First demonstration of antimatter wave interferometry

Abstract

Interference of matter waves is at the heart of quantum physics and has been observed for a wide range of particles from electrons to complex molecules. Here, we demonstrate matter wave interference of single positrons using a period-magnifying Talbot-Lau interferometer based on material diffraction gratings. The system produced high-contrast periodic fringes, which were detected by means of nuclear emulsions capable of determining the impact point of each individual positron with submicrometric resolution. The measured energy dependence of fringe contrast in the range of 8 to 16 keV proves the quantum-mechanical origin of the periodic pattern and excludes classical projective effects, providing the first observation to date of antimatter wave interference. Future applications of this interferometric technique include the measurement of the gravitational acceleration of neutral antimatter systems exploiting the inertial sensing capabilities of Talbot-Lau interference.

Testing gravity with cold atom interferometry: results and prospects

“…Current efforts are mainly devoted to increasing the rate of production of antihydrogen and reducing the temperature in order to enable precision spectroscopy and gravity measurements using atom interferometry. Tests of the weak equivalence principle for antimatter could also be performed with muonium [229,230] and with positronium [231,232].…”

Теория Стационарной Самосогласованной Вселенной

“…Таким образом, -солитоны антиматерии трасформированные в античастицы, до встречи со своим фундаментальносцепленным партнером и последующей аннигиляции, полностью подчиняются законам, действующими в . Собственно, именно это, на взгляд автора и подтверждают экспериментальные данные и исследования, проводимые различными коллаборациями [132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151]. Природа постаралась сделать все, чтобы скрыть прямые доказательства реальности существования пространства-времени .…”

First Demonstration of Antimatter Quantum Interferometry

“…The periodic spatial distribution is recorded by the emulsion detector that has a ∼ µm resolution. The emulsion has been tested at the QUPLAS energies in a dedicated "engineering" run 20 and the setup has been aligned and calibrated as described in [21].…”