Hannover 2013 – scientific programme

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A: Fachverband Atomphysik

A 33: Interaction with strong or short laser pulses III

A 33.2: Talk

Thursday, March 21, 2013, 11:15–11:30, B 302

Interference Effects in Electron-Positron Pair Creation by the Interaction of a Bichromatic Laser Field and a Nucleus — •Sven Augustin and Carsten Müller — Heinrich-Heine Universität, Düsseldorf

We investigate quantum interferences in electron-positron pair creation in the collision of a relativistic nuclear beam and an intense laser pulse.

In particular, we consider a laser field consisting of two modes with commensurate frequencies. In this situation, quantum path interference may arise which can lead to an increase or a decrease of the total pair production rate. The interference is also visible in angular differential rates which are discussed both in the nuclear rest frame and the laboratory frame.