21–23 May 2018
Topland | Hotel & Convention Center Phitsanulok
Asia/Bangkok timezone

A study of matter-wave diffraction for particle in the near field regime under the influence of a uniform electric field

21 May 2018, 17:45
1h
Ayutthaya Room

Ayutthaya Room

Poster Physics Education A02:Physics Education (Poster)

Speaker

Mr Chaimongkol Artyotha (Department of Physics, Faculty of Science, Burapha University, ChonBuri Province, 20131, Thailand)

Description

For various experiments to investigate quantum effects, matter-wave diffraction is an apparent example. Particle diffractions have been measured even at the large molecular level, such as the C$_{60}$ molecules. In order to describe the matter-wave diffraction of C$_{60}$ beam, we assume the initial wave functions behind a grating in form of the Fourier series with a Gaussian distribution function. By applying the Feymann path integral, the exact wave functions of the molecule diffraction in the near-field regime can be derived analytically. The obtained probability density distributions are corresponding to interference fringes as found in the Fresnel diffraction. The probability of finding C$_{60}$ molecules, behind the grating at the Talbot length, consistency with the mentioned experimental data of C$_{60}$ diffractions.

Primary author

Mr Chaimongkol Artyotha (Department of Physics, Faculty of Science, Burapha University, ChonBuri Province, 20131, Thailand)

Co-authors

Boonlit Krunavakarn (Department of Physics, Faculty of Science, Burapha University, ChonBuri Province, 20131, Thailand) Nupan Kheaomaingam (Department of Physics, Faculty of Science, Burapha University, ChonBuri Province, 20131, Thailand) Sarayut Deachapunya (Department of Physics, Faculty of Science, Burapha University, ChonBuri Province, 20131, Thailand) Sorakrai Srisuphaphon (Department of Physics, Faculty of Science, Burapha University, ChonBuri Province, 20131, Thailand)

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