Details

Autor(en) / Beteiligte

• Sulyok, G.
• Lemmel, H.
• Rauch, H.

Titel

Neutrons in a time-dependent magnetic field: Photon exchange and decoherence modeling

Ist Teil von

• Physical review. A, Atomic, molecular, and optical physics, 2012-03, Vol.85 (3), Article 033624

Erscheinungsjahr

2012

Quelle

American Physical Society

Beschreibungen/Notizen

• If a quantum mechanical particle passes a spatially finite region of a purely time-dependent potential, coherent emission and absorption of energy take place. Due to Zeeman interaction, this situation can be realized with neutrons crossing an oscillating magnetic field. We solve the corresponding Schrodinger equation for fields consisting of an arbitrary number of frequencies and measure the calculated transition amplitudes for the quantized energy transfer by means of time-dependent neutron interferometry. Investigating the interferometer contrast for magnetic signals consisting of a high number of modes whose phases are randomly distributed shows that noise fields and therefore decoherence processes can be modeled in this calculation as well.