A large-momentum-transfer matter-wave interferometer to measure the effect of gravity on positronium

Abstract

This paper reports the study of a new interferometric configuration to measure the effect of gravity on positronium. A Mach-Zehnder matter-wave interferometer has been designed to operate with single-photon transitions and to transfer high momentum to a 200 eV positronium beam. The work shows the results and methods used to simulate the interferometer and estimate the operating parameters and the time needed to perform the experiment. It has been estimated that within less than one year, the acquisition time is sufficient to achieve a 10\% accuracy level in measuring positronium gravitational acceleration, even with a poorly collimated beam, which is significant for theoretical models describing matter-antimatter symmetry. These results pave the way for single photon transition large momentum transfer interferometry with fast atomic beams, which is particularly useful for studies with antimatter and unstable atoms.

24 pages, 11 figures

References in corpus (15)

• Atom Interferometers
• Measurement of the fine-structure constant as a test of the Standard Model
• Precision Measurement of the Newtonian Gravitational Constant Using Cold Atoms
• A New Method for Gravitational Wave Detection with Atomic Sensors
• An Atomic Gravitational Wave Interferometric Sensor (AGIS)
• Atom Interferometry with up to 24-Photon-Momentum-Transfer Beam Splitters
• Precision Study of Positronium: Testing Bound State QED Theory
• Atom-wave diffraction between the Raman-Nath and the Bragg regime: Effective Rabi frequency, losses, and phase shifts
• Large Momentum Transfer Clock Atom Interferometry on the 689 nm Intercombination Line of Strontium
• Mid-band gravitational wave detection with precision atomic sensors
• Toward inertial sensing with a monochromatic $2^{3}S$ positronium beam
• Positron production using a 9 MeV electron linac for the GBAR experiment
• An atom interferometer driven by a picosecond frequency comb
• Quantum interference measurement of the free fall of anti-hydrogen
• Towards the formation of a positronium coherent beam

Cited by in corpus (1)

• Equivalent Gravities and Equivalence Principle: Foundations and experimental implications