentially revealing new physics and supporting fundamental scientific inquiries.
Contribution
It introduces a novel space-based experimental setup combining DECIDE and CASE to explore macroscopic quantum phenomena and inertial sensing in a unique environment.
Findings
Proposes testing quantum superpositions with objects containing over 10^8 atoms.
Demonstrates the potential for space-based inertial sensors based on optically trapped microspheres.
Provides a framework for testing the universality of free fall with large mass differences.
Abstract
Quantum physics challenges our understanding of the nature of physical reality and of space-time and suggests the necessity of radical revisions of their underlying concepts. Experimental tests of quantum phenomena involving massive macroscopic objects would provide novel insights into these fundamental questions. Making use of the unique environment provided by space, MAQRO aims at investigating this largely unexplored realm of macroscopic quantum physics. MAQRO has originally been proposed as a medium-sized fundamental-science space mission for the 2010 call of Cosmic Vision. MAQRO unites two experiments: DECIDE (DECoherence In Double-Slit Experiments) and CASE (Comparative Acceleration Sensing Experiment). The main scientific objective of MAQRO, which is addressed by the experiment DECIDE, is to test the predictions of quantum theory for quantum superpositions of macroscopic objects…
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Taxonomy
TopicsPhotonic and Optical Devices
