Radiation-reaction Force: Lagrangian Formulation

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Description

This lecture covers the radiation-reaction force, the Lorentz covariant formulation of electrodynamics, Maxwell equations, and the Lagrangian formulation of electrodynamics. It delves into the concept of radiation-reaction force and the conservation of momentum, exploring the challenges in understanding the radiated momentum. The lecture also discusses the correct expressions for the force, the Schott term, and the non-relativistic limit, highlighting the importance of integrating constants in the analysis.

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https://mediaspace.epfl.ch/media/0_yg47jzc7

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In Newtonian mechanics, momentum (: momenta or momentums; more specifically linear momentum or translational momentum) is the product of the mass and velocity of an object. It is a vector quantity, possessing a magnitude and a direction. If m is an object's mass and v is its velocity (also a vector quantity), then the object's momentum p (from Latin pellere "push, drive") is: In the International System of Units (SI), the unit of measurement of momentum is the kilogram metre per second (kg⋅m/s), which is equivalent to the newton-second.

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