Tomography of many-body weak values : Mach-Zehnder interferometry

Shpitalnik, Vadim and Gefen, Yuval and Romito, Alessandro (2008) Tomography of many-body weak values : Mach-Zehnder interferometry. Physical review letters, 101 (22): 226802. ISSN 0031-9007

Abstract

We propose and study a weak value (WV) protocol in the context of a solid state setup, specifically, an electronic Mach-Zehnder interferometer. This is the first specific proposal to measure both the real and imaginary part (i.e., complete tomography) of a WV. We also analyze the manifestation of many-body physics in the WV to be measured, including finite temperature and shot-noise-like contributions.