Bulletin of the American Physical Society
APS March Meeting 2018
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session E58: Quantum Foundations
8:00 AM–11:00 AM,
Tuesday, March 6, 2018
LACC Room: Petree Hall C
Sponsoring Unit: DQI
Chair: Matthew Leifer, Chapman Univ
Abstract: E58.00004 : Measuring a deviation from the Superposition Principle in slit based interference experiments: towards a non-zero Sorkin parameter
9:48 AM–10:24 AM
(Raman Research Institute)
(Raman Research Institute)
The superposition principle forms the heart of all modern applications and properties of quantum mechanics such as quantum entanglement and quantum computing. However, its usual application to slit based interference experiments has caveat in both optics and quantum mechanics where it is often incorrectly assumed that the boundary condition represented by slits opened individually is same as them being opened together. In theory work carried out over the last few years, we have quantified the correction term in terms of the Sorkin parameter [1,2]. In this talk, we will report the first reported measurement of a deviation from the superposition principle in the microwave domain using antennas as sources and detectors of the electromagnetic waves. This deviation is quantified through the Sorkin parameter which can be as big as 6% in our experiment . Measuring a non-zero Sorkin parameter not only gives experimental verification to the theoretical predictions about the deviation from the superposition principle in interference experiments, it also exemplifies an experimental scenario in which non zero Sorkin parameter need not necessarily imply falsification of Born rule for probabilities in quantum mechanics which has been the basis for several experiments in recent years .
1. R.Sawant, J.Samuel, A.Sinha, S.Sinha, U.Sinha, Non classical paths in quantum interference experiments. Phys.Rev.Lett. 113, 120406, 2014.
2. A.Sinha, Aravind H.V., U.Sinha, On the Superposition principle in interference experiments. Scientific Reports 5, 10304, 2015.
3. G. Rengaraj, Prathwiraj U, Surya Narayana Sahoo, R. Somashekhar and Urbasi Sinha, Measuring the deviation from the superposition principle in interference experiments, arXiv:1610.09143.
4. U.Sinha, C.Couteau, T.Jennewein, R.Laflamme, G.Weihs, Ruling out multi-order interference in quantum mechanics. Science 329, 418-421, 2010.
The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.
1 Physics Ellipse, College Park, MD 20740-3844
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700