 The Einstein equivalence principle states that all objects fall at the same rate regardless of their composition or mass. This has been tested extensively in classical settings but it remains unclear how this principle applies to quantum systems. A new experiment proposed here uses quantum superpositions of two masses to test whether they experience identical accelerations. If the masses are found to be equivalent then this would imply that the weak version of the equivalence principle holds for quantum systems. This article was authored by Segato Bose, Anupam Mazumdar, Martin Schutt, and others.