Probing macroscopic realism via Ramsey correlation measurements
- Author(s)
- A. Asadian, Caslav Brukner, P. Rabl
- Abstract
We describe a new and experimentally feasible protocol for performing fundamental tests of quantum mechanics with massive objects. In our approach a single two level system is used to probe the motion of a nanomechanical resonator via multiple Ramsey interference measurements. This scheme enables the measurement of modular variables of macroscopic continuous variable systems and we show that correlations thereof violate a Leggett-Garg inequality and can be applied for tests of quantum contextuality. Our method can be implemented with a variety of different solid state or photonic qubit-resonator systems and provides a clear experimental signature to distinguish the predictions of quantum mechanics from those of other alternative theories at a macroscopic scale.
- Organisation(s)
- Quantum Optics, Quantum Nanophysics and Quantum Information
- External organisation(s)
- Technische Universität Wien, Österreichische Akademie der Wissenschaften (ÖAW)
- Journal
- Physical Review Letters
- Volume
- 112
- No. of pages
- 5
- ISSN
- 0031-9007
- DOI
- https://doi.org/10.1103/PhysRevLett.112.190402
- Publication date
- 05-2014
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103025 Quantum mechanics
- ASJC Scopus subject areas
- Physics and Astronomy(all)
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/probing-macroscopic-realism-via-ramsey-correlation-measurements(c1bdf97b-60a7-4b37-89af-b66d7cec5a4a).html