Seminar detail: Novel approach to neutron electric dipole moment search using weak measurement

Date&Time	Mon May 25 2020 (14:00 - 15:00)
Speaker	Teppei Kitahara
Affiliation	Nagoya U
Title	Novel approach to neutron electric dipole moment search using weak measurement
Abstract	This seminar is based on my recent work https://arxiv.org/abs/2002.11731. We propose a novel approach in a search for the neutron electric dipole moment (EDM) by taking advantage of signal amplification in a weak measurement, known as weak value amplification. Considering an analogy to the weak measurement that can measure the spin magnetic moment interaction, we examine an experimental setup with a polarized neutron beam through an external electric field with spatial gradient, where the signal is sensitive to the EDM interaction. In particular, a dedicated analysis of effects from impurities in pre- and post-selections is performed. We show that the weak value amplification occurs, and demonstrate a potential sensitivity of the proposed setup to the neutron EDM.
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