Positronium in light-front quantization
| Date/Time: | Thursday, 03 May 2018 - Thursday, 03 May 2018 |
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| Location: | A401 Zaffarano Hall |
| Contact: | |
| Phone: | 515-294-8894 |
| Channel: | College of Liberal Arts and Sciences |
| Actions: | Download iCal/vCal | Email Reminder |
Light-front quantization is an ideal framework to evaluate the structure of relativistic bound states. In this talk I will first review basic ideas of light-front quantization and introduce Basis Light-front Quantization (BLFQ), a non-perturbative method for bound states based on light-front quantization. Next I will use the positronium system as an example to illustrate how we solve for relativistic bound state structure in BLFQ based on first-principles of QED. I will demonstrate the various divergences encountered in this method and show how we can nevertheless extract useful information on postronium structure. I will make comparison between the resulting wave functions and those obtained from an earlier effective potential approach. Finally I will present the probability distribution of finding a photon inside a positronium and compare with that inside a physical electron.