Matter-wave interference has been observed for a wide range of objects: from electrons to neutrons and complex molecules. On the other hand, a double-slit-like experiment has never been carried out with positrons (the anti-particle of the electron) or with any other system containing antimatter. This thesis provides the theoretical foundations and experimental results of a Talbot-Lau interferometer specifically designed for this goal. Future applications include the measurement of the gravitational acceleration of positronium, to provide a test of the weak equivalence principle on a matter-antimatter symmetric, purely leptonic system.
QUPLAS: TOWARDS ANTIMATTER INTERFEROMETRY / S. Sala ; tutor: M. G. Giammarchi ; co-tutor: S. Olivares ; coordinatore: F. Ragusa. DIPARTIMENTO DI FISICA, 2018 Oct 31. 31. ciclo, Anno Accademico 2018. [10.13130/sala-simone_phd2018-10-31].
QUPLAS: TOWARDS ANTIMATTER INTERFEROMETRY
S. Sala
2018
Abstract
Matter-wave interference has been observed for a wide range of objects: from electrons to neutrons and complex molecules. On the other hand, a double-slit-like experiment has never been carried out with positrons (the anti-particle of the electron) or with any other system containing antimatter. This thesis provides the theoretical foundations and experimental results of a Talbot-Lau interferometer specifically designed for this goal. Future applications include the measurement of the gravitational acceleration of positronium, to provide a test of the weak equivalence principle on a matter-antimatter symmetric, purely leptonic system.
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