2. VERED ROM-KEDAR
Information acquired: 2025
VERED ROM-KEDAR is an academic who published a paper in 2019 entitled Exponential Fermi accelerators in closed and open geometries and on energy equilibration. VERED ROM-KEDAR published this work as part of a team: Rom-Kedar, Vered. Here is a description of this work: In 1949, Fermi proposed a mechanism for the heating of particles in cosmic rays. He suggested that on average, charged particles gain energy from collisions with moving magnetic mirrors since they hit the mirrors more frequently with heads on collisions. Fermi, Ulam and their followers modeled this problem by studying the energy gain of particles moving in billiards with slowly moving boundaries. Until 2010 several examples of such oscillating billiards leading to power- law growth of the particles averaged energy were studied. In 2010 we constructed an oscillating billiard which produces exponential in time growth of the particles energy [1]. The novel mechanism which leads to such an exponential growth is robust and may be extended to arbitrary dimension. Moreover, the exponential rate of.