Christian Kohlfürst
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
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Christian Kohlfürst has a total of 7 co-authors. Here are the top co-authors by number of shared publications:
- Reinhard Alkofer
University of Graz
4 shared publications - Holger Gies
Theoretisch-Physikalisches Institut, Abbe Center of Photonics, Friedrich Schiller University Jena, Jena, Germany
2 shared publications - Mario Mitter
Institut für Physik Karl-Franzens-Universität A-8010 Graz Austria
2 shared publications - Florian Hebenstreit
Albert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, University of Bern, 3012 Bern, Switzerland
1 shared publication - Florian Hebenstreit
Institut für Theoretische Physik Universität Heidelberg D-69120 Heidelberg Germany
1 shared publication G. von Winckel
Institut für Mathematik und wissenschaftliches Rechnen, Karl-Franzens-Universität, A-8010 Graz, Austria
1 shared publication
Latest Publications
- Open Access
Effective mass signatures in multiphoton pair production
Electron-positron pair production in oscillating electric fields is investigated in the nonperturbative threshold regime. Accurate numerical solutions of quantum kinetic theory for corresponding observables are presented and analyzed in terms of a proposed model for an effective mass of electrons and positrons acquired within the given strong electric field. Although this effective mass cannot provide an exact description of the collective interaction of a charged particle with the strong field, physical observables are identified which carry direct and sensitive signatures of the effective mass.
Open AccessEffective mass signatures in multiphoton pair production
Electron-positron pair production in oscillating electric fields is investigated in the nonperturbative threshold regime. Accurate numerical solutions of quantum kinetic theory for corresponding observables are presented and analyzed in terms of a proposed model for an effective mass of electrons and positrons acquired within the given strong electric field. Although this effective mass cannot provide an exact description of the collective interaction of a charged particle with the strong field, physical observables are identified which carry direct and sensitive signatures of the effective mass.
- 5 February 2014
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 112 (5) , 050402
Effective Mass Signatures in Multiphoton Pair Production
Electron-positron pair production in oscillating electric fields is investigated in the nonperturbative threshold regime. Accurate numerical solutions of quantum kinetic theory for corresponding observables are presented and analyzed in terms of a proposed model for an effective mass of electrons and positrons acquired within the given strong electric field. Although this effective mass cannot provide an exact description of the collective interaction of a charged particle with the strong field, physical observables are identified which carry direct and sensitive signatures of the effective mass.
- 5 February 2014
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 112 (5) , 050402
Effective Mass Signatures in Multiphoton Pair Production
Electron-positron pair production in oscillating electric fields is investigated in the nonperturbative threshold regime. Accurate numerical solutions of quantum kinetic theory for corresponding observables are presented and analyzed in terms of a proposed model for an effective mass of electrons and positrons acquired within the given strong electric field. Although this effective mass cannot provide an exact description of the collective interaction of a charged particle with the strong field, physical observables are identified which carry direct and sensitive signatures of the effective mass.
- Open Access
Optimizing the pulse shape for Schwinger pair production
Recent studies of the dynamically assisted Schwinger effect have shown that particle production is significantly enhanced by a proper choice of the electric field. We demonstrate that optimal control theory provides a systematic means of modifying the pulse shape in order to maximize the particle yield. We employ the quantum kinetic framework and derive the relevant optimal control equations. By means of simple examples we discuss several important issues of the optimization procedure such as constraints, initial conditions or scaling. By relating our findings to established results we demonstrate that the particle yield is systematically maximized by this procedure.
Open AccessOptimizing the pulse shape for Schwinger pair production
Recent studies of the dynamically assisted Schwinger effect have shown that particle production is significantly enhanced by a proper choice of the electric field. We demonstrate that optimal control theory provides a systematic means of modifying the pulse shape in order to maximize the particle yield. We employ the quantum kinetic framework and derive the relevant optimal control equations. By means of simple examples we discuss several important issues of the optimization procedure such as constraints, initial conditions or scaling. By relating our findings to established results we demonstrate that the particle yield is systematically maximized by this procedure.
- 27 August 2013
- Published by American Physical Society (APS) in Physical Review D
- Vol. 88 (4) , 045028
Optimizing the pulse shape for Schwinger pair production
Recent studies of the dynamically assisted Schwinger effect have shown that particle production is significantly enhanced by a proper choice of the electric field. We demonstrate that optimal control theory provides a systematic means of modifying the pulse shape in order to maximize the particle yield. We employ the quantum kinetic framework and derive the relevant optimal control equations. By means of simple examples we discuss several important issues of the optimization procedure such as constraints, initial conditions or scaling. By relating our findings to established results we demonstrate that the particle yield is systematically maximized by this procedure.
- 27 August 2013
- Published by American Physical Society (APS) in Physical Review D
- Vol. 88 (4) , 045028
Optimizing the pulse shape for Schwinger pair production
Recent studies of the dynamically assisted Schwinger effect have shown that particle production is significantly enhanced by a proper choice of the electric field. We demonstrate that optimal control theory provides a systematic means of modifying the pulse shape in order to maximize the particle yield. We employ the quantum kinetic framework and derive the relevant optimal control equations. By means of simple examples we discuss several important issues of the optimization procedure such as constraints, initial conditions or scaling. By relating our findings to established results we demonstrate that the particle yield is systematically maximized by this procedure.