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quant-ph2024
Phases of quartic scalar theories and PT symmetry
Leqian Chen, Sarben Sarkar
For quantum mechanical anharmonic oscillator-type Hamiltonians, it is shown that there is a relation between the energy eigenvalues of parity symmetric and PT-symmetric phases for…
quant-ph2024
PT symmetric fermionic particle oscillations in even dimensional representations
Leqian Chen, Sarben Sarkar
We describe a novel class of quantum mechanical particle oscillations in both relativistic and non-relativistic systems based on symmetry and (relevant for fermions),…
hep-ph2024
Piecewise linear potentials for false vacuum decay and negative modes
Wen-Yuan Ai, Jean Alexandre, Sarben Sarkar
We study bounce solutions and associated negative modes in the class of piecewise linear triangular-shaped potentials that may be viewed as approximations of smooth potentials. In…